EU Regulation 396/2005: Pesticide Residue Testing and the Critical Role of QuEChERS Evaporation in Food Safety

Our Library never stops expanding. What are the most recent contributions to LabRulezGCMS Library in the week of 4th May 2026? Check out new documents from the field of the gas phase, especially GC and GC/MS techniques!<blockquote>👉 <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library">SEARCH THE LARGEST REPOSITORY OF DOCUMENTS ABOUT GCMS AND RELATED TECHNIQUES</a></blockquote><blockquote>👉 Need info about different analytical techniques? Peek into <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library">LabRulezLCMS</a> or <a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/library">LabRulezICPMS</a> libraries.</blockquote>This week we bring you application note by Shimadzu, presentation by MDCW / JEOL and technical note by Thermo Fisher Scientific!<h3>1. MDCW / JEOL: Flow-Modulated GCxGC-QMS Analysis Without Splitting Off the GC Flow</h3><ul><li>Presentation</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/O_16_Jensen_11e29d5022.pdf">Full PDF for download</a></li></ul><section><div><div><div><div><div><div>This presentation by Kirk Jensen (JEOL USA) explores the feasibility of performing flow-modulated comprehensive two-dimensional gas chromatography (GC×GC) coupled with quadrupole mass spectrometry (QMS) without splitting the GC flow, which is traditionally required to protect MS systems from high carrier gas flows. The core concept builds on GC×GC, where compounds are separated using a primary and secondary column connected via a modulator, significantly increasing separation power compared to one-dimensional GC. The presentation contrasts thermal modulation (offering sharper peaks and higher theoretical sensitivity but requiring cryogenic cooling) with flow modulation, which avoids cryogens, handles volatile analytes well, and is more flexible, but typically demands higher gas flows that standard MS systems cannot tolerate .To address this limitation, the study utilizes the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?manufacturerItems=24&amp;search=JMS-Q1600GC">JEOL JMS-Q1600GC</a> UltraQuad quadrupole GC-MS system, which can accept unusually high carrier gas flows (up to ~20 mL/min), enabling direct coupling with a SepSolve INSIGHT flow modulator without splitting the effluent . The analytical setup includes dual GC columns (e.g., Zebron ZB-5MSplus for the first dimension and BPX50 for the second), high secondary flow rates (~25 mL/min), and electron ionization (EI) MS detection. Additional system components include optional FID detection, bleed line control, and ChromeSpace software for data processing . This configuration allows full analyte transfer into the MS, eliminating the need for flow splitting and potentially improving detection efficiency.Experimental results demonstrate the applicability of this approach to complex mixtures, including a pesticide mixture containing over 200 compounds and real-world samples such as perfumes and fuels. The GC×GC-MS system produced detailed two-dimensional chromatograms with high spectral quality, enabling the correct identification of approximately 120 compounds despite relatively moderate spectral match factors . Comparisons at different flow rates (e.g., 25 vs. 50 mL/min) showed that spectral integrity and compound identification remain robust, indicating that higher flow operation does not significantly compromise MS performance.In conclusion, the work demonstrates that flow-modulated GC×GC-QMS without flow splitting is feasible, provided that the MS system can tolerate high carrier gas flows. While further optimization is needed (e.g., column selection, inlet pressure, and separation conditions), the approach offers a practical alternative to thermal modulation by eliminating cryogens and simplifying operation. Future work will focus on improving sensitivity, optimizing separations, and exploring alternative carrier gases such as hydrogen to reduce costs and expand applicability</div></div></div></div></div></div></section><h3>2. Shimadzu: Detailed Hydrocarbon Analysis by Nexis GC-2030 Using ASTM D6730</h3><ul><li>Application note</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/an_01_00863_en_eb633bc741.pdf">Full PDF for download</a></li></ul><h5>User Benefits</h5><ul><li>Detailed compositional analysis of gasoline in accordance with ASTM D6730 is feasible using the Nexis GC-2030.&nbsp;</li><li>By employing PONAsolution, a PONA/DHA analysis software, laborious identification tasks can be reduced, and quantitation calculations and report generation can be performed automatically.</li></ul>ASTM D6730 specifies the analysis of hydrocarbons in gasoline and oxygenates such as ethanol, methyl tert-butyl ether (MTBE), and ethyl tert-butyl ether (ETBE) over a boiling point range up to 225 ̊C. Identification and quantification of individual compounds in gasoline are critically important for refinery process control and product quality assurance. In this application news, we report compositional analysis of gasoline conforming to ASTM D6730 using the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?mainauthorItems=1&amp;search=Nexis+GC-2030">Nexis GC-2030 gas chromatograph</a>. Gasoline typically comprises over 100 hydrocarbons, making identification tasks highly complex; however, PONAsolution, a PONA/DHA analysissoftware,simplifies this process.<h4>PONAsolution</h4>PONAsolution Ver.6 provides retention index libraries for each relevant standard (ASTM D6730, D6729, D5134, D6733). Identification of n-alkanes automatically corrects the retention times of the remaining several hundred components, thus streamlining the identification process. When only a specific retention region requires adjustment, the two-point identification function is useful (Fig. 1). In the two-point identification procedure, reference and sample chromatograms are compared while assigning corresponding peaks. First, click on an identified component mark in the reference data (Fig. 1, a), then click the matching sample peak (Fig. 1, b). Repeat this for a second pair of peaks. The retention times of components between these two anchor points are then automatically corrected.<h4>Conclusion</h4>Compositional analysis of gasoline in accordance with ASTM D6730 was performed. The combination of SH PONA Tuning Column and SH-1 PONA main column enabled separation of compounds with closely spaced retention times. Moreover, use of PONAsolution software greatly simplifies complex identification tasks.<h3>3. Thermo Fisher Scientific: Fiber optic probes add flexibility to Raman chemical analysis</h3><ul><li>Technical note</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/drx3_flex_tech_note_tn54708_bebb56b870.pdf">Full PDF for download</a></li></ul>Fourier Transform Infrared Spectroscopy (FTIR) and Raman Spectroscopy are non-destructive analytical techniques that rely on the interaction of electromagnetic radiation with molecular vibrations to provide information about the chemical composition and structure of a sample. Despite their similarities, there are some distinct differences between the two techniques. In principle, FTIR is based on the absorption of infrared radiation by molecules and measures changes in dipole moment during molecular vibrations. Raman spectroscopy, on the other hand, is based on the inelastic scattering of monochromatic light and measures changes in polarizability during molecular vibrations.&nbsp;When applied to bulk chemical analysis, both FTIR and Raman spectroscopy can be used to analyze solids, liquids, and gases, but the nature of Raman spectroscopy lends some unique sampling advantages. Additionally, Raman often requires little to no sample preparation. Presented herein are application examples that highlight some of the sampling advantages of Raman spectroscopy. All the spectral data in this technical note were collected using a <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/2238">Thermo Scientific™ DXR3 Flex Raman Spectrometer</a> equipped with a fiber optic probe. (Fiber optics are readily available for Raman spectroscopy because of the use of visible and NIR light and do not require the exotic materials associated with FTIR fiber optics.) Preliminary tests for all samples were carried out using both 532 nm and 785 nm excitations, and it was determined that the 785 nm laser set gave an overall better balance between fluorescence and Raman scattering efficiency.<h4>Summary&nbsp;</h4>In this technical note, the analyses of a variety of samples by Raman spectroscopy are demonstrated. All samples were analyzed without sample preparation.&nbsp;<ul><li>Precise and localized analysis at the focal point of the Raman-exciting laser allows sampling through glass bottles, blister packaging and plastic containers, which eliminates possible cross contamination and analyst exposure to hazardous materials. The contributions from the packaging and containers depend on the type of container material, the container thickness, and the materials’ chemical compositional complexity, but these contributions can be readily subtracted out when needed.&nbsp;</li><li>Water is a weak Raman scatterer. Raman therefore has reduced water sensitivity, making it a preferred technique for aqueous solution analysis over FTIR. As demonstrated in the analysis of an energy drink, the Raman bands from water can be subtracted from the spectrum of the aqueous solution, leading to the identification of the components of the solution.&nbsp;</li><li>Raman spectroscopy is well suited for the analysis of inorganic materials, especially in identifying the crystal phases and polymorphs, as demonstrated by the analyses of minerals and pigments in a painting.&nbsp;</li><li>Fiber optic probes provide flexibility and ease of maneuverability. This is particularly advantageous when analyzing samples that are difficult to access or manipulate, such as large containers, geological samples and paintings</li></ul>The DXR3 Flex has multiple sampling options available. A properly configured fiber-optic probe is arguably the most versatile accessory for the analysis of bulk solids and liquids. The advantages, both from those inherent to Raman spectroscopy and those resulting from the use of fiber optic probe, provide opportunities for a wide variety of different applications when using the DXR3 Flex Raman Spectrometer.

News from LabRulezGCMS Library - Week 19, 2026

🎤Francis Femi OloyIn this episode of Concentrating on Chromatography, David speaks with Francis Femi Oloy about using chromatography to uncover hidden pollutants in real-world water systems.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.<h4>In this conversation, we cover:</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>Video Transcription</h3><section><div><div><div><div><div><div>Persistent organic pollutants such as polychlorinated biphenyls (PCBs) 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.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.Although PCBs are considered “legacy pollutants” 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.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 liquid–liquid extraction 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.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.For instrumental determination, the study utilized gas chromatography coupled with electron capture detection (GC-ECD) 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 recoveries, which ranged from approximately 85% to 114%, and signal-to-noise-based determination of detection limits.The study further examined seasonal variations in PCB concentrations, revealing higher levels during the wet season. 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 toxic equivalency values (TEQs), converting mixtures of PCB congeners into biologically meaningful toxicity estimates comparable to dioxin toxicity metrics.Beyond environmental monitoring, Oloy highlights broader research interests focused on pollutant remediation and sustainable environmental protection. 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.</div></div></div></div></div></div></section><blockquote>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.</blockquote><blockquote><h4>Concentrating on Chromatography Podcast</h4>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!You can find Concentrating on Chromatography Podcast in podcast apps:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://open.spotify.com/show/1wZg67rCjoGju4yhqxI3tL">Spotify</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podcasts.apple.com/tz/podcast/concentrating-on-chromatography/id1788429185">Apple podcast</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podscan.fm/podcasts/concentrating-on-chromatography">podscan</a></li></ul>and on <a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/@ChromatographyTalk/videos">YouTube channel</a></blockquote>

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

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Organomation, founded in 1959, designs and manufactures high-quality nitrogen evaporators and extraction systems. Known for innovation and durability, their lab instruments are used globally for efficient sample preparation with strong customer support.

Organomation

Wasson Pressurized Liquid Auto-sampler (LS100B)

Wasson-ECE Liquid Auto-Sampler (LS100B) offers laboratory automation for pressurized liquid samples such as liquefied petroleum gas (LPG) and natural gas liquids (NGL).

Wasson-ECE Liquid Auto-Sampler (LS100B) offers laboratory automation for pressurized liquid samples such as liquefied petroleum gas (LPG) and natural gas liquids (NGL).
The LS100B uses inert gases to maintain pressure so that the sample remains in the liquid state at ambient temperature as it passes to the GC for analysis.
The LS100B accommodates up to nine sample cylinders with 1/4 inch tube, VCO, or quick connect fittings. These fittings hold the sample cylinders vertically, ensuring that samples are drawn from the bottom of the cylinder.
<h4>Pressurized Liquid Auto-sampler Features</h4>
<ul>
<li>Purges automatically with carrier gas between each sample run
</li>
<li>Remote-starts the GC and the data recording software such as ChemStation™
</li>
<li>Adds a date/time stamp to all samples
</li>
<li>Holds up to nine 3.5 inch / 8.9 cm diameter sample cylinders
</li>
<li>Works with standard open or floating-piston sample cylinders
</li>
<li>Pauses automatically when it detects that the GC is not running or not ready
</li>
<li>Can interrupt the scheduled sample sequence to process a priority sample
</li>
</ul>

Wasson Dynamic Blender for GC (DB302)

The Dynamic Blender is a portable gas blending device that dilutes a sample or a certified standard with a matrix gas of choice.

Gas chromatography (GC) analyses often include trace level detection of components requiring samples or standards at low concentrations. Some analytes are expensive or difficult to purchase at low levels due to reactivity, adsorption, or high molecular weight. Analyses may also cover a wide concentration range, requiring multi-point calibration.
The Wasson-ECE Dynamic Blender (DB302) provides a simple solution to these calibration needs. The Dynamic Blender is a portable gas blending device that dilutes a sample or a certified standard with a matrix gas of choice. One certified standard with concentrations at the upper limit of the desired calibration curve can be diluted to a lower level (&gt;2 orders of magnitude lower) to create a full calibration curve.
An inert flow path and heated bridge eliminate adsorption and condensation problems when blending gas standards that include sulfur, nitrogen, and other reactive compounds.
An on-board flow controller allows the diluent gas flow to be controlled digitally and samples are fed directly to a gas chromatograph. The Dynamic Blender eliminates the need to purchase and store multiple gas cylinders and provides an easy, cost-effective solution for gas phase calibration needs.
<h4>Dynamic Blender Features</h4>
<ul>
<li>Approximately 100 pre-programmed pure diluent gases and mixtures and twenty user configurable diluent mixture slots.
</li>
<li>Maximum Diluent Pressure of 100 psi (leak tested to this pressure)
</li>
<li>Maximum Temperature of 150°C (operation verified at this temp.)
</li>
<li>Mass Flow Controller Range of 10 – 500 cc/min
</li>
<li>7 μm in-line gas filters (treated) are also provided
</li>
<li>Specially passivated tubing for trace reactive compounds (sulfurs, oxygenates, etc.)
</li>
</ul>
*This treatment is not suitable for samples with pH &gt; 8.0, so please notify your sales representative if you have high pH samples.

Wasson Variable Pressure Sampler (VPS)

The Variable Pressure Sampler (VPS) works in two ways to ensure the precision and accuracy of gas results.

The Variable Pressure Sampler (VPS) works in two ways to ensure the precision and accuracy of gas results. The first method is pressure correction, used to create uniform pressure among all injected samples and the calibration blend. The second method is multi-point calibration, which can deliver a calibration blend to the GC at various pressures.
The VPS pressure correction system performs a multi-step process that ensures samples and calibration blends are at uniform pressures when they are injected.
First, when the calibration blend is run through the GC, the VPS measures and stores the pressure of the calibration blend at the time of injection. Then, as each sample is injected at the stored pressure, the VPS adjusts the pressure of the sample to match the pressure of the calibration blend.
The inject pressure of the sample is reported to Agilent Technologies OpenLAB ChemStation software so calculations and quality control operations can be performed.
Using the VPS, calibration samples can be run at various pressures from a single standard. This decreases overall lab costs while ensuring greater accuracy in results. The multi-point calibration function allows testing for signal linearity at different pressures. With this feature, the user can easily pinpoint the range of pressures which generates the most accurate and meaningful results from the calibration standard.
<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Wassson_Variable_Pressure_Sampler_VPS_linearity_77314725d6.jpg" alt="Wassson: Variable Pressure Sampler (VPS) - linearity"/>

Wasson LPG Vaporizer (1107)

The LPG Vaporizer uses an innovative, proprietary technique to vaporize liquid samples for injection in an existing GC system.

The LPG Vaporizer uses an innovative, proprietary technique to vaporize liquid samples for injection in an existing GC system. This convenient laboratory system offers flexibility and accuracy for both gas and liquid samples.
The LPG Vaporizer is more convenient than a typical liquid sample valve with more accurate results. All liquid samples are vaporized and run at a constant pressure, eliminating sample density changes that cause errors in liquid phase samples. This ensures sharp, easy-to-read peaks for all samples.
The LPG Vaporizer is built with specially passivated parts for analyzing trace reactive analytes such as sulfurs and oxygenates.
Wasson-ECE&#39;s unique, proprietary vaporization technique produces an even and accurate gas sample. Other vaporizers use tubing with a large volume, causing samples to fractionate when vaporized. This can lead to incomplete sample analysis. The LPG Vaporizer controls the injection volume so that all elements in the liquid sample are vaporized and sent to the GC simultaneously, producing a complete and accurate analysis of the sample.
<h4>LPG Vaporizer Features</h4>
<ul>
<li>Inject liquid and gas samples with a single valve
</li>
<li>High sample throughput
</li>
<li>Purging technique reduces cross-contamination
</li>
<li>Ability to stop sample flow to the GC at any time
</li>
<li>Controlled injection volume
</li>
<li>4 ft. heated bridge from vaporizer to customer&#39;s GC sample valve to prevent sample re-condensing
</li>
</ul>

EST Analytical CENTURION Water/Soil Purge and Trap Autosampler

The EST Analytical CENTURION delivers reliable purge and trap VOC analysis with high sample capacity, robust design, and intuitive software for water and soil testing.

The CENTURION is a flexible purge and trap autosampler available in two configurations: a combined water/soil system or a water-only system. Purge and trap technology enables the extraction of volatile organic compounds (VOCs) from samples by purging them with an inert gas onto a sorbent trap, where they are concentrated and subsequently transferred into instruments such as GC or GC/MS for precise analysis.Designed for laboratories worldwide, the CENTURION enhances throughput, ensures reliable performance, and simplifies VOC sample preparation. With robust engineering and intuitive software, it helps analysts and technicians maximize efficiency and maintain consistent results across demanding workflows.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/EST_Analytical_CENTURION_Water_Soil_Purge_and_Trap_Autosampler_3_3cb7b848e1.jpg" alt="EST Analytical: CENTURION Water/Soil Purge and Trap Autosampler" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_EST_Analytical_CENTURION_Water_Soil_Purge_and_Trap_Autosampler_3_3cb7b848e1.jpg 141w," sizes="100vw" width="704" height="778"><h4>Key Features</h4><h5>Reliable Purge &amp; Trap Performance</h5><ul><li>Proven XYZ autosampler design with heavy-duty rails for stability</li><li>Separate needles for water and soil samples to prevent cross-contamination</li><li>Internal standard addition with &lt;3% RSD precision</li><li>Engineered for consistent results right from the start</li></ul><h5>Optimized Productivity</h5><ul><li>Supports up to 100 water samples and 90 soil samples</li><li>Single calibration method accommodates both water and soil matrices</li><li>Integrated optical sensors reduce vial and syringe handling errors</li><li>Includes methanol extraction capability and optional pH detection</li></ul><h5>User-Friendly Operation</h5><ul><li>Unique software for prioritizing urgent/rush samples</li><li>400:1 dilution capability for flexible workflows</li><li>Intuitive control software accessible from any PC in the lab</li><li>Programmable soil needle depth to minimize clogging</li><li>Automated hot water rinse cycle to reduce carryover</li></ul><h4>Technical Specifications</h4><ul><li>Configurations: Water/Soil purge &amp; trap system or Water-only system</li><li>Sample Capacity: 100 water samples / 90 soil samples</li><li>Dilution Capability: Up to 400:1</li><li>Carryover Control: Programmable hot water rinse</li><li>Additional Functions: Methanol extraction, pH detection (optional)</li><li>Software: Intuitive, PC-based control with rush sample handling</li></ul>

EST Analytical EVOLUTION 2 Purge and Trap Concentrator

The EST Analytical EVOLUTION 2 concentrator delivers EPA-compliant VOC analysis with patented flow control, faster cycles, and compact, user-friendly design.

Developed with direct input from laboratory users, the EVOLUTION 2 purge and trap concentrator combines USEPA compliance with high productivity, stability, and simplified maintenance. Designed for reliable VOC concentration, it delivers superior performance and minimizes downtime, making it an ideal solution for today’s demanding laboratory environments.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/EST_Analytical_EVOLUTION_2_Purge_and_Trap_Concentrator_2_b841c750b8.jpg" alt="EST Analytical: EVOLUTION 2 Purge and Trap Concentrator" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_EST_Analytical_EVOLUTION_2_Purge_and_Trap_Concentrator_2_b841c750b8.jpg 129w," sizes="100vw" width="570" height="689"><h4>Key Features</h4><h5>Engineered for Accuracy</h5><ul><li>Unique 8-port valve pathway ensures advanced moisture control</li><li>Enhanced ventilation system shortens trap cool-down times</li><li>Patented Desorb Pressure Control (DPC) for improved chromatography results</li><li>Patented Desorb Flow Control (DFC) optimized for USEPA 524 methods</li></ul><h5>Maximized Productivity</h5><ul><li>Faster trap cooling reduces cycle times</li><li>Automated signaling boosts sample throughput</li><li>Innovative flow path design minimizes sample carryover</li><li>Proven Moisture Reduction Trap (MORT) technology</li><li>Dual-mode functionality for higher output and flexibility</li></ul><h5>User-Friendly Operation</h5><ul><li>Intuitive, advanced software interface</li><li>Quick-access design with removable covers for trap maintenance</li><li>Compact footprint saves valuable bench space</li></ul><h4>Technical Specifications</h4><ul><li>Compliance: USEPA 524 and related VOC methods</li><li>Sample Pathway: 8-port valve with advanced moisture control</li><li>Patented Features: DPC (Desorb Pressure Control), DFC (Desorb Flow Control), MORT (Moisture Reduction Trap)</li><li>Productivity: Dual-mode operation, automated cycle optimization</li><li>Design: Compact footprint, easy maintenance access</li></ul>

EST Analytical AS120 Autosampler

The AS120 GC Autosampler boosts productivity with dual-injector support, 120/200 vial capacity, programmable injections, and seamless GC/GC-MS integration.

The AS120 Autosampler is a cost-effective, fully electric XYZ sampler for GC and GC/MS applications. Driven by stepper motor technology, it combines modern engineering with user-friendly operation, meeting both routine and advanced analytical needs. With high-capacity sample trays, flexible injection modes, and reliable performance, the AS120 ensures laboratories can boost productivity while maintaining precise, consistent results.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/EST_Analytical_AS_120_Autosampler_7cc5a79884.jpg" alt="EST Analytical: AS120 Autosampler" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_EST_Analytical_AS_120_Autosampler_7cc5a79884.jpg 203w," sizes="100vw" width="1056" height="812"><h4>Key Features</h4><h5>Maximum Productivity</h5><ul><li>Dual-injector capability for maximum GC throughput</li><li>Automated injector alignment—no manual adjustments required</li><li>Variable injection rate tailored to injector type and analytical method</li><li>Choice of 120- or 200-position sample trays, easily removable for quick loading</li></ul><h5>Durable, Flexible Engineering</h5><ul><li>Robust XYZ syringe mechanism accesses vials, solvents, and standards with precision</li><li>Adjustable parameters: injection volume, speed, dwell times, and solvent flush options</li><li>Supports multiple methods per sequence and dual-column operation</li><li>Fully programmable via intuitive keypad interface</li></ul><h5>Hassle-Free Operation</h5><ul><li>Compatible with screw-cap and crimp-top septum vials</li><li>Simple GC integration with standard remote I/O signals and RS-232 communication</li><li>Quick mounting with keypad-based syringe/injector alignment</li><li>Priority manual sample feature enables urgent “RUSH” sample handling</li></ul><h4>Technical Specifications</h4><ul><li>Drive: All-electric, stepper motor XYZ system</li><li>Capacity: 120 or 200 vial tray options</li><li>Compatibility: GC and GC/MS systems with standard I/O and RS-232 interface</li><li>Injection Modes: Variable rate, programmable volume, dual-injector support</li><li>Control: Keypad-driven menu with multiple method programming</li><li>Sample Handling: Screw-cap or crimp-top septum vials</li></ul>

EST Analytical FLEX 2 Robotic Sampling Platform

The FLEX 2 autosampler streamlines GC/GC-MS workflows with liquid, headspace, and SPME capability, MTX tool change, and Prep Ahead for faster, more reliable VOC analysis.

The FLEX 2 is a versatile GC autosampler designed to handle both sample preparation and sample introduction for GC and GC/MS analysis. Supporting liquid injection, headspace, and SPME, it delivers exceptional accuracy and reproducibility. Its Prep Ahead function improves efficiency by allowing sample preparation during ongoing GC runs, maximizing system utilization and throughput.<img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/EST_Analytical_FLEX_2_Robotic_Sampling_Platform_3_853e02f151.jpg" alt="EST Analytical: FLEX 2 Robotic Sampling Platform" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_EST_Analytical_FLEX_2_Robotic_Sampling_Platform_3_853e02f151.jpg 168w," sizes="100vw" width="628" height="584"><h4>Key Features</h4><h5>Flexible Sample Preparation with Multi Tool Change (MTX)</h5><ul><li>Automated Multi Tool Change (MTX) enables seamless switching between tools</li><li>Enhances laboratory productivity, accuracy, and safety by reducing manual prep errors</li><li>Supports dilution, reagent addition, and internal standard spiking with precision</li><li>Can operate as a benchtop preparation station for derivatization and extraction steps</li></ul><h5>Liquid Injection Capabilities</h5><ul><li>Injection range: 0.5–10 μL (standard syringe) or 50–500 μL (optional large-volume syringe)</li><li>Supports both standard and large-volume injections (up to 500 μL)</li><li>Programmable injection speed control, from ultra-fast to very slow</li><li>Optional cooled trays available for temperature-sensitive samples</li></ul><h5>Headspace Sampling</h5><ul><li>Injection range: 100–2500 μL (2.5 mL syringe), 100–1000 μL (1.0 mL syringe), or 500–5000 μL (5.0 mL syringe)</li><li>Offers both orbital and oscillating agitation to improve sample consistency</li><li>Six heated vial positions for 2, 10, or 20 mL vials</li><li>Temperature range: ambient to 200 °C</li><li>Shaking: orbital (120–750 rpm) or oscillation (190 Hz)</li></ul><h5>Automated SPME</h5><ul><li>Compatible with both traditional and direct immersion SPME methods</li><li>Heated conditioning station:<ul><li>Fiber: ambient to 350 °C</li><li>Needle: ambient to 150 °C</li><li>Sweep gas port for conditioning</li></ul></li><li>Heated mixing station: ambient to 150 °C, mixing speeds 380–725 rpm</li></ul><h5>Efficiency &amp; Throughput</h5><ul><li>Prep Ahead function allows ongoing sample prep during GC runs</li><li>Fully automates switching between liquid injection, headspace, and SPME with MTX</li><li>Reduces manual workload and preparation errors while improving reproducibility</li></ul><h4>Technical Specifications</h4><ul><li>Compatible Systems: GC and GC/MS platforms</li><li>Injection Modes: Liquid (0.5–500 μL), Headspace (100–5000 μL), SPME (traditional &amp; direct immersion)</li><li>Temperature Ranges: Headspace up to 200 °C, SPME fiber up to 350 °C, SPME needle up to 150 °C</li><li>Agitation: Orbital (120–750 rpm) and oscillating (190 Hz)</li><li>Capacity: Six heated vial positions for 2, 10, or 20 mL vials</li><li>Automation: Multi Tool Change (MTX), Prep Ahead function</li></ul>

EST Analytical LGX-50 for Methane in Water

The EST LGX-50 automates RSK-175 dissolved gas testing in water, boosting throughput, ensuring ASTM/EPA compliance, and reducing manual sample preparation errors.

The LGX-50 automates the preparation of water samples for headspace analysis of dissolved gases such as methane, ethane, and ethene. Traditionally, RSK-175 testing has been labor-intensive and time-consuming, requiring manual vial preparation. The LGX-50 eliminates this step, streamlining workflows and ensuring compliance with EPA Method 5035 and ASTM D8028. By automating dissolved gas extraction, laboratories can boost throughput, reduce errors, and deliver more consistent results for shale gas and environmental testing.<h4>Key Features</h4><h5>Maximized Productivity</h5><ul><li>Fully automates RSK-175 sample processing</li><li>ASTM D8028 compliant for dissolved gas testing</li><li>Holds up to 50 samples for high-throughput operation</li><li>Optical sensors prevent vial misplacement and syringe/elevator errors</li><li>Robust XYZ design ensures reliability and consistent performance</li></ul><h5>Simplified Operation</h5><ul><li>Intuitive, user-friendly software designed for quick setup and operation</li><li>Remote access functionality allows labs to monitor sample progress via the server</li><li>Reduces manual preparation steps, increasing accuracy and reproducibility</li></ul><h4>Technical Specifications</h4><ul><li>Compliance: EPA Method 5035, ASTM D8028</li><li>Capacity: Up to 50 samples per batch</li><li>Target Compounds: Methane, ethane, ethene, and other dissolved gases in water</li><li>Automation: XYZ robotic design with optical sensors for error prevention</li><li>Software: Intuitive, remote-access capable interface</li></ul>

Thermo Scientific ITEX Dynamic Headspace Tool 

Thermo Scientific ITEX Dynamic Headspace Tool enables automated VOC enrichment with ppt sensitivity using dynamic headspace for GC workflows.

The Thermo Scientific™ ITEX Dynamic Headspace Tool is an autosampler accessory for the<a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/63"> TriPlus™ RSH </a>and <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/422">TriPlus RSH SMART</a> Autosamplers designed for the enrichment of volatile organic compounds (VOCs) using dynamic headspace technology. It enables ppt-level sensitivity and allows sample enrichment to be easily integrated into an automated gas chromatography (GC) workflow.<ul><li>The ITEX-DHS technique uses a gas-tight syringe to collect the headspace and a microtrap inside the syringe needle to efficiently trap and concentrate VOCs through repeated syringe strokes.&nbsp;</li><li>Sensitivity can be scaled according to the number of strokes, making the method suitable for both low- and high-concentration samples.&nbsp;</li><li>The system is designed for easy method set-up with only a few parameters, simple access to the trap, and excellent robustness for long-term operation.&nbsp;</li><li>A closed system removes any risk of breakthrough.&nbsp;</li><li>Independent trap desorption temperature and flow control maximize desorption efficiency without affecting GC inlet settings.&nbsp;</li><li>When used with the TriPlus RSH SMART autosampler, the SMART gas-tight syringe enables automatic usage traceability.&nbsp;</li><li>The entire automated workflow can be fully controlled through <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/76">Thermo Scientific™ Chromeleon™ CDS</a>.</li></ul>For VOC analysis in many liquid and solid samples, ITEX offers a valuable alternative to classical enrichment techniques by combining ease of use with robust performance.<h3>Key features</h3><ul><li>Dynamic headspace VOC enrichment with ppt-level sensitivity</li><li>Easy integration into automated GC workflows</li><li>Gas-tight syringe and microtrap in the needle for efficient analyte concentration</li><li>Scalable sensitivity based on the number of syringe strokes</li><li>Easy method set-up with few parameters</li><li>Robust design for long-term operation</li><li>Closed system minimizing the risk of breakthrough</li><li>Independent desorption temperature and flow control</li><li>Automatic usage traceability with SMART gas-tight syringe</li><li>Full control through Chromeleon CDS</li></ul><h3>Technical specifications</h3><ul><li>Description: includes SMART gas-tight syringe, focusing trap, built-in trap heating, cooling fan, and trap cleaning capability</li><li>Application: enrichment of volatile organic compounds (VOCs)</li><li>Compatible equipment: <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/63">TriPlus RSH</a> and <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/422">TriPlus RSH SMART </a>Autosamplers</li><li>Type: autosampler accessory</li><li>Unit size: each</li></ul>

Products from category Sample injection - page 1

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