<p><strong>🎤Francis Femi Oloy</strong></p><p><strong>In this episode of Concentrating on Chromatography, David speaks with Francis Femi Oloy about using chromatography to uncover hidden pollutants in real-world water systems.</strong></p><p>Femi’s team analyzed polychlorinated biphenyls (PCBs) in six major rivers in southwestern Nigeria — compounds that were banned decades ago but still persist in the environment. Using a workflow that many analytical labs will recognize — liquid–liquid extraction, cleanup, rotary evaporation, nitrogen blowdown, and GC-ECD detection — they quantified 25 PCB congeners at trace levels and linked the results to ecological and human health risk.</p><h4><strong>In this conversation, we cover:</strong></h4><ul><li>Why legacy pollutants like PCBs still show up today</li><li>Choosing GC-ECD vs LC-MS for halogenated compounds</li><li>Liquid–liquid extraction and matrix cleanup strategies</li><li>Why sample concentration is critical for dilute environmental samples</li><li>How rotovap + nitrogen blowdown work together without losing volatile analytes</li><li>Seasonal trends (why wet season levels were higher)</li><li>Translating concentration data into meaningful risk assessments</li></ul><h3><strong>Video Transcription</strong></h3><section><div><div><div><div><div><div><p><strong>Persistent organic pollutants</strong> such as polychlorinated biphenyls (<strong>PCBs</strong>) remain a significant environmental concern despite decades of regulatory restrictions. In this interview, Francais Femi Oloy discusses the environmental and analytical challenges associated with monitoring PCB contamination in rivers of southwestern Nigeria, a rapidly industrializing region where urban growth, industrial activity, agriculture, and dense populations intersect with extensive aquatic systems.</p><p>Oloy explains that his interest in environmental contaminant analysis emerged from observing unexplained health problems and environmental degradation while growing up in Nigeria. This motivated his transition into organic and environmental chemistry, with a focus on identifying pollutants present in drinking water, agricultural soils, and food systems. Southwestern Nigeria, particularly the Lagos region, represents a critical environmental monitoring area due to intense industrial development, shipping activity, and widespread human dependence on rivers for domestic use, agriculture, and fishing.</p><p>Although PCBs are considered “<strong>legacy pollutants</strong>” and are no longer intentionally produced, the interview highlights why they continue to persist in aquatic environments. Old electrical transformers and aging industrial equipment still contain PCB residues, while historical contamination stored in river sediments can become remobilized during flooding, dredging, or sediment disturbance. Because PCBs are hydrophobic and resistant to degradation, they preferentially accumulate in sediments and bioaccumulate through aquatic food chains, creating long-term environmental and human exposure risks.</p><p>A major focus of the discussion centers on the analytical workflow used for PCB determination in environmental water samples. Composite river water samples were collected in amber glass bottles to avoid contamination and photodegradation, preserved with sodium azide to minimize microbial activity, and stored under cooled conditions prior to extraction. The analytical protocol employed <strong>liquid–liquid extraction</strong> using dichloromethane (DCM) and hexane to recover both polar and nonpolar PCB congeners. Oloy emphasizes that liquid–liquid extraction was selected over solid-phase extraction (SPE) because of concerns about congener retention within sorbent materials and clogging issues associated with large-volume environmental samples.</p><p>Following extraction, concentration and cleanup represented critical analytical stages due to the trace-level occurrence and volatility of PCBs. Silica and alumina cleanup procedures were used to remove matrix interferences prior to instrumental analysis. The concentration workflow combined rotary evaporation for bulk solvent reduction with nitrogen blowdown for final volume reduction to less than 1 mL, while carefully avoiding excessive temperature or complete dryness to minimize analyte loss. Oloy repeatedly stresses that improper concentration procedures are among the most common causes of analytical failure in PCB analysis.</p><p>For instrumental determination, the study utilized <strong>gas chromatography coupled with electron capture detection (GC-ECD)</strong> rather than LC-MS or GC-MS. According to Oloy, GC was preferred because PCBs are sufficiently volatile for gas chromatographic separation, while ECD provided superior sensitivity and selectivity for chlorinated compounds at environmentally relevant concentrations. The interview also discusses analytical validation strategies, including the use of surrogate standards to assess <strong>recoveries,</strong> which ranged from approximately <strong>85% to 114%</strong>, and signal-to-noise-based determination of detection limits.</p><p>The study further examined <strong>seasonal variations in PCB concentrations</strong>, revealing <strong>higher levels during the wet season</strong>. This observation was attributed to rainfall-driven runoff from contaminated infrastructure, sediment resuspension, and lower temperatures that reduce volatilization losses. To communicate toxicological relevance beyond simple concentration reporting, the researchers also calculated <strong>toxic equivalency values (TEQs)</strong>, converting mixtures of PCB congeners into biologically meaningful toxicity estimates comparable to dioxin toxicity metrics.</p><p>Beyond environmental monitoring, Oloy highlights broader research interests focused on <strong>pollutant remediation and sustainable environmental protection</strong>. His group is also involved in developing catalytic materials capable of degrading or removing persistent contaminants from environmental systems. Throughout the discussion, he emphasizes that analytical chemistry plays a central role not only in detecting pollutants, but also in enabling prevention, remediation, and long-term environmental management strategies.</p></div></div></div></div></div></div></section><blockquote><p><strong>This text has been automatically transcribed from a video presentation using AI technology. It may contain inaccuracies and is not guaranteed to be 100% correct.</strong></p></blockquote><blockquote><h4><strong>Concentrating on Chromatography Podcast</strong></h4><p>Dive into the frontiers of chromatography, mass spectrometry, and sample preparation with host David Oliva. Each episode features candid conversations with leading researchers, industry innovators, and passionate scientists who are shaping the future of analytical chemistry. From decoding PFAS detection challenges to exploring the latest in AI-assisted liquid chromatography, this show uncovers practical workflows, sustainability breakthroughs, and the real-world impact of separation science. Whether you’re a chromatographer, lab professional, or researcher you'll discover inspiring content!</p><p>You can find <strong>Concentrating on Chromatography Podcast </strong>in podcast apps:</p><ul><li><a target="_blank" rel="noopener noreferrer" href="https://open.spotify.com/show/1wZg67rCjoGju4yhqxI3tL"><strong>Spotify</strong></a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podcasts.apple.com/tz/podcast/concentrating-on-chromatography/id1788429185"><strong>Apple podcast</strong></a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podscan.fm/podcasts/concentrating-on-chromatography"><strong>podscan</strong></a></li></ul><p>and on <a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/@ChromatographyTalk/videos"><strong>YouTube channel</strong></a></p></blockquote>

Tracking Toxic PCBs in River Water using Gas Chromatography–Electron Capture Detection

<p><strong>This study presents a high-temperature GC-APCI-MS/MS method for detecting large polycyclic aromatic hydrocarbons in pyroplastics and environmental samples. The approach enables sensitive analysis of PAHs with molecular weights from 314–424 Da without extensive cleanup or fractionation.</strong></p><p>Application to pyroplastics from the M/V X-Press Pearl fire revealed substantially elevated levels of large PAHs compared to unburnt plastics. Several compounds, including 1,3,5-triphenylbenzene, emerged as promising markers for identifying pyroplastic contamination, supporting future monitoring of plastic burning, fires, and microplastic pollution.</p><blockquote><h4><strong>The original article</strong></h4><h4><a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acsomega.5c11703"><strong>Gas Chromatography-Atmospheric Pressure Chemical Ionization (GC-APCI) Expands the Analytical Window for Detection of Large PAHs (≥24 Ringed-Carbons) in Pyroplastics and Other Environmental Matrices</strong></a></h4><p>Cara Megill, Douglas M. Stevens*, Christopher M. Reddy, Bryan D. James*, Robert K. Nelson, and Frank L. Dorman</p><p>ACS Omega 2026, 11, 7, 12321–12329</p><p><a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1021/acsomega.5c11703">https://doi.org/10.1021/acsomega.5c11703</a></p><h6>licensed under <a target="_blank" rel="noopener noreferrer" href="https://creativecommons.org/licenses/by/4.0/"><strong>CC-BY 4.0</strong></a></h6></blockquote><p><strong>Selected sections from the article follow. Formats and hyperlinks were adapted from the original.</strong></p><div><p>The measurement and reporting of polycyclic aromatic hydrocarbons (PAHs) are routine practices in environmental monitoring and risk assessment. <a href="javascript:void(0);">(1−3)</a> However, of the thousands of PAHs, only the 16 designated as Priority Pollutants by the U.S. Environmental Protection Agency (EPA16) are typically reported. <a href="javascript:void(0);">(4,5)</a> These span two to six ringed parent PAHs, ranging in molecular weight from 128 to 278 Da. It is well recognized that this limited analyte list drastically simplifies and misses a significant fraction of PAHs. <a href="javascript:void(0);">(4)</a> For example, the concentration of C<sub>1</sub>–C<sub>4</sub> alkylated PAHs can be greater than or equal to the concentration of the EPA16 in crude oils and fuels. <a href="javascript:void(0);">(6)</a> Expanding the analytical window of PAHs has proven valuable for forensic analysis of oil spills (e.g., alkylated and heterocycle-containing PAHs) and relevant for toxicological evaluation(e.g., oxygen-, nitrogen-, and sulfur-containing PAHs). <a href="javascript:void(0);">(3,7)</a> Moreover, the sources of PAHs have distinct compositions of PAHs, <a href="javascript:void(0);">(1,8)</a> which enables the use of PAHs for source apportionment. <a href="javascript:void(0);">(2,7)</a> Including alkylated and sulfur-containing PAHs (those beyond the EPA16) in the investigation of environmental samples and other matrices provides greater discriminating power between potential sources (using extracted ion chromatograms). <a href="javascript:void(0);">(3,7,9)</a> Additionally, monitoring the compositional changes of PAHs in the environment can inform about the fate and environmental processing of the matrix (e.g., oil weathering). <a href="javascript:void(0);">(2)</a> While these efforts have made strides in considering other PAHs, an environmentally relevant fraction of PAHs remains underutilized.</p><p>PAHs with more than six rings have been reported in diverse environmental matrices. <a href="javascript:void(0);">(10,11)</a> These large PAHs (≥24 ringed-carbons <a href="javascript:void(0);">(10)</a>) have been found in combustion-derived particulate matter, <a href="javascript:void(0);">(12−19)</a> urban dust, <a href="javascript:void(0);">(20−23)</a> refinery deposits, <a href="javascript:void(0);">(11)</a> coal tars and pitches, <a href="javascript:void(0);">(24−27)</a> cokes, <a href="javascript:void(0);">(28)</a> soils, <a href="javascript:void(0);">(20,22)</a> sediments, <a href="javascript:void(0);">(20−23)</a> and deep-sea hydrothermal vent bitumen. <a href="javascript:void(0);">(29)</a> Most reports of large PAHs in environmental matrices have been from analyses of U.S. National Institute of Standards and Technology (NIST) standard reference materials (SRMs); <a href="javascript:void(0);">(18,21−23,25,26,30)</a> a few 302 Da isomers have been certified in three SRM. <a href="javascript:void(0);">(31)</a> Nonetheless, isomers ranging from 326 to 374 Da have been reported in SRMs for urban dust (1649a/b), diesel particulate (1650b and 2975), coal tar (1597a), and marine sediment (1941b), displaying qualitative differences between the sources in their large PAH compositions; <a href="javascript:void(0);">(18,20,22,23,27)</a> thus, large PAHs should offer forensic utility.</p><p>Recent advances in soft ionization within an atmospheric pressure chemical ionization source for gas chromatography–mass spectrometry (GC-APCI) are well-suited for the analysis of large PAHs. Two contributing factors for this are the tolerance for high carrier gas flow rates by GC-APCI and the sensitivity of charge exchange APCI for aromatic species. <a href="javascript:void(0);">(48)</a> Increasing the carrier gas flow rate reduces the elution temperature of analytes, making many higher mass analytes accessible using a conventional GC and column, although poor thermal stability may still pose challenges for some analytes. <a href="javascript:void(0);">(49)</a> Classic vacuum-source GC/MS systems using electron ionization (EI) restrict the upper carrier gas flow allowed from the GC, and therefore, cannot fully utilize high GC carrier gas flows. The sensitivity of GC-APCI for components of petroleum, such as PAHs, has been previously reported. <a href="javascript:void(0);">(48)</a> Furthermore, unlike LC-APCI, which commonly exhibits protonation of analytes in positive ion mode, <a href="javascript:void(0);">(50)</a> GC-APCI+ can operate with dry source conditions. These conditions result in nitrogen-mediated charge exchange ionization and ions of the form M+<strong><sup>•</sup></strong>, the same form of molecular ion created using EI. As a result, because the charge site location on an ion dictates which product ions will be stable, the same multiple reaction monitoring (MRM) transitions can be used for both GC-APCI MS/MS and EI MS/MS. <a href="javascript:void(0);">(51)</a></p><p>Herein, a GC-APCI method was developed for the detection of large PAHs. Due to the limited availability of pure standards, previously characterized NIST SRMs were used in method development as sources of large PAHs. The values of the method and detection of large PAHs were demonstrated by analyzing environmental plastic samples collected after the M/V <i>X-Press Pearl</i> ship fire and plastic spill.</p><h4><strong>Materials and Methods</strong></h4><h5><strong>GC-APCI</strong></h5><p>The solvent extracts and dilutions were analyzed by GC-APCI on a <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/554"><strong>Xevo TQ Absolute</strong></a> (Waters Corporation) tandem quadrupole mass spectrometer (TQ-MS/MS). The atmospheric pressure gas chromatography (APGC) ionization source was operated in charge transfer mode using dry N<sub>2</sub> as the reagent gas. Dry N<sub>2</sub> reagent gas creates molecular ions of the form M+<strong><sup>•</sup></strong> with no significant adduct formation for large PAHs. The high reagent gas flow rate of 350 mL/min into the ionization chamber, combined with low energies applied to the transfer optics from the atmospheric pressure region to the first quadrupole, leads to a high molecular ion survival rate. Furthermore, the use of MS/MS with quadrupoles operating at unit mass resolution prevents potential effects on response caused by adduct formation. Acquisitions were performed in positive ion, MRM mode. Two MRM transitions were used for each of the 16 precursor masses, ranging from 314 to 424 Da (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acsomega.5c11703/suppl_file/ao5c11703_si_001.pdf">Table S1</a>). No optimization of source conditions specific to the analysis of large PAHs was required. The list of 16 specific precursor masses targeted in this range was developed using multiple sources reporting large PAHs in NIST SRMs and samples from deep-sea hydrothermal vents. <a href="javascript:void(0);">(18,29,30)</a> The two transitions represented constant neutral losses of 2 and 4 Da at high collision energies of 60–100 eV, using N<sub>2</sub> as the collision gas.</p><p>For 1,3,5-TPB analysis, the APGC ionization source was operated in charge transfer mode using N<sub>2</sub> as the collision gas. Acquisitions were performed in positive ion, MRM mode, yielding six MRM transitions for analysis (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acsomega.5c11703/suppl_file/ao5c11703_si_001.pdf">Table S2</a>). Similar to the large PAHs, this analyte also shows neutral losses of 2 and 4 Da, reflecting behavior like that of the more condensed structures.</p><p>The <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?mainauthorItems=10&amp;search=8890+GC"><strong>8890 GC (Agilent Technologies)</strong></a> was configured with N<sub>2</sub> as the carrier gas and an <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?mainauthorItems=7&amp;search=Rxi-5HT"><strong>Rxi-5HT column (Restek)</strong></a> of 15 m in length, 0.25 mm inner diameter, and 0.10 μm film thickness. The split/splitless (SSL) injection port was operated at a 10:1 split ratio with a temperature of 380 °C. A 1 μL injection volume was used for all analyses. The temperature program was 30.8 min; it started by holding at 40 °C for 0.5 min, then ramped to 160 °C at 14 °C/min, followed by a ramp to 395 °C at 22 °C/min and a hold at the temperature for 11 min. The flow rate of the N<sub>2</sub> carrier gas was initially 0.60 mL/min, then ramped at 0.015 mL/min<sup>2</sup> to 0.90 mL/min, followed by a ramp at 0.150 mL/min<sup>2</sup> to 3.0 mL/min. To adapt the system for high-temperature work, the SSL was configured with a high-temperature septum (400 °C maximum), a 100% graphite liner O-ring, and a straight 4 mm inner diameter, wool-packed liner (450 °C maximum). Additional instrument and method details are included in the <a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acsomega.5c11703/suppl_file/ao5c11703_si_001.pdf">Supporting Information</a>.</p><h4><strong>Results</strong></h4><h5><strong>Analysis of Large PAHs in Pyroplastic Samples by GC-APCI</strong></h5><p>Macroplastic and microplastic debris from the M/V <i>X-Press Pearl</i> ship fire and plastic spill were investigated for the presence and distribution of large PAHs. The field samples included white, unburnt polyethylene nurdles and two types of pyroplastic, termed burnt plastic and combustion remnant (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acsomega.5c11703#fig1">Figure 1</a>), both of which were polyethylene. <a href="javascript:void(0);">(43)</a> The types of pyroplastics were previously operationally defined based on the size and shape of the pieces. <a href="javascript:void(0);">(43)</a></p><p>Investigation of the 302 Da isomers revealed profiles similar to those of the SRMs; however, unique differences were observed (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acsomega.5c11703/suppl_file/ao5c11703_si_001.pdf">Figure S2</a>). Eighteen to twenty-one peaks were detected across the plastic samples. Compared with the SRMs, the pyroplastics showed decreases in the relative abundance of dibenzo[<i>a</i>,<i>e</i>]fluoranthene and increases in dibenzo[<i>a</i>,<i>h</i>]pyrene (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acsomega.5c11703/suppl_file/ao5c11703_si_001.pdf">Figure S2</a>). This trend was not the case for the white nurdle sample. Starting at a retention time of 16.80 min, two peaks were unique to the pyroplastic samples (not present in the SRMs and especially minor in the white nurdles). These peaks followed that for dibenzo[<i>a</i>,<i>h</i>]pyrene, which had previously been reported as the last detected 302 Da isomer compound in the SRMs, <a href="javascript:void(0);">(21)</a> supporting their novelty as marker compounds of pyroplastics.</p><p>The plastic samples displayed similarities and differences in the presence and distribution of large PAHs (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acsomega.5c11703#fig3">Figure 3</a>). The white nurdles, burnt plastic, and combustion remnant all contained high-intensity peaks at 20.50 min for 398 Da and 19.55 min for 374 Da. Peaks between 20.00 and 20.25 min of 398 Da and the 19.35 min peak of 374 Da were reduced in intensity for the pyroplastics compared to the white nurdles (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acsomega.5c11703/suppl_file/ao5c11703_si_001.pdf">Figure S3</a>). Conversely, the peaks between 18.50 and 18.75 min of 350 Da were more intense in the pyroplastics compared to the white nurdles.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/ACS_Omega_2026_11_7_12321_12329_Figure_3_Comparison_of_the_resolved_isomers_for_398_374_and_350_Da_of_the_white_nurdles_burnt_plastic_and_combustion_remnant_pieces_ec390ebae3.jpg" alt="ACS Omega 2026, 11, 7, 12321–12329: Figure 3. Comparison of the resolved isomers for 398, 374, and 350 Da of the white nurdles, burnt plastic, and combustion remnant pieces collected from Pamunugama Beach, Sri Lanka, following the 2021 M/V X-Press Pearl ship fire and plastic spill." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_ACS_Omega_2026_11_7_12321_12329_Figure_3_Comparison_of_the_resolved_isomers_for_398_374_and_350_Da_of_the_white_nurdles_burnt_plastic_and_combustion_remnant_pieces_ec390ebae3.jpg 232w," sizes="100vw" width="1600" height="1077"></p><p>The levels of all the targeted large PAHs were at least 2 orders of magnitude higher in the pyroplastics than in the white nurdles. These levels included the individual PAHs that were common to the pyroplastics. This trend mirrored that observed for smaller PAHs and the solvent-extractable content of the sample types. <a href="javascript:void(0);">(39,43,46)</a> There were also slight differences in the signatures of the large PAHs found in the pyroplastics. The 398 Da peak at 20.24 min, along with the 374 Da peak at 19.31 min and the 350 Da peak at 18.61 min, were more prominent in the combustion remnant compared to the burnt plastic (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acsomega.5c11703/suppl_file/ao5c11703_si_001.pdf">Figure S3</a>).</p><p>Similar to the differences in large PAH signatures between the SRMs, the plastic samples had different signatures. Such qualitative interpretation of extracted ion chromatograms is forensically accepted for distinguishing sources. <a href="javascript:void(0);">(3)</a> This feature can potentially be utilized to differentiate between plastic types (e.g., virgin, weathered, and partially combusted) as well as to identify sources of the large PAHs and the combustion temperature.</p><h4><strong>Conclusions</strong></h4><p>GC-APCI-MS/MS proved a useful technique for detecting large PAHs in diverse environmental matrices, including extracts from pyroplastic field samples. Despite a lack of widely available analytical standards for large PAHs, NIST SRMs provided ample material for method development for their detection. Nonetheless, with the increasing research on microplastics in the environment and their relevance to human health, an environmental SRM with certified values for large PAHs is needed, and pyroplastics may provide such a source of material. Large PAHs and 1,3,5-TPB were detected in pyroplastic field samples and hold promise as chemical markers for pyroplastics, complementing other means for their detection in environmental samples (e.g., appearance and physical properties). Due to the accessibility of GC-APCI, the detection of large PAHs can be integrated into workflows for evaluating environmental samples, including those for microplastics.</p></div>

Gas Chromatography-Atmospheric Pressure Chemical Ionization (GC-APCI) Expands the Analytical Window for Detection of Large PAHs (≥24 Ringed-Carbons) in Pyroplastics and Other Environmental Matrices

<p><strong>In the week of May 11, the following webinars await you in the field of gas / solid phase and especially Raman, FTIR, GC and GC/MS.</strong></p><blockquote><h4><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/webinars"><strong>👉 DETAILS AND REGISTRATION IN THE WEBINARS SECTION</strong></a></h4><p><strong>👉 Search and filter in the largest global database</strong> with over <strong>5 500 GC, LC, MS and spectroscopy webinars</strong>.</p></blockquote><h5><strong>1. Thermo Fisher Scientific: Uncovering Microplastics: Identification, Quantification, and Exposure Assessment</strong></h5><ul><li>Tu, 12.5.2026 08:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/webinar/6136">Registration</a></li></ul><p>In this webinar, we will explore complementary analytical solutions for comprehensive microplastics characterization.</p><h5><strong>2. AZoM: From Lab to Line: Leveraging GC and Process MS for Petrochemical Gas Analysis</strong></h5><ul><li>We, 13.5.2026 16:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/webinar/6171">Registration</a></li></ul><p>Explore how GC and process MS work together in petrochemical workflows, combining detailed lab analysis with real-time gas monitoring for faster decisions.</p><h5><strong>3. Milestone: Modern Sample Prep for Organic Contaminants: PAHs, PFAS, MOSH/MOAH in Food</strong></h5><ul><li>We, 13.5.2026 16:00 CET</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/webinar/5822">Registration</a></li></ul><p>Learn how microwave-assisted extraction streamlines food analysis of PAHs, PFAS, and MOSH/MOAH, improving recoveries, reducing solvents, and meeting regulatory demands.</p><h5><strong>4. Thermo Fisher Scientific: End-to-end automation in GC/GC-MS: Trends, tools, and practical implementation</strong></h5><ul><li>We, 13.5.2026 18:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/webinar/6186">Registration</a></li></ul><p>In this GC/GC-MS power hour session, we’ll explore how automation is transforming laboratories by helping teams do more with less time, fewer resources, and greater confidence.</p><h5><strong>5. GERSTEL: Automating Food Safety Workflows for the Analysis of Edible Oils and Fats</strong></h5><ul><li>We, 13.5.2026 20:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/webinar/6168">Registration</a></li></ul><p>Learn how automated workflows improve data quality in edible oil testing, including FAMEs, MOSH/MOAH, and 3-MCPD analysis with real-world insights.</p>

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Watrex SCI-AQUA ULTRAPUR Water Purification System

WATREX ULTRAPURE is dedicated to preparaton of ultrapure water for analytical, biochemical and other laboratories.

<p><strong>WATREX ULTRAPURE is dedicated to preparaton of ultrapure water for analytical, biochemical and other laboratories where the water with specific conductivity values below 0.1 µS/cm and a TOC value of less than 50 ppb is required.</strong></p><p>The device is <strong>fed with pressurized pre-treated water</strong>, preferably with conductivity values below 15 µS/cm (e.g. water treated by reverse osmosis).</p><p><a target="_blank" rel="noopener noreferrer" href="https://watrex.com/obchod/water-purification/ultra-pure-water/ultrapur-laboratory-unit-for-ultra-pure-water-preparation-2/?utm_source=labrulez&amp;utm_medium=propagace&amp;utm_campaign=labrulez_produkty"><strong>Watrex ULTRAPUR</strong></a> is supplied with a <strong>digital flow conductometer</strong> that allows monitoring the proper functioning of the device and the need to replace exhausted filter cartridges.</p><p>The water treated by ULTRAPURE system is <strong>suitable for HPLC, AA, ICP</strong> and other demanding analyses.</p><p><strong>The maintenance of the device is very simple</strong> and consists only in replacing the filter inserts after they are exhausted.</p><p><span style="font-size:18px;"><strong>Price: 923</strong><bdi><span class="wmc-cache-pid woocommerce-Price-amount amount" data-wmc_product_id="24487"><strong>&nbsp;</strong></span><span class="wmc-cache-pid woocommerce-Price-amount amount woocommerce-Price-currencySymbol" data-wmc_product_id="24487"><strong>€</strong></span></bdi><span class="wmc-cache-pid" data-wmc_product_id="24487"><strong> </strong></span><small class="woocommerce-price-suffix"><span class="wmc-cache-pid" data-wmc_product_id="24487"><strong>ex. VAT</strong></span></small></span></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Watrex_Water_purification_systems_8810a2c48a.jpg" alt="Watrex: Water purification systems" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Watrex_Water_purification_systems_8810a2c48a.jpg 245w," sizes="100vw" width="2286" height="1130"></p><p>Basic requirements for laboratory operations include the easy availability of <strong>pure laboratory water</strong> in the necessary <strong>quantity and quality</strong>. Distillation, a popular technique for producing purified water in the past, has virtually completely supplanted by less energy-intensive and operationally dependable alternatives today. <strong>Reverse osmosis</strong> is the foundation of the majority of contemporary systems for <strong>producing purified water</strong>; in reality, this principle is supplemented with <strong>adsorption</strong>, <strong>ion exchange</strong>, <strong>filtration</strong>, <strong>ultrafiltration</strong>, and other physical-chemical techniques.</p>

Watrex xTrovert FLEX-O automation SPE sample preparation system

FLEX-O robotic system enabling automation sample preparation on solid phase using 96-titre plates.

<p><strong>FLEX-O robotic system enabling automation sample preparation on solid phase using 96-titre plates. Although there are solutions for automatic SPE on classic column formats, robotic system for automation in 96-well SPE plates is not currently on the market.</strong></p><p>In addition to <strong>the 8-channel pipetting head</strong>, the robot is equipped with <strong>a gripper</strong> and <strong>a filling dispenser</strong>, which applies wash solutions to the SPE positions on the plate. Instead of filtering using classic vacuum pump, which is used for manual SPE on columns or 96plates, the <a target="_blank" rel="noopener noreferrer" href="https://watrex.com/obchod/laboratory-automation/xtrovert-flex-o/?utm_source=labrulez&amp;utm_medium=propagace&amp;utm_campaign=labrulez_produkty"><strong>xTrovert FLEX-O</strong></a> system uses the so-called <strong>positive pressure technology</strong> when it is the reagent is pushed through the SPE membrane with a multi-channel pressure attachment. That’s it ensuring <strong>flow uniformity and reproducibility</strong> between individual samples on the plate.</p><p>The robot is capable of <strong>processing up to 4 x 96-well sample plates</strong> (384 of total samples) using a protocol with <strong>up to 8 different washing and extraction reagents</strong>.The system is <strong>compatible with the Waters OligoWorks™ SPE Macroplate</strong> (96-well), <strong>Waters Oasis™ PRiME HLB</strong>, <strong>Macherey-Nagel™ SPE MULTI 96-Monoblock CHROMABOND™</strong> and other 96-plate format SPE systems.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Watrex_x_Trovert_FLEX_O_automation_SPE_sample_preparation_system_ec3768960e.jpg" alt="Watrex xTrovert FLEX-O automation SPE sample preparation system.jpg" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Watrex_x_Trovert_FLEX_O_automation_SPE_sample_preparation_system_ec3768960e.jpg 208w," sizes="100vw" width="1433" height="1075"></p><p>If necessary, the <strong>user can make modifications to the log</strong> using a simple scripting language and subsequent wireless upload to the device. Userthe interface for controlling the system is based on the integrated computer Raspberry Pi ® s 800×480 RGB LCD multi-touch touch screen and the possibility of remote wifi accessfrom an external device (e.g. mobile phone or tablet).</p><h4>Application</h4><ul><li><strong>Purification of oligonucleotide synthesis products</strong></li><li><strong>Organic Synthesis</strong></li><li><strong>Environmental Analysis</strong></li><li><strong>Medical diagnostics</strong></li><li><strong>Molecular biology and biochemistry</strong></li></ul><p>The entire system was designed and developed by Watrex Praha and is <strong>manufactured in the Czech Republic</strong> and promises a shift in the performance and efficiency of laboratory processes worldwide!</p>

LECO Paradigm Flow Modulator and Shift Flow Splitter

Paradigm RFF Flow Modulator with Shift Flow Splitter boosts GC×GC peak capacity while maintaining constant MS/FID split ratios, enabling accurate, repeatable quantitation across full volatility ranges.

<p><strong>The Paradigm Flow Modulator with Reverse Fill-Flush (RFF) technology dramatically expands chromatographic peak capacity across the full volatility range while preserving quantitative accuracy. The RFF modulator fills a fixed-volume sample loop with effluent from the first-dimension column and then rapidly flushes it onto an orthogonal second-dimension stationary phase. This true comprehensive GC×GC transfer ensures excellent repeatability, robust quantitation, and high-quality separations for complex samples.</strong></p><h3><strong>Key features</strong></h3><ul><li><strong>Reverse Fill-Flush (RFF) modulation</strong> for true comprehensive GC×GC with complete analyte transfer</li><li><strong>Novel chromatography splitter</strong> with two channels of pressure assistance</li><li><strong>Designed for high flows</strong> required for RFF modulation (≈20 mL/min)</li><li><strong>Constant MS/FID split ratio</strong> maintained throughout the entire run, including oven temperature ramps</li></ul><h3><strong>ChromaTOF makes modulation simple</strong></h3><p>Paradigm eliminates complex offline flow calculations. Integrated <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/41"><strong>ChromaTOF® software</strong></a> automatically performs all required calculations via a straightforward interface. The resulting methods are optimized to deliver complete analyte transfer, excellent peak shapes, and high chromatographic resolution—without manual trial-and-error.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/LECO_Chromatof_flow_calculation_6b8ca60f99.jpg" alt="LECO Paradigm Flow Modulator and Shift Flow Splitter: ChromaTOF Software identifies method calculation improvements for RFF modulation" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_LECO_Chromatof_flow_calculation_6b8ca60f99.jpg 245w," sizes="100vw" width="670" height="426"></p><h3><strong>A shift forward in chromatographic analyses</strong></h3><p>The <strong>Shift Flow Splitter</strong> introduces a novel splitting mechanism that maintains a constant split ratio between MS and FID across the full GC oven program. Compared to traditional splitters, Shift delivers superior quantitative accuracy with minimal internal standardization, greatly simplifying compound-level and group-type quantitation in GC and GC×GC workflows.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/LECO_LECO_Paradigm_G_Cx_GC_prutokovy_modulator_a_Shift_splitter_5_245c7c2fde.jpg" alt="LECO Paradigm Flow Modulator and Shift Flow Splitter:   Close-up on the Shift Flow Splitter installed in a GC oven" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_LECO_LECO_Paradigm_G_Cx_GC_prutokovy_modulator_a_Shift_splitter_5_245c7c2fde.jpg 245w," sizes="100vw" width="2925" height="825"></p><h3><strong>Software-optimized detector performance</strong></h3><p>ChromaTOF automatically balances and optimizes the flow directed to TOFMS and FID, ensuring proper peak shapes and matched sensitivity for reliable qualitative and quantitative results.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/LECO_Optimize_flow_e51d505415.jpg" alt="LECO Paradigm Flow Modulator and Shift Flow Splitter:   ChromaTOF Software automatically optimizes flow rates" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_LECO_Optimize_flow_e51d505415.jpg 207w," sizes="100vw" width="808" height="608"></p>

Watrex SYRINGE FILTERS

Syringe filters (filters for syringes) are a universal tool that ensures sample purity and prevents contamination of analytical instruments.

<p><strong>Syringe filters (filters for syringes) are a universal tool that ensures sample purity and prevents contamination of analytical instruments. They are single-use filters used for precise filtration of liquids before their application or analysis.</strong></p><p><strong>Pore Size: </strong>Filters come in various pore sizes, ranging from 0.2 μm to 5 μm, depending on the required level of filtration. Smaller pores (e.g., 0.22 μm) are often used for sterilizing solutions, as they capture bacteria and other microorganisms.</p><p>We offer syringe filters in the following sizes: <strong>4 mm, 13 mm, 25 mm, and 30 mm</strong>, all available with pore sizes of <strong>0.22 μm and 0.45 μm</strong>.</p><p><strong>Filter Material:</strong> Syringe filters are made from different materials that are compatible with various sample types. It is important to select the correct filter material based on the chemical composition of the sample. We offer syringe filters made from the following materials:</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Watrex_Watrex_SYRINGE_FILTRY_b6ffda00e2.jpg" alt="Watrex: Watrex SYRINGE FILTERS" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Watrex_Watrex_SYRINGE_FILTRY_b6ffda00e2.jpg 245w," sizes="100vw" width="1808" height="1017"></p><h4><strong>Nylon</strong></h4><ul><li>Suitable for <strong>aqueous solutions</strong> and most <strong>organic solvents</strong>.</li><li>It has strong <strong>mechanical stability</strong> and excellent chemical compatibility with <strong>esters, bases, phenols, and alcohols.</strong></li></ul><h4><strong>PTFE (Polytetrafluoroethylene)</strong></h4><ul><li>Chemically resistant to most <strong>organic solvents</strong>.</li><li>It has very broad chemical and thermal compatibility.</li><li>PTFE filters are recommended for <strong>strong acids and bases</strong> and are excellent for filtration and degassing chromatography.</li></ul><h4><strong>PVDF (Polyvinylidene fluoride)</strong></h4><ul><li>Suitable for <strong>biological samples</strong>.</li><li>It has good <strong>chemical resistance</strong> and low UV absorption.</li><li>Commonly used for filtering all water-based samples and most solvents.</li></ul><h4><strong>PES (Polyester)</strong></h4><ul><li>Ideal for <strong>water-based samples</strong>, especially <strong>biological ones</strong>, with a fast and high flow rate.</li></ul><h4><strong>MCE (Mixed Cellulose Esters)</strong></h4><ul><li>Ideal for <strong>aqueous samples</strong>, <strong>tissue cultures</strong>, and <strong>sensitive biological samples</strong>.</li><li>It has lower chemical resistance, excellent water flow, and a better cutoff effect.</li></ul><h4><strong>PP (Polypropylene)</strong></h4><ul><li>Ideal for filtering all water-based samples and most solvents.</li><li>Used for general <strong>filtration of biological samples</strong>, <strong>solvents</strong>, <strong>deionized water</strong>, and reducing biological load.</li><li>It has good thermal compatibility.</li></ul><h5><strong>Examples of Use:</strong></h5><ol><li><strong>Sterilization of solutions: </strong>Filtration can remove bacteria and other microorganisms from solutions.</li><li><strong>Sample purification: </strong>Samples are filtered before analysis to remove solid particles that could contaminate analytical instruments or affect analysis results.</li><li><strong>Preparation for chromatography:</strong> Filtration before entering devices like HPLC (High-Performance Liquid Chromatography) to ensure sample purity.</li></ol><p><strong>You can also visit the full range of syringe filters on the </strong><a target="_blank" rel="noopener noreferrer" href="https://watrex.com/?s=syringe+filters&amp;post_type=product&amp;dgwt_wcas=1?utm_source=labrulez&amp;utm_medium=propagace&amp;utm_campaign=labrulez_produkty"><strong>Watrex website</strong></a><strong>.</strong></p>

Watrex VICI Consumables for HPLC/GC

As an authorized distributor of VICI, we provide a wide range of high-quality chromatography consumables that meet the most demanding requirements for precision and reliability.

<p><strong>As an authorized distributor of VICI, we provide a wide range of high-quality chromatography consumables that meet the most demanding requirements for precision and reliability.</strong></p><p>Our offer includes <strong>injection valves, adapters, tubing, filters, columns</strong> and other products that optimize the performance of your HPLC systems. Thanks to our close cooperation with partners, we guarantee the latest technology and expert advice.</p><p>Explore our range using the <strong>catalogs from</strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/Watrex_VICI_V_ddafed74a8.pdf"><strong> VICI Valco</strong></a><strong> and </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/Watrex_VICI_J_c72f706329.pdf"><strong>VICI Jour</strong></a> and do not hesitate to contact us for a non-binding quote at watrex@watrex.com or visit our website <a target="_blank" rel="noopener noreferrer" href="https://watrex.com/cs/uvod/?utm_source=labrulez">www.watrex.com</a>.</p><h3>VICI Valco Instuments</h3><p>For over 50 years, VICI Valco Instruments Co. Inc. has been the leading designer and manufacturer of standard and custom valves and fittings for precision analytical, biomedical, and biocompatible instrumentation.</p><h4>The offer includes, for example:</h4><ul><li><strong>Injectors and valves</strong></li><li><strong>Fittings</strong></li><li><strong>Detectors</strong></li><li><strong>Valve actuation and accessories</strong></li></ul><p>Vici Valco product line also includes a wide range of related products such as pneumatic and electric actuators, tubing and sampling loops, heated enclosures, valve sequence and temperature controllers, gas purifiers, GC detectors, and digital interfaces.</p><h3>VICI Jour</h3><p>VICI Jour offer the complete Jour line of accessories and consumables for fluid transfer in HPLC and LC.</p><h4>The offer includes, for example:</h4><ul><li><strong>Tubing (PEEK, F-polymeric, stainless steel)</strong></li><li><strong>Fittings (high pressure and low pressure)</strong></li><li><strong>Filters (high pressure and low pressure) and frits</strong></li><li><strong>Safety products</strong></li><li><strong>PEEK columns and guard columns</strong></li><li><strong>Tools and LC accessories</strong></li></ul><p>Jour products include a complete line of tubing and capillaries in a wide variety of diameters and materials, high and low pressure fingertight fittings and connection accessories, column hardware, high and low pressure filters, cutters and other tools, solvent saver, safey caps, waste caps, backpressure regulators, and much more.</p>

Mestrelab Research Chrom SST (System Suitability Testing) software

Chrom SST is a tool designed to automate System Suitability Testing data processing and analysis. It compares SST data to predefined specifications and provides actionable insights on instrument performance.

<p><strong>Automating data analysis for System Suitability Testing</strong></p><p><strong>Chrom SST is a vendor-agnostic tool </strong>designed to <strong>automate System Suitability Testing (SST) data processing and analysis</strong>. It compares SST data to predefined specifications and provides actionable insights on instrument performance.</p><h4><strong>Benefits</strong></h4><ul><li><strong>Integrates with various instruments</strong>, offering flexibility and scalability</li><li>Centralizes data for easy dashboarding enabling <strong>performance monitoring and preventive maintenance</strong></li><li>Enhances lab productivity and instrument uptime by allowing <strong>scheduling and automation of analyses</strong></li><li>Provides accurate and easy-to-interpret results, <strong>reducing manual effort and errors</strong></li></ul><h4><strong>Features</strong></h4><h5><strong>Simplified and Intuitive UI</strong></h5><p><strong>Chrom SST</strong> features a user-friendly interface designed to streamline the setup and execution of analyses, making it accessible even to non-experts. The intuitive layout ensures users can quickly perform essential tasks without requiring extensive training.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Mestrelab_Chrom_SST_Automating_data_analysis_for_System_Suitability_Testing_2_537f61b491.jpg" alt="Mestrelab Research Chrom SST: Simplified and Intuitive UI" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Mestrelab_Chrom_SST_Automating_data_analysis_for_System_Suitability_Testing_2_537f61b491.jpg 245w," sizes="100vw" width="736" height="427"></p><h5><strong>Automated Evaluation and Customization</strong></h5><p>The tool a<strong>utomates the evaluation of system suitability data</strong> against predefined specifications, delivering precise pass/fail outcomes. With robust customization options, users can tailor methods to their specific requirements and reuse them effortlessly, enabling faster setups and ensuring consistent, reliable results.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Mestrelab_Chrom_SST_Automating_data_analysis_for_System_Suitability_Testing_097ef6b122.jpg" alt="Mestrelab Research Chrom SST: Automated Evaluation and Customization" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Mestrelab_Chrom_SST_Automating_data_analysis_for_System_Suitability_Testing_097ef6b122.jpg 245w," sizes="100vw" width="736" height="427"></p><h5><strong>Enhanced Data Presentation</strong></h5><p><strong>Chrom SST</strong> includes a results dashboard and a comprehensive error-handling system. Clear messages and visual flags help identify and resolve system failures promptly, ensuring dependable and accurate performance assessments.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Mestrelab_Chrom_SST_Automating_data_analysis_for_System_Suitability_Testing_3_9cdf4f6d7b.jpg" alt="Mestrelab Research Chrom SST: Enhanced Data Presentation" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Mestrelab_Chrom_SST_Automating_data_analysis_for_System_Suitability_Testing_3_9cdf4f6d7b.jpg 245w," sizes="100vw" width="736" height="427"></p><h5><strong>Versatile Output Formats</strong></h5><p>Chrom SST supports <strong>various output formats</strong>, including Mnova files, PDFs, CSVs, and JSON, ensuring seamless interoperability with third-party tools. This versatility enables data centralization, visualization, and advanced analytics, empowering labs to fully leverage their data’s potentia.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Mestrelab_Chrom_SST_Automating_data_analysis_for_System_Suitability_Testing_4_8c7bae67dd.jpg" alt="Mestrelab Research Chrom SST: Versatile Output Formats" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Mestrelab_Chrom_SST_Automating_data_analysis_for_System_Suitability_Testing_4_8c7bae67dd.jpg 245w," sizes="100vw" width="736" height="427"></p>

DataApex Clarity DHA (Detailed Hydrocarbon Analysis) Extension

The DHA Extension is a software module for DHA calculations and reporting based on supported standards.

<div><div id=""><div><div><div><div><strong>Extension for Detailed Hydrocarbon Analysis. It allows the determination of individual components in spark ignition engine fuels.</strong></div></div></div></div></div></div><div><div id=""><div><div><div><div><div><p>DHA Extension brings you the ability to calculate the properties of the samples directly in the chromatography software with the complete workflow of <strong>data acquisition</strong>, <strong>peak calibration</strong>, <strong>DHA calculations</strong> based on supported norms and reporting. These methods are often referred to as <strong>PONA</strong>, <strong>PIONA</strong>, <strong>O-PON</strong>A, etc.</p><p>Calculations in the <strong>DHA Extension</strong> currently support the <strong>ASTM D-6730</strong> standard and methods developed by <strong>Dani Instruments SA</strong>.</p></div></div></div></div></div></div></div><p><img style="aspect-ratio:1151/879;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Data_Apex_Data_Apex_Clarity_DHA_Detailed_Hydrocarbon_Analysis_Extension_2_edfc9ba1f3.jpg" alt="DataApex Clarity DHA (Detailed Hydrocarbon Analysis) Extension" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Data_Apex_Data_Apex_Clarity_DHA_Detailed_Hydrocarbon_Analysis_Extension_2_edfc9ba1f3.jpg 204w," sizes="100vw" width="1151" height="879"></p><p>You can create an <strong>additional custom method</strong> based on your own laboratory condititions or we can implement a standard method as part of the DHA extension at your request.</p><p>If you request to implement another norm in the DHA Extension, please contact us at <a href="mailto:support@dataapex.com">support@dataapex.com</a>.</p><p>The DHA Extension is optional and it can only be used together with <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/999"><strong>Clarity</strong></a>.</p><p>Note that for more complex DHA calculations, Clarity DHA Extension should be complemented by specialized software (e.g. Dragon II DHA© - see the <a target="_blank" rel="noopener noreferrer" href="https://www.dataapex.com/downloads/26175/view">D151 datasheet</a> for more details).</p><p><strong>The DHA Extension is an optional fully integrated addition to </strong><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/999"><strong>Clarity software</strong></a><strong>. It can be ordered as part of a new installation or as an extension to an existing one. There are two variants to this extension:</strong></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Data_Apex_Data_Apex_Clarity_DHA_Detailed_Hydrocarbon_Analysis_Extension_bc1e53cf67.jpg" alt="DataApex Clarity DHA (Detailed Hydrocarbon Analysis) Extension" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Data_Apex_Data_Apex_Clarity_DHA_Detailed_Hydrocarbon_Analysis_Extension_bc1e53cf67.jpg 211w," sizes="100vw" width="1223" height="906"></p><h5><strong>p/n A33</strong></h5><ul><li>includes general ASTM-D6730 standard method and the possibility to create custom method.</li></ul><h5><strong>p/n A331</strong></h5><ul><li>includes additional methods developed by DANI Instruments S.p.A</li></ul><h3 data-start="49" data-end="78"><strong data-start="53" data-end="76">Norms specification</strong></h3><h4 data-start="80" data-end="102"><strong data-start="85" data-end="100">ASTM D-6730</strong></h4><ul data-start="103" data-end="302"><li data-start="103" data-end="127">Included in p/n A33.</li><li data-start="128" data-end="302">Standard Test Method for Determination of Individual Components in Spark Ignition Engine Fuels by 100-Metre Capillary (with Precolumn) High-Resolution Gas Chromatography.</li></ul><h4 data-start="304" data-end="328"><strong data-start="309" data-end="326">Custom Method</strong></h4><ul data-start="329" data-end="441"><li data-start="329" data-end="353">Included in p/n A33.</li><li data-start="354" data-end="441">Allows you to create a custom method which meets the conditions in your laboratory.</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Data_Apex_Data_Apex_Clarity_DHA_Detailed_Hydrocarbon_Analysis_Extension_3_f5e659a432.jpg" alt="DataApex Clarity DHA (Detailed Hydrocarbon Analysis) Extension" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Data_Apex_Data_Apex_Clarity_DHA_Detailed_Hydrocarbon_Analysis_Extension_3_f5e659a432.jpg 245w," sizes="100vw" width="1233" height="756"></p><h4><strong data-start="452" data-end="475">ASTM D-6730 by DANI</strong></h4><ul data-start="478" data-end="578"><li data-start="478" data-end="535">Method by Dani Instruments SA with cryogenic cooling.</li><li data-start="536" data-end="578">Available only at Dani Instruments SA.</li></ul><h4 data-start="580" data-end="619"><strong data-start="585" data-end="617">ASTM D 2421-02 and D 2598-02</strong></h4><ul data-start="620" data-end="720"><li data-start="620" data-end="677">Method by Dani Instruments SA with cryogenic cooling.</li><li data-start="678" data-end="720">Available only at Dani Instruments SA.</li></ul><h4><strong data-start="731" data-end="758">Extension specification</strong></h4><ul data-start="761" data-end="911"><li data-start="761" data-end="782"><strong data-start="763" data-end="776">Part No.:</strong> A33</li><li data-start="783" data-end="911"><strong data-start="785" data-end="806">Related products:</strong><ul data-start="811" data-end="911"><li data-start="811" data-end="832"><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/999">Clarity</a> (p/n C50)</li><li data-start="835" data-end="864"><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/1000">Clarity Offline</a> (p/n C59)</li><li data-start="867" data-end="911">GC or AS Control module (p/n A23 or A26)</li></ul></li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Data_Apex_Clarity_DHA_Detailed_Hydrocarbon_Analysis_Extension_2_d15379bcdf.jpg" alt="DataApex Clarity DHA - Detailed Hydrocarbon Analysis Extension" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Data_Apex_Clarity_DHA_Detailed_Hydrocarbon_Analysis_Extension_2_d15379bcdf.jpg 245w," sizes="100vw" width="1995" height="1182"></p>

Phenomenex Zebron PLUS GC Inlet Liners

GC liners Zebron PLUS with unique deactivation ensure high inertness for trace and active compound analysis.

<p class="cke-user_style-important"><strong>Protect and Increase the Lifetime of Your GC Column</strong></p><h4><strong>Why Use Pre-Packed Liners?</strong></h4><p>Though the upfront cost of self-packing your liner may seem attractive, the time and headaches caused by resulting tailing or irreproducible peaks can be sizeable! Self-packed wool fibers commonly break during installation and any existing deactivation on the liner can also be scratched or damaged. Pre-packed Zebron PLUS liners undergo the deactivation process with the quartz wool already in place, which ensures that any active sites that form during packing are not exposed.</p><h4><strong>Deactivation Protects Your Samples</strong></h4><h5><strong>See the difference: Zebron PLUS vs. Traditional Deactivation</strong></h5><p>Zebron PLUS GC inlet liners undergo a unique deactivation process, resulting in a remarkably inert pathway that prevents sample adsorption and degradation for active compounds.</p><p><strong>A: Zebron PLUS Deactivation</strong></p><p>Every batch of Zebron PLUS liners is manufactured with a thick layer of vapor-deposited deactivation for the highest inertness. They are then tested for activity using both EPA Methods 8081 and 8270 to ensure the highest level of sample protection possible.</p><p><strong>B: Traditional Deactivation</strong></p><p>Traditionally, liners have only been passivated with thin deactivation layers – and sometimes have not at all – putting your analytes at risk of adsorption or degradation!</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Zebron_PLUS_vs_Traditional_Deactivation_5c8ce20af6.jpg" alt="Phenomenex: Zebron PLUS vs. Traditional Deactivation" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Zebron_PLUS_vs_Traditional_Deactivation_5c8ce20af6.jpg 245w," sizes="100vw" width="909" height="567"><br>&nbsp;</p><h4><strong>Easy, Touch free Installation</strong></h4><ul><li>Remarkably inert GC inlet liners for superior sample protection</li><li>Easy to install, touchless packaging allows you to protect yourself from cuts or breakage</li><li>Eliminates contamination that may occur during the installation process</li></ul><p><strong>A: Pre-installed o-ring saves steps</strong></p><p><strong>B: Touchless installation prevents contamination</strong></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Easy_Touch_free_Installation_of_Zebron_GC_Inlet_Liner_dd54ebc577.jpg" alt="Phenomenex: Easy, Touch free Installation of Zebron GC Inlet Liner" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Easy_Touch_free_Installation_of_Zebron_GC_Inlet_Liner_dd54ebc577.jpg 245w," sizes="100vw" width="907" height="573"></p><h4><strong>Liner Geometry Improves Performance</strong></h4><p>The geometry of a liner refers to the type and shape of a liner. Each geometry addresses a particular sample or injection type. use the chart below to determine the best geometry for your sample.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Liner_Geometry_Improves_Performance_9bd57c3c81.jpg" alt="Phenomenex: Liner Geometry Improves Performance" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Liner_Geometry_Improves_Performance_9bd57c3c81.jpg 245w," sizes="100vw" width="1391" height="362"></p><h3><strong>Choose Your Liner</strong></h3><h4><strong data-start="74" data-end="123">For Agilent® or Thermo Scientific® GC Systems</strong></h4><ul><li><strong>Direct Connect</strong> - Trace analysis, Splitless injections (4 x 78.5 mm) &nbsp;<ul><li>Part Nos: AG2-0A50-01, AG2-0A50-05, AG2-0A50-25 &nbsp;</li></ul></li><li><strong>Single Taper</strong> - Pesticides (4 x 78.5 mm) &nbsp;<ul><li>Part Nos: AG2-0A10-01, AG2-0A10-05, AG2-0A10-25 &nbsp;</li></ul></li><li><strong>Single Taper Z-Liner™</strong> - Semi-volatiles, Dirty samples (4 x 78.5 mm) &nbsp;<ul><li>Part Nos: AG2-0A13-01, AG2-0A13-05, AG2-0A13-25 &nbsp;</li></ul></li><li><strong>Single Taper with Wool</strong> - Semi-volatiles (4 x 78.5 mm) &nbsp;<ul><li>Part Nos: AG2-0A11-01, AG2-0A11-05, AG2-0A11-25 &nbsp;</li></ul></li><li><strong>Straight</strong> - Volatiles (4 x 78.5 mm) &nbsp;<ul><li>Part Nos: AG2-0A00-01, AG2-0A00-05, AG2-0A00-25 &nbsp;</li></ul></li><li><strong>Straight Z-Liner™</strong> - Dirty samples, Volatiles, High initial oven temperatures (4 x 78.5 mm) &nbsp;<ul><li>Part Nos: AG2-0A03-01, AG2-0A03-05, AG2-0A03-25 &nbsp;</li></ul></li><li><strong>Straight Single Baffle</strong> - Semi-volatiles, Pesticides (1.8 x 71 mm) &nbsp;<ul><li>Part Nos: AG2-1F06-01, AG2-1F06-05, AG2-1F06-25 &nbsp;</li></ul></li></ul><h4><strong>For PerkinElmer® GC Systems</strong></h4><ul><li><strong>Single Taper </strong>- Pesticides (4 x 92 mm) &nbsp;<ul><li>Part Nos: AG2-2A10-01, AG2-2A10-05, AG2-2A10-25 &nbsp;</li></ul></li><li><strong>Single Taper Z-Liner™</strong> - Semi-volatiles, Dirty samples (4 x 92 mm) &nbsp;<ul><li>Part Nos: AG2-2A13-01, AG2-2A13-05, AG2-2A13-25 &nbsp;</li></ul></li><li><strong>Straight</strong> - Volatiles (4 x 92 mm) &nbsp;<ul><li>Part Nos: AG2-2A00-01, AG2-2A00-05, AG2-2A00-25 &nbsp;</li></ul></li><li><strong>Straight Z-Liner™</strong> - Volatiles, Dirty samples (2 x 86.2 mm) &nbsp;<ul><li>Part Nos: AG2-2E03-01, AG2-2E03-05, AG2-2E03-25 &nbsp;</li></ul></li><li><strong>Straight Z-Liner™</strong> - High initial oven temperatures (4 x 92 mm) &nbsp;<ul><li>Part Nos: AG2-2A03-01, AG2-2A03-05, AG2-2A03-25 &nbsp;</li></ul></li></ul><h4><strong>For Shimadzu® GC Systems</strong></h4><h5><strong>Shimadzu 17A GC Systems</strong></h5><ul><li><strong>Single Taper Z-Liner™</strong> - Pesticides (3.4 x 95 mm) &nbsp;<ul><li>Part Nos: AG2-3B13-01, AG2-3B13-05, AG2-3B13-25 &nbsp;</li></ul></li><li><strong>Straight Z-Liner™</strong> - Volatiles, Dirty samples, High initial oven temperatures (3.4 x 95 mm) &nbsp;<ul><li>Part Nos: AG2-3B03-01, AG2-3B03-05, AG2-3B03-25 &nbsp;</li></ul></li></ul><h5><strong>Shimadzu 2010 GC Systems&nbsp;</strong></h5><ul><li><strong>Single Taper</strong> - Pesticides (3.4 x 95 mm) &nbsp;<ul><li>Part Nos: AG2-4B10-01, AG2-4B10-05, AG2-4B10-25 &nbsp;</li></ul></li><li><strong>Single Taper Z-Liner™</strong> - Semi-volatiles, Dirty samples (3.4 x 95 mm) &nbsp;<ul><li>Part Nos: AG2-4B13-01, AG2-4B13-05, AG2-4B13-25 &nbsp;</li></ul></li><li><strong>Straight</strong> - Volatiles (3.4 x 95 mm) &nbsp;<ul><li>Part Nos: AG2-4B00-01, AG2-4B00-05, AG2-4B00-25 &nbsp;</li></ul></li><li><strong>Straight Z-Liner™</strong> - Volatiles, Dirty samples, High initial oven temperatures (3.4 x 95 mm) &nbsp;<ul><li>Part Nos: AG2-4B03-01, AG2-4B03-05, AG2-4B03-25 &nbsp;</li></ul></li></ul>

Phenomenex Strata C18-E Solid Phase Extraction (SPE)

Strata C18-E is a silica-based end-capped C18 solid phase extraction (SPE) sorbent.

<p><strong>Strong Hydrophobic Retention Solid Phase Extraction (SPE)</strong></p><p>Strata C18-E is a <strong>silica-based</strong> <strong>end-capped C18</strong> solid phase extraction (SPE) sorbent that offers <strong>strong hydrophobic retention</strong> with negligible secondary polar interactions from active silanol groups. Strata C18-E can be best used for the <strong>extraction of hydrophobic</strong> or <strong>polar organic analytes</strong> from <strong>aqueous matrices</strong>. In addition, Strata SPE sorbents are manufactured with the highest purity and extensively tested to give clean extracts.</p><p>Strata C18-E is <strong>compatible</strong> with various formats, including <strong>C18 SPE cartridges</strong>. Our C18 SPE products are synonymous with quality, offering the highest purity and undergo rigorous testing to deliver consistently clean extracts for your analytical needs.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Strata_C18_E_748c192b52.webp" alt="Phenomenex: Strata-C18-E" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Strata_C18_E_748c192b52.webp 245w," sizes="100vw" width="500" height="150"></p><ul><li><strong>Surface Area (m²/g)</strong>: 500, m²/g</li><li><strong>Separation Mode:</strong> Reversed Phase</li><li><strong>Pore Size:</strong> 70, 100</li><li><strong>Particle Size:</strong> 20, 55</li><li><strong>Recommended Use: </strong>Extraction of hydrophobic molecules</li></ul><h4><strong>Starting Method</strong></h4><h5><strong>Strata Reversed Phase</strong></h5><ul><li><strong>Condition:</strong> 1 mL Methanol</li><li><strong>Equilibrate:</strong> 1 mL DI Water</li><li><strong>Load:</strong> Pretreated sample</li><li><strong>Wash</strong>: 1 mL 5% Methanol in DI Water, dry under vacuum for 2-5 min</li><li><strong>Elute:</strong> 1 mL Methanol</li></ul><p>Based on 100 mg/1 mL sorbent mass. The above is a convenient starting point for SPE method development, further optimization may be required to tailor the method for your specific extraction needs.</p>

Phenomenex Zebron ZB-WAXplus GC Columns

Zebron ZB-WAXPLUS is 100 % aqueous stable, excellent for aqueous samples

<h4><strong>100% Aqueous Stability for Polar Compounds</strong></h4><h5><strong>Enhanced Aqueous Stability</strong></h5><ul><li>100 % aqueous stable, excellent for aqueous samples</li><li>Extremely inert for acidic compounds</li><li>Enhanced selectivity for low boiling solvents</li><li>High retention of alcohols and chlorinated solvents</li><li>Increased efficiency at 20 °C</li></ul><h5><strong>No Way!</strong></h5><p>A specialized bonding procedure makes ZB-WAXplus columns exceptionally stable to replicate injections of water-based matrices, while maintaining the selectivity that makes them the scientist’s choice for highly polar compounds.</p><h4><strong>WAX columns from different manufacturers are not always created equal!</strong></h4><p>As part of the Zebron PLUS GC column family, ZB-WAXPLUS is manufactured using improved technologies that reflect our attention to detail every aspect of a ZB-WAXPLUS column’s anatomy is meticulously engineered and individually tested for unprecedented performance.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Zebron_WA_Xplus_WAX_columns_from_different_manufacturers_are_not_always_created_equal_0502f6d8e4.jpg" alt="Phenomenex: ZebronWAXplus - WAX columns from different manufacturers are not always created equal" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Zebron_WA_Xplus_WAX_columns_from_different_manufacturers_are_not_always_created_equal_0502f6d8e4.jpg 224w," sizes="100vw" width="1301" height="904"></p><h4><strong>Water Reproducibility of ZB-WAXPLUS</strong></h4><p>Historically, polyethylene glycol (PEG) phases have been unstable with aqueous samples such as beverages or glycols, resulting in poor reproducibility and decreased lifetime. The ZB-WAXplus bonding procedure results in exceptional stability to repeated injections of aqueous matrices.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Zebron_WA_Xplus_Reproducibility_and_Stability_Test_e0f47777a3.jpg" alt="Phenomenex: ZebronWAXplus - Reproducibility and Stability Test" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Zebron_WA_Xplus_Reproducibility_and_Stability_Test_e0f47777a3.jpg 245w," sizes="100vw" width="1437" height="818"></p><p>ZB-WAXPLUS provides optimal selectivity for many aqueous soluble compounds such as those found in alcoholic beverages or glycol samples. The ZB WAXPLUS bonding process results in exceptional stability to repeated injections of aqueous matrices like whiskey. Multiple or routine water injections will not alter the efficiency or polarity of the phase over time.</p><h4><strong>Recommended Use</strong></h4><ul><li>Enhanced selectivity for low boiling solvents; high retention of alcohols and chlorinated solvents and extremely inert for acidic compounds</li></ul><h4><strong>Recommended Applications</strong></h4><ul><li>Alcohols</li><li>Aldehydes</li><li>Aromatics</li><li>Essential Oils</li><li>Flavors &amp; Fragrances</li><li>Free Fatty Acids</li><li>Glycols</li><li>OVIs</li><li>Pharmaceuticals</li><li>Solvents / Residual Solvents</li><li>Styrene</li><li>Xylene Isomers</li></ul><h5><strong>Upgrade to Zebron from any 100 % polyethylene glycol phase:</strong></h5><p><strong>Agilent®</strong></p><ul><li>DB®-WAX</li><li>CAM</li><li>HP-20M</li><li>Carbowax 20M</li><li>CP-Wax 52 CB</li></ul><p><strong>Restek®</strong></p><ul><li>Stabilwax®</li></ul><p><strong>SGE®</strong></p><ul><li>BP20</li></ul><p><strong>Supelco®</strong></p><ul><li>SUPELCOWAX®10</li></ul><h3><strong>Phenomenex Zebron PLUS GC Columns</strong></h3><h4><strong>What’s in the Zebron™ PLUS?</strong></h4><ul><li>Active sites on a GC column’s surface can result in analyte adsorption and degradation, which negatively affect peak shape and response.</li><li>To reduce potential surface activity, <strong>Zebron PLUS phases</strong> (ZB-1plus, ZB-5plus, ZB-5MSplus, and ZB-624plus) are designed with a rigorous fused silica deactivation process that improves inertness and peak shapes for troublesome compounds</li><li>Zebron ZB-WAX<sub>PLUS</sub> is specially designed for <strong>100% aqueous stability</strong>, <strong>enhanced resolution</strong> and <strong>better reproducibility</strong>.</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Phenomenex_Zebron_PLUS_GC_Column_phase_522f5f8817.jpg" alt="Phenomenex: Zebron PLUS GC Column phase" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Phenomenex_Zebron_PLUS_GC_Column_phase_522f5f8817.jpg 245w," sizes="100vw" width="1191" height="454"></p>

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