<blockquote><p>Welcome back to the topic of protecting your GC column! <strong>If you missed </strong><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/article/6766"><strong>part 1</strong></a> or would like to refresh your knowledge, find further tips on GC column protection <a target="_blank" rel="noopener noreferrer" href="https://www.phenomenex.com/knowledge-center/gc-knowledge-center/protecting-your-gc-column-pt1-tech-tip-en-1025"><strong>here</strong>.</a></p></blockquote><p><strong>Protecting your GC column and instrument components from exposure to dirty samples or contaminants is important. Non-volatile or high molecular weight components can contaminate the stationary phase, causing poor peak resolution, lower accuracy, and poor column lifetime. Cutting off the damaged portion of column tubing will often restore your column’s performance, but over time performance will degrade to a point where the column can no longer be used. If you are experiencing rapid degradation of column performance, there are several simple ways to help protect your column and increase its lifetime.</strong></p><h3><strong>Use A Liner With Wool</strong></h3><p>The liner is the first line of defense for your column, and the style you choose can make a big impact in how much contamination gets onto the column. The easiest thing to do is to add a small amount of silanized glass wool to a liner, which traps the non-volatile compounds and prevents them from entering directly into the column.&nbsp;</p><blockquote><p><strong>Caution: </strong>glass wool can also add activity for acids, bases, and pesticides. Crushing the glass wool can expose undeactivated glass and free silanols (-OH groups) even if the wool has been deactivated. This leads to increased activity, so pre-packed liners, rather than self-packed ones are highly recommended to avoid reproducibility issues.</p></blockquote><p>In addition to choosing a liner with wool, ensure that your liner (and other system consumables) are free of contaminant build-up that may form over time. Septum cores and other particulates that remain can become trapped in the wool and are sometimes difficult to spot. Regularly replace the liner (and other system consumables as needed) to reduce troubleshooting and maintenance.</p><h3><strong>Bake Out Your Column</strong></h3><p>The easiest way to reduce column contamination is to add a short, high temperature bake-out at the end of your standard GC method. This bake out helps remove high boiling contaminants that would otherwise remain in the column and cause damage. To bake out, the final oven temperature needs to be set high enough to ensure elution of these compounds, but not so high as to cause thermal damage. This can be done either isothermally, or more commonly, via an oven ramp until the last components elute from the column. Caution: NEVER exceed the upper temperature limits of your column. DO NOT exceed more than fifteen minutes at the upper isothermal temperature limit specified for the column.</p>

How to Protect Your GC Column - Part 2

<p>🎤 <strong>Presenter</strong>: Christopher Freye (Los Alamos National Laboratory)</p><p>💾 <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/O_1_Freye_10783a9cf3.pdf"><strong>PDF presentation</strong></a></p><h3><strong>Abstract</strong></h3><p><strong>Two-dimensional gas chromatography (</strong><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?instrumentationItems=2"><strong>GC×GC</strong></a><strong>) when coupled with mass spectrometry (MS) especially high-resolution mass spectrometry (HRMS) provides the ideal technique to discover minute chemical changes. However, GC×GC analyses result in extremely large datasets (GBs of information) wherein the statistically significant chemical changes are buried within the background chemical matrix. To combat these issues, many chemometric techniques have been developed or applied. Recently we introduced a new chemometric technique for GC-MS termed alteration analysis (ALA) and two-dimensional correlation (2DCOR) which can be used to discover statistically significant chemical changes across a series of chromatograms and understand the relationship between the statistically relevant changes. ALA generates three sets of information, the basic alteration map (BAM) which is the magnitude of the change, the synchronous alteration map (SAM) which describes the linear change, and the asynchronous alteration map (AAM) which describes the non-linear change. 2DCOR can then be used to understand the relationship between the chemical changes but 2DCOR can also resolve the sequence of the changes. A workflow for GC×GC-MS will be demonstrated. Special attention will be given to what differentiates the GC×GC work flow from GC for both the ALA and 2DCOR.</strong></p><h3><strong>Video Transcription</strong></h3><p>The presentation focuses on how <strong>advanced mathematical and chemometric methods</strong> can be used to extract meaningful information from <strong>highly complex chromatographic data</strong>, especially in <strong>multidimensional chromatography coupled with mass spectrometry (GC×GC-MS, LC-MS)</strong>.</p><h4><strong>Why traditional data analysis falls short</strong></h4><p>Modern multidimensional chromatography generates <strong>extremely large datasets</strong>, often containing <strong>billions of data points</strong>. Visual inspection, peak tables, or classical identification-based workflows are impractical—especially when:</p><ul><li>Samples are highly complex (e.g. petroleum, metabolomics, high explosives)</li><li>Most compounds are <strong>unknown unknowns</strong></li><li>The key question is not <i>what</i> the compounds are, but <strong>whether samples differ and how</strong></li></ul><p>Program managers and decision-makers are primarily interested in <strong>detecting statistically significant changes</strong>, not exhaustive compound identification.</p><h4><strong>Introduction of Alteration Analysis (ALA)</strong></h4><p>To address subtle, trend-based changes across series of chromatograms, the speaker introduces <strong>Alteration Analysis (ALA)</strong>, a chemometric approach adapted from spectroscopy and applied to chromatography.</p><p>ALA quantitatively evaluates how <strong>individual data points change across multiple samples</strong>, allowing detection of:</p><ul><li>Extremely subtle trends</li><li>Overlapping peaks</li><li>Changes hidden in noise or baseline interference</li></ul><p>Key ALA outputs include:</p><ul><li><strong>BAM (Basic Alteration Map):</strong> magnitude of change</li><li><strong>SAM (Systematic Alteration Map):</strong> linear changes</li><li><strong>AM (Alteration Map):</strong> nonlinear changes</li></ul><p>Even changes as small as <strong>1% per sample</strong> can be detected reliably, including peaks that are heavily overlapped.</p><h4><strong>Beyond detection: understanding relationships with 2D Correlation</strong></h4><p>Once statistically significant changes are identified, <strong>two-dimensional correlation analysis (2D-COR)</strong> is used to understand <strong>relationships between changing compounds</strong>, including:</p><ul><li>Whether compounds are correlated or anti-correlated</li><li>The <strong>sequence of changes over time</strong> (which changes happen first)</li></ul><p>This is especially critical for <strong>degradation and aging studies</strong>, where intermediate species may appear and disappear before the final state—information that traditional methods like Fisher ratio or PCA often miss.</p><h4><strong>Solving GC×GC challenges with tiling</strong></h4><p>GC×GC data introduces additional challenges due to:</p><ul><li>Peak misalignment</li><li>Exponential data growth during correlation calculations</li></ul><p>The presenter explains how <strong>tile-based approaches</strong> reduce data dimensionality, overcome alignment issues, and make ALA and 2D correlation computationally feasible—even for massive GC×GC-MS datasets.</p><h4><strong>Real-world application: explosive aging studies</strong></h4><p>The methodology was applied to <strong>aging and decomposition of high explosives</strong>, where:</p><ul><li>Over <strong>250 chemical changes</strong> were identified</li><li>Many intermediate species would have been missed using traditional comparisons</li><li>ALA combined with 2D correlation enabled reconstruction of <strong>degradation pathways</strong></li><li>The most significant change was <strong>not necessarily the first change</strong>, a critical insight for risk assessment and stability studies</li></ul><h4><strong>Key takeaway</strong></h4><p>By combining <strong>Alteration Analysis and 2D correlation</strong>, the approach:</p><ul><li>Detects statistically guaranteed chemical changes</li><li>Handles subtle, overlapped, and noisy signals</li><li>Determines <strong>magnitude, type, interrelationships, and order of changes</strong></li><li>Shifts chromatographic data analysis from identification-driven to <strong>decision-driven</strong></li></ul><p>This math-driven workflow enables faster, more reliable interpretation of complex chromatographic datasets and provides actionable insights for applications such as <strong>explosive aging, pharmaceutical degradation, and complex mixture analysis</strong>.</p><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>

Discovery analysis for GCxGC trends using alteration and 2D correlation (Chris Freye, MDCW 2026)

<p><strong>Our Library never stops expanding. What are the most recent contributions to LabRulezGCMS Library in the week of 9th February 2026? Check out new documents from the field of the gas phase, especially GC and GC/MS techniques!</strong></p><blockquote><p><span style="font-size:20px;">👉 </span><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library"><span style="font-size:20px;"><strong>SEARCH THE LARGEST REPOSITORY OF DOCUMENTS ABOUT GCMS AND RELATED TECHNIQUES</strong></span></a></p></blockquote><blockquote><p><strong>👉 Need info about different analytical techniques?</strong> Peek into <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/library"><strong>LabRulezLCMS</strong></a> or <a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/library"><strong>LabRulezICPMS</strong></a> libraries.</p></blockquote><p>This week we bring you technical note by <strong>Agilent Technologies, </strong>presentation by<strong> MDCW / University of Copenhagen </strong>and<strong> </strong>application notes by<strong> Shimadzu </strong>and<strong> Thermo Fisher Scientific!</strong></p><h3><strong>1. Agilent Technologies: What Causes Spots on </strong><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?instrumentationItems=19&amp;manufacturerItems=1&amp;search=PLOT"><strong>PLOT Columns</strong></a><strong>? Will It Affect the Performance of the Column?</strong></h3><ul><li>Technical note</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/te_what_causes_spots_plot_columns_affecting_performance_5994_8775en_agilent_3b7180512a.pdf"><strong>Full PDF for download</strong></a></li></ul><p>Spots on porous layer open tubular (PLOT) columns are caused by small voids in the stationary phase coating inside the tube. These spots are areas where there is an uneven coating or lack of phase. It is normal to find some voids in the phase coating of PLOT columns. The stationary phase in PLOT columns is an opaque, solid, and porous material. In many Agilent PLOT columns such as the GS-Alumina phases, molecular sieves, porous polymers (Q and U), and the GS-OxyPLOT, the stationary phase is visible as a white powder. For many PLOT columns, the stationary phase fill solution is a viscous suspension of particles that are less than 10 microns in diameter. The phase is coated using a dynamic process in which a plug of fill solution is pushed through the tubing, and the plug’s speed and viscosity determines the thickness of the stationary phase layer. Once the PLOT’s stationary phase is deposited, it is held in place by electrostatic charge, chemical interactions between particles, and/or binding agents. In wall‑coated open tubular (WCOT) columns, stationary phases such as polysiloxanes or polyethylene glycols are immobilized by chemical bonding to the glass surface and cross-linking between polymer strands. Because this type of bonding and cross‑linking is not possible with PLOT phases, the result is a stationary phase layer that is both fundamentally different and inherently less stable in PLOT columns than in WCOT&nbsp;columns.</p><h3><strong>2. MDCW / University of Copenhagen: One-shot tensor decomposition of full-scale GC×GC-VUV datasets for resolving petrochemical groups</strong></h3><ul><li>Presentation</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/O_17_Schneide_67c8ff7866.pdf"><strong>Full PDF for download</strong></a></li></ul><p>The presentation introduces a novel <strong>all-samples-at-once, shift-invariant tri-linear tensor decomposition approach</strong> for the analysis of full-scale <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?search=GC%C3%97GC-VUV"><strong>GC×GC-VUV</strong></a><strong> datasets</strong>, aimed at resolving and quantifying petrochemical groups. Traditional template-based or pixel-based methods struggle with retention-time shifts and co-eluting compounds, often requiring manual intervention and prior chemical knowledge. The proposed approach leverages the intrinsic low-rank structure of GC×GC-VUV data to enable robust, automated group-level analysis across multiple samples simultaneously.</p><p>At the core of the method is a <strong>shift-invariant tri-linear model</strong>, conceptually related to PARAFAC and multivariate curve resolution, but extended using frequency-domain (FFT-based) modeling to explicitly account for chromatographic peak shifts. By decomposing the entire dataset in one step, the model provides <strong>accurate estimates of peak landscapes, VUV spectra, and relative peak areas</strong>, while remaining agnostic to retention-time variability. Importantly, the approach requires only a small number of tunable parameters, making it practical for routine use.</p><p>The method was demonstrated on a <strong>case study involving 14 petrochemical gas-oil samples</strong>, including straight-run, hydrotreated, hydroconverted, coker, and light cycle oils. Extracted VUV spectra showed excellent agreement with reference spectra from a VUV spectral database, enabling confident assignment of components to chemical groups such as saturates, olefins, and mono- to poly-aromatics. Quantitative results exhibited <strong>high repeatability (RSD typically 3–9%)</strong> and strong correlation with established template-based reference methods.</p><p>Overall, the work demonstrates that <strong>one-shot, shift-invariant tensor decomposition</strong> provides a powerful and scalable alternative to conventional GC×GC data-analysis strategies. By combining chemical interpretability, robustness to chromatographic shifts, and strong quantitative performance, the approach opens new opportunities for automated, high-confidence group-level analysis of complex petrochemical samples and beyond.</p><h3><strong>3. Shimadzu: Py-Screener Ver. 3: Simultaneously Test for Substances Regulated Under RoHS, TSCA, and POPs</strong></h3><ul><li>Application note</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/an_01_00949_en_4754e50164.pdf"><strong>Full PDF for download</strong></a></li></ul><h5><strong>User Benefits</strong></h5><ul><li>In just one analysis, <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?manufacturerItems=3&amp;search=Py-Screener"><strong>Py-Screener</strong></a> Ver. 3 can determine levels of phthalate esters, brominated flame retardants (PBBs, PBDEs), PIP (3:1), UV-328, dechlorane plus (DP), short-chain chlorinated paraffins (SCCPs), and medium-chain chlorinated paraffins (MCCPs).&nbsp;</li><li>It can also test for SCCPs and MCCPs by electron ionization (EI) instead of negative chemical ionization (NCI).&nbsp;</li><li>PIP (3:1), UV-328, DP, and SCCPs and MCCPs can be screened without the need for corresponding reference materials.</li></ul><p>Countries and regulatory bodies worldwide are introducing increasingly stringent regulations on the chemical substances used in electronic devices and industrial products. The RoHS Directive and REACH regulations in the EU, the Toxic Substances Control Act (TSCA) in the USA, and the Stockholm Convention on Persistent Organic Pollutants (POPs) are also targeting an increasingly broad range of substances. Therefore, manufacturers are required to accurately identify regulated substances in their products and comply with each regulation. While Py-Screener Ver. 2 can screen for seven phthalate esters and brominated flame retardants, including substances regulated under the RoHS Directive, version 3 can also screen for PIP (3:1), which is regulated under the TSCA, as well as UV328, DP, and SCCPs and MCCPs , which are regulated under the Stockholm Convention on POPs. A list of supported substances isshown in Table 1. This article introduces the simultaneous analysis of multiple regulated substances and a case study of testing specific regulated substances in samples, using Py-Screener Ver. 3.</p><h4><strong>Analysis Process</strong></h4><p>Py-Screener Ver. 3 can determine levels of phthalate esters and brominated flame retardants contained in products in accordance with the international analytical standards IEC62321-8 and IEC62321-3-3. It can also test for specific regulated substances (Table 1) under the same conditions and in the same analysis. In this test, background intensity and instrument sensitivity (S/N) were verified before analyzing samples. These parameters are prescribed by IEC62321-8 to ensure the accuracy of the methods used. Background intensity and instrument sensitivity were determined using a reference material (PN: 225-31003- 91) *1 that consisted of a plastic sheet that was spiked with seven phthalate esters. The results met the criteria for both parameters.</p><p>The testing workflow is shown in Fig. 1. Before testing samples, calibration curves were prepared by analyzing the 1000 mg/kg phthalate ester reference material and polypropylene spiked with brominated flame retardants (ERM-EC591). A hole puncher was used to punch out two discs at a time of the phthalate ester reference material, and a cutter was used to obtain pieces of the other materials. Each material was weighed in a sample cup for analysis. During the analysis of samples, phthalate esters and some of the regulated brominated flame retardants were quantitated using a one-point calibration curve. The remaining brominated flame retardants and specific regulated substances were quantitated using the correction factor database*2 that is included with Py-Screener Ver. 3.</p><h4><strong>Conclusion</strong></h4><p>Py-Screener Ver. 3 successfully determined in samples the concentrations of the regulated substances PIP (3:1), UV-328, DP, and SCCPs and MCCPs. Normally, SCCP and MCCP levels are tested using NCI, but Py-Screener Ver. 3 uses EI. This enables it to test for not only SCCPs and MCCPs but also phthalate esters, brominated flame retardants, and other regulated substances in just one analysis. In addition, by using the relative correction factors linked to DEHP in the phthalate ester reference material, the levels of these regulated substances were determined without the need for the corresponding reference materials. Py-Screener Ver. 3 can also create a screening program that addresses substance restrictions under the RoHS Directive, the US TSCA, and the POPs Convention.</p><h3><strong>4. Thermo Fisher Scientific: Improving low carbon steel production in specialty steel processes</strong></h3><ul><li>Application note</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/prima_pro_process_mass_spectrometer_an1626_7fc840235f.pdf"><strong>Full PDF for download</strong></a></li></ul><p>World crude steel production reached 1,691 million tonnes in 2017, up by 5.3% compared to 2016.1 While much of this capacity is still produced in primary steel processes such as basic oxygen furnaces and electric arc furnaces, the need for refined steel with greater durability and resistance to heat and corrosion has led to the increased use of vacuum degassing processes, such as VOD and RH, in secondary steel production. These processes are able to achieve ultra-low levels of residual carbon, while at the same time retaining desired levels of other alloy materials. If these processes are to achieve the required level of steel product quality, they need fast, continuous gas analysis of the furnace exhaust gas. Without accurate information on the composition of the gas leaving the furnace, any variations in the decarburization process are only detected after the event, resulting in the production of out-of-specification steel.</p><h4><strong>Advantages of mass spectrometry&nbsp;</strong></h4><p>Traditional Non-Dispersive Infra-Red (NDIR) analyzers are used in many conventional steelmaking processes to measure CO and CO<sub>2</sub> , but they can only sample at atmospheric pressure. In vacuum steelmaking the process pressure changes dramatically, typically from atmospheric pressure down to less than 1 mbar, over the 20-30 minutes of the melt. So NDIR analyzers have to sample some distance downstream from the process. Analytical data is updated several minutes after the gas leaves the melt and the control system is forced to operate on historic rather than real-time data.&nbsp;</p><p>Paramagnetic analyzers can be used to measure O<sub>2</sub> , while thermal conductivity analyzers can be used to measure H<sub>2</sub> . These analyzers also suffer from slow response, while the need to operate three different types of analyzers adds to the plant maintenance burden. Moreover, the three analyzers cannot analyze inert gases, so N<sub>2</sub> is calculated by difference, a result that suffers from the sum of the errors of the three analytical techniques.&nbsp;</p><p>Mass spectrometry operates at high vacuum so it is ideal for monitoring vacuum processes. It is also able to monitor all seven components in Table 1 in seconds rather than minutes, ensuring the plant control model is frequently updated with accurate compositional data.</p><h4><strong>Precision of analysis&nbsp;</strong></h4><p>At the heart of the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?manufacturerItems=2&amp;search=Prima+PRO+Mass+Spectrometer"><strong>Thermo Scientific™ Prima PRO Mass Spectrometer</strong></a> (MS) is a magnetic sector analyzer which offers unrivalled precision and accuracy compared with other mass spectrometers. Thermo Fisher Scientific manufactures both quadrupole and magnetic sector mass spectrometers; over thirty years of industrial experience have shown the magnetic sector based analyzer offers the best performance for industrial on-line gas analysis.&nbsp;</p><p>Key advantages of magnetic sector analyzers include improved precision, accuracy, long intervals between calibrations, and resistance to contamination. Typically, analytical precision is between 2 and 10 times better than a quadrupole analyzer, depending on the gases analyzed and complexity of the mixture.&nbsp;</p><p>A unique feature of the Prima PRO magnet is that it is laminated. Its analysis times are similar to a quadrupole analyzer, offering the unique combination of rapid analysis and high stability. This allows the rapid and extremely stable analysis of an unlimited number of user-defined gases. The scanning magnetic sector is controlled with 24-bit precision using a magnetic flux measuring device for extremely stable mass alignment.&nbsp;</p><p>The ion source is an enclosed type for high sensitivity, minimum background interference, and maximum contamination resistance. This is a high-energy (1000 eV) analyzer that offers extremely rugged performance in the presence of gases and vapors that have the potential for contaminating the analyzer. Typical performance specifications for the Prima PRO MS are shown in Table 1. Analytical performance is demonstrated by analyzing the calibration bottle over 1 hour following calibration, with an analysis time of just 6 seconds. Standard deviations measured on the calibration cylinder will be equal to or better than the stated values.</p>

News from LabRulezGCMS Library - Week 07, 2026

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The Multidimensional Chromatography (MDC) Workshop draws experts in this exciting field to share and discuss their research.

The Multidimensional Chromatography Workshop

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Phenomenex is a global technology leader committed to developing novel analytical chemistry solutions that solve the separation and purification challenges of researchers in industrial, government and academic laboratories.

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Thermo Scientific™ EA IsoLink™ IRMS System

With the Thermo Scientific™ EA IsoLink™ IRMS Platform, leverage familiar technology and existing expertise for expanded CNSOH isotope analysis, allowing all elemental analysis on a single platform.

<h3><strong>All your elemental analysis on one platform</strong></h3><p><strong>The EA IsoLink IRMS Platform leverages the existing technological platform of the EA IsoLink IRMS System and FlashSmart EA.</strong></p><h4><strong>More freedom. More flexibility.</strong></h4><p>With the<strong> Thermo Scientific™ EA IsoLink™ IRMS Platform</strong>, you can leverage familiar technology and your staff’s existing know-how for <strong>expanded CNSOH isotope analysis</strong>, enabling you to perform all your elemental analysis on one technological platform. With <strong>different configurations</strong> to choose from, your lab can get the capabilities it needs today, with flexibility for the future. Featuring software- driven automation and scalability to grow as you do.</p><h4><strong>Choose the configuration that’s right for you.</strong></h4><p>The<strong> EA IsoLink IRMS</strong> System is an automated, easy-to-use solution for <strong>isotopic analysis of carbon, nitrogen, sulfur, oxygen and hydrogen</strong> - using bulk samples powered by chromatography-driven technology with high sensitivity on small samples. Available in basic configurations with upgradeability options, this platform offers high throughput and unattended operation, so your lab can get more done in less time.</p><h4><strong>The EA IsoLink IRMS System features:</strong></h4><ul><li><strong>Thermo Scientific™ Flash™ IRMS EA</strong> for sample preparation for IRMS analysis</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/2231"><strong>Thermo Scientific™ ConFlo IV</strong></a> Universal Interface</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/2232"><strong>Thermo Scientific™ DELTA™ Q IRMS</strong></a></li></ul><h4><strong>The FlashSmart EA features:</strong></h4><ul><li><strong>Thermo Scientific™ FlashSmart™ EA</strong> for weight percentage characterization of CNSHO</li></ul><h3><strong>EA IsoLink CN and CN/OH</strong></h3><ul><li>A powerful solution for <strong>C and N, O and H analysis</strong> - upgradeable for <strong>S analysis</strong></li></ul><h3><strong>EA IsoLink OH</strong></h3><ul><li>Offering dedicated<strong> oxygen and hydrogen analysis </strong>- with scalability to expand your capabilities to <strong>C, N and S</strong></li></ul><h3><strong>EA IsoLink CNSOH</strong></h3><ul><li>A fully automated single system for <strong>C, N and S analysis </strong>by flash combustion, and <strong>O and H analysis</strong> by high temperature conversion</li></ul><h4><strong>Connectivity with Thermo Scientific™ IRMS Portfolio</strong></h4><p>The <strong>Flash EA Series</strong> connected to the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/2232"><strong>DELTA Q IRMS</strong></a><strong> </strong>provides precise and sensitive measurement of the isotope fingerprints - <strong>C, N, S, O and H isotopes </strong>- a unique chemical signature of samples. This helps you gain unique insights into food history and origin, as well as environmental pollutants, forensics and geosciences.</p><figure class="image"><img style="aspect-ratio:650/552;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_EA_Iso_Link_IRMS_System_2_01d3ed421c.jpg" alt="Thermo Scientific™ EA IsoLink™ IRMS System" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_EA_Iso_Link_IRMS_System_2_01d3ed421c.jpg 184w," sizes="100vw" width="650" height="552"></figure><h3><strong>More automation. More scalability. All in a single platform.</strong></h3><p><strong>Delivering proven performance with unprecedented robustness and ease of use, the EA IsoLink IRMS Platform can help your lab drive efficiency, improve cost-effectiveness, and minimize training for new operators.</strong></p><h4><strong>Low cost per sample for reduced operational costs</strong></h4><p><strong>Less helium consumption:</strong> Helium consumption is reduced by more than 60% for NCS and NC sample analysis, and reduced by more than 30% for OH sample analysis (compared with previous systems).</p><p><strong>Less replication:</strong> Because the EA IsoLink IRMS System measures high and low concentrations in the same sample (wide dynamic range), it reduces the need for replicate analysis (e.g., high carbon and low sulfur, such as in food authenticity or ecology applications).</p><p><strong>High throughput:</strong> Fast analysis provides high sample throughput, resulting in lower cost per sample.</p><h4><strong>High sensitivity driven by chromatography - even for the smallest sample size</strong></h4><p><strong>Temperature-ramped GC:</strong> Equipped with a temperature-ramped GC feature, the EA IsoLink System gives your lab the highest performance on small sample sizes through optimal baseline separation of analyte gases and sharp peak shapes.</p><p><strong>Performance synergies:</strong> The combination of in-line flash combustion technology and temperature-ramped GC separation significantly improves the performance for all your EA-IRMS applications.</p><h4><strong>System modularity for future-proof investment</strong></h4><p>The <strong>EA IsoLink IRMS</strong> System’s modular design provides the highest flexibility for all applications - enabling you to <strong>adapt and scale</strong> to new analyses in the future. Through smart upgrade paths, you can easily modify the system to increase performance and productivity as your needs grow over time. Boost your CN system with an S upgrade or add CNS to your OH isotope fingerprints.</p><p><strong>Thermo Scientific™ MAS Plus Autosampler</strong> provides a 125-position helium-purged sample chamber, low blank autosampler for CNS and OH analysis.</p><p><strong>Thermo Scientific™ AS 1610 Liquid Autosampler</strong> offers a versatile solution for injecting liquid samples.</p><p>Macro reactors enable CNS Analysis of large sample sizes (greater than 60 mg) and higher throughput on standard sample sizes to mg range.</p><h4><strong>Added flexibility with flash EA series</strong></h4><p>The flexibility of the Flash EA Series helps you meet growing analytical needs in<strong> IRMS and Organic Elemental Analysis</strong> (OEA).</p><p>The <strong>FlashSmart Elemental Analyzer</strong> for OEA delivers accuracy and precision with internationally recognized certifications. Its straightforward modular design offers a variety of optimized application configurations, including <strong>CHN, CHNS, S, N/Protein, CN, CNS, CHNS/O and more</strong>. High throughput with <strong>24/7</strong> operation, low cost per sample and optimized helium consumption are all driven by our fully automated dedicated OEA software, Thermo Scientific™ EagerSmart™ Data Handling Software, which can grow with your analytical needs without need for an upgrade.</p><h4><strong>Smart automation for ease of use</strong></h4><p>Because of its <strong>intelligent software</strong> and intuitive design, the EA IsoLink Platform allows operators to leverage familiar technology for higher productivity.</p><p><strong>Software Platform: </strong><a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/1489"><strong>The Thermo Scientific™ Qtegra™ Intelligent Scientific Data Solution</strong> </a>(ISDS) Software provides seamless control and automation for unattended operation and improved productivity. Regardless of operator skills or the final application, the <a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/1489"><strong>Qtegra ISDS Software</strong></a> offers logical, streamlined interface allowing straight forward measurement set-up through analytical Workflows. The software includes auto-stop, standby modes, and other features to minimize intervention. It also allows for integrated data evaluation strategies, customized reports and method development. All of the auto-diagnostics ensure important aspects of the instrument are monitored, maximizing uptime.</p><p><strong>Thermo Scientific™ smartEA option:</strong> This option allows you to focus on your research by combining ease-of-use and unattended analysis to deliver high-precision results. The smartEA option uses the analyzer’s <strong>Thermal Conductivity Detector </strong>(TCD) trace to define the required sample dilutions in the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/2231"><strong>ConFlo IV Universal Interface</strong></a>. The straightforward automated workflow allows you to analyze very small amounts, such as nitrogen and sulfur, along with highly abundant elements, such as carbon - all from the same sample.</p><h3><strong>Addressing a world of applications</strong></h3><p><strong>For origin and authenticity questions, the EA IsoLink IRMS Platform provides precise and sensitive measurement of the isotope fingerprints - C, N, S, O and H isotopes - a unique chemical signature of samples, helping you gain unique insights into their history and origin.</strong></p><h4><strong>Food authenticity and origin</strong></h4><p><strong>Is the label declaration on my food correct?</strong></p><p>From fruits and vegetables, to wine, honey and coffee, the EA IsoLink IRMS Platform provides isotopic fingerprints ideally suited to determining food integrity.</p><ul><li>Food adulteration</li><li>Food and beverage origin</li><li>Agronomy</li></ul><h4><strong>Environmental</strong></h4><p><strong>What is the source of pollution in the soil, water or air?</strong></p><p>An assessment of individual organic pollutants particles in air contamination (e.g. PM2.5) will be traced with C, N, and S isotope fingerprints.</p><ul><li>Marine science</li><li>Ecology and biology</li><li>Petroleum and exploration</li></ul><h4><strong>Geosciences</strong></h4><p><strong>What was the weather like thousands of years ago?</strong></p><p>By analyzing materials such as sediments, ice cores and speleothems, researchers can understand epochal changes in vegetation, rainfall patterns and temperature.</p><ul><li>Soil science</li><li>Palaeoclimatology research</li></ul><h4><strong>Forensics</strong></h4><p><strong>How can we investigate provenance and dietary preferences?</strong></p><p>From tracing explosives, illegal drugs, counterfeit currency, animal tissues such as ivory, dietary preferences and crime scene evidence, forensic investigations based on isotope fingerprints examine samples’ origin.</p><ul><li>Archaeology</li><li>Provenance</li></ul><h3><strong>Connectivity for origin and authenticity</strong></h3><p>Your lab can focus on isotopic investigations by taking advantage of having one partner and one platform for your elemental and isotope analysis. Thanks to the connectivity of the<strong> </strong><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/2232"><strong>DELTA Q IRMS</strong></a> and the connecting peripherals that are fully controlled by the <a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/products/1489"><strong>Qtegra ISDS Software</strong></a>, you can also leverage the high throughput, unattended operation and flexibility for demanding analysis, regardless of the applications.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_EA_Iso_Link_IRMS_System_2_dcb8a3d338.jpg" alt="Thermo Scientific™ EA IsoLink™ IRMS System " srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_EA_Iso_Link_IRMS_System_2_dcb8a3d338.jpg 245w," sizes="100vw" width="1464" height="933"></p>

Thermo Scientific TraceGOLD™ TG-1MS GC Columns

Choose the nonpolar Thermo Scientific™ TraceGOLD™ TG-1MS GC column for optimal signal-to-noise ratio, sensitivity, and MS integrity. 

<p><strong>Achieve consistent results with this low-bleed, stable column. For optimal signal-to-noise ratio, sensitivity and MS integrity for a wide variety of applications, the nonpolar TraceGOLD TG-1MS GC column is an excellent choice.</strong></p><figure class="image"><img style="aspect-ratio:1377/843;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Pragolab_GC_kolona_Thermo_Trace_GOLD_TG_1_MS_721a943897/Pragolab-GC-kolona-Thermo-TraceGOLD-TG-1MS.jpg" alt="Thermo Scientific™: TraceGOLD™ TG-1MS GC Columns" width="1377" height="843"></figure><h4><strong>Engineered for Superior Performance:</strong></h4><ul><li>Nonpolar, 100% dimethyl polysiloxane</li><li>Equivalent to USP G2</li><li>Exceptionally low-bleed</li></ul><h4><strong>A Leap Forward in Performance with Low-Bleed and Superior Inertness:</strong></h4><ul><li>Low baseline noise enables improved limits of detection with enhanced resolution of low-level analytes.</li><li>Minimizing column bleed extends the column lifetime, leading to higher productivity.</li><li>Reducing column bleed increases reproducibility of the stationary phase over time, resulting in greater run-to-run and batch-to-batch reproducibility.</li><li>Superior inertness ensures excellent peak shape and sensitivity, especially for highly active or difficult to analyze compounds.</li></ul><h4><strong>Recommended For:</strong></h4><ul><li>Hydrocarbons</li><li>GROs</li><li>Drugs of Abuse</li><li>PCBs</li></ul><h4><strong>Alternative Uses:</strong></h4><ul><li>Chlorinated aromatics</li><li>Organochlorine pesticides</li><li>Organophosphorous pesticides</li><li>Polycyclic aromatic hydrocarbons (PAHs)</li><li>Paraffins</li><li>Polywax</li><li>Pyrethroids</li><li>Semivolatiles</li><li>Xylenes</li></ul><h4><strong>Similar To:</strong></h4><ul><li>Rxi™-1ms</li><li>DB-1</li><li>DB-1ms</li><li>HP-1</li><li>HP-1ms</li><li>Ultra-1</li><li>SPB™-1</li><li>Equity™-1</li><li>VF-1ms</li><li>CP-Sil 5 CB Low Bleed/MS</li></ul>

Thermo Scientific TraceGOLD™ TG-1 MT Metal GC Columns

Push the limits of your analyses with Thermo Scientific™ TraceGOLD™ TG-1MT GC Columns. These nonpolar, metal columns allow you to work a temperatures up to 430°C

<p><strong>Push the limits of your analyses with Thermo Scientific™ TraceGOLD™ TG-1MT GC Columns. These nonpolar, metal columns allow you to work a temperatures up to 430°C with no compromise in performance when analyzing highly active and aggressive compounds.</strong></p><h4><strong>Engineered for Superior Performance:</strong></h4><ul><li>Nonpolar, 100% dimethyl polysiloxane</li><li>Low bleed for excellent signal-to-noise ratio, sensitivity and mass spectral integrity</li><li>Stable to 430°C</li><li>USP Type: G1, G2, G38</li></ul><h4><strong>A Leap Forward in Performance with Low-Bleed and Superior Inertness:</strong></h4><ul><li>A low bleed, stable column produces consistent results.</li><li>Low baseline noise enables improved limits of detection with enhanced resolution of low level analytes. Minimizing column bleed extends the column lifetime, leading to higher productivity.</li><li>Reducing column bleed increases reproducibility of the stationary phase over time, resulting in greater run-to-run and batch-to-batch reproducibility.</li><li>Superior inertness ensures excellent peak shape and sensitivity, especially for highly active or difficult compounds.</li></ul><h4><strong>Applications:</strong></h4><ul><li>Hydrocarbons</li><li>Solvent impurities</li><li>Polychlorinated biphenyl (PCB) congeners</li><li>Aroclor mixes</li><li>Simulated distillation</li><li>Drugs of abuse</li><li>Natural gas odorants</li><li>Essential oils</li><li>Pesticides</li></ul><h4><strong>Alternative Uses:</strong></h4><ul><li>Chlorinated aromatics</li><li>Organochlorine pesticides</li><li>Organophosphorous pesticides</li><li>Polycyclic aromatic hydrocarbons (PAHs)</li><li>Paraffins</li><li>Polywax</li><li>Pyrethroids</li><li>Semivolatiles</li><li>Xylenes</li></ul><h4><strong>Similar To:</strong></h4><ul><li>MXT™-1</li><li>DB-1</li><li>DB-1MS</li><li>HP-1</li><li>HP-1MS</li><li>Ultra-1</li><li>SPB™-1</li><li>Equity™-1</li><li>MDN-1</li><li>CP-Sil 5 CB</li><li>VF-1ms</li><li>ZB-1HT</li></ul>

Thermo Scientific TraceGOLD™ TG-5MS GC Columns

Employ the most widely used MS phase in gas chromatography with the 5% phenyl phase Thermo Scientific™ TraceGOLD™ TG-5MS GC Column.

<p><strong>Employ the most widely used MS phase in gas chromatography with the 5% phenyl phase TraceGOLD TG-5MS GC Column.</strong></p><ul><li>Low polarity phase, 5% diphenyl/95% dimethyl polysiloxane</li><li>Low bleed for excellent signal-to-noise ratio, sensitivity and mass spectral integrity</li><li>Exceptional inertness ideal for analysis of active compounds</li><li>Equivalent to USP G27 phase</li></ul><figure class="image"><img style="aspect-ratio:1411/863;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Pragolab_GC_kolona_Trace_GOLD_TG_5_MS_GC_columns_a9e173e392/Pragolab-GC-kolona-TraceGOLD-TG-5MS-GC-columns.jpg" alt="Thermo Scientific: TraceGOLD™ TG-5MS GC Columns" width="1411" height="863"></figure><h4><strong>Recommended for:</strong></h4><ul><li>Semivolatiles</li><li>Phenols</li><li>Amines</li><li>Residual solvents and solvent impurities</li><li>Drugs of abuse</li><li>Pesticides</li><li>PCB cogeners</li><li>Aroclor mixes</li></ul><h4><strong>Similar to:</strong></h4><ul><li>Rxi™-5ms</li><li>DB-5</li><li>HP-5</li><li>HP-5ms</li><li>Ultra-2</li><li>SPB-5</li><li>Equity-5</li><li>CP-Sil 8</li></ul>

Thermo Scientific TraceGOLD™ TG-5MS AMINE GC Columns

Thermo Scientific™ TraceGOLD TG-5MS AMINE GC Column enables analysis of ppm levels of amines without column priming.

<p><strong>Thermo Scientific™ TraceGOLD TG-5MS AMINE GC Column enables analysis of ppm levels of amines without column priming.</strong></p><ul><li>Low polarity phase, 5% diphenyl/95% dimethyl polysiloxane</li><li>Tubing surface is chemically altered to reduce tailing of active basic compounds</li><li>Also allows analysis of neutral or weakly acidic compounds (e.g., phenols) and compounds susceptible to hydrogen bonding</li><li>Low bleed at maximum operating temperature</li></ul><figure class="image"><img style="aspect-ratio:1394/854;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Pragolab_GC_kolona_Trace_GOLD_TG_5_MS_AMINE_GC_columns_0e35235e21/Pragolab-GC-kolona-TraceGOLD-TG-5MS-AMINE-GC-columns.jpg" alt="Thermo Scientific: TraceGOLD™ TG-5MS AMINE GC Columns" width="1394" height="854"></figure><h4><strong>Recommended for:</strong></h4><ul><li>Amines and other basic compounds, including alkylamines, diamines, triamines, ethanolamines</li><li>Nitrogen-containing heterocyclics</li></ul>

Thermo Scientific TraceGOLD™ TG-5SilMS GC Columns

Thermo Scientific™ TraceGOLD™ TG-5SilMS GC Columns incorporate phenyl groups in the polymer backbone for improved thermal stability, reduced bleed and reduced susceptibility to oxidation.

<p><strong>Thermo Scientific™ TraceGOLD™ TG-5SilMS GC Columns incorporate phenyl groups in the polymer backbone for improved thermal stability, reduced bleed and reduced susceptibility to oxidation.</strong></p><ul><li>Low polarity, silarylene phase with selectivity comparable to 5% diphenyl/95% dimethyl polysiloxane</li><li>Designed for low bleed and outstanding inertness<br>&nbsp;</li></ul><figure class="image"><img style="aspect-ratio:1330/809;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Pragolab_GC_kolona_Trace_GOLD_TG_5_Sil_MS_GC_columns_6f0b7c025e/Pragolab-GC-kolona-TraceGOLD-TG-5SilMS-GC-columns.jpg" alt="Thermo Scientific: TraceGOLD™ TG-5SilMS GC Columns" width="1330" height="809"></figure><h4><strong>Recommended for:</strong></h4><ul><li>GC/MS applications using ion-trap systems</li><li>Polycyclic aromatics</li><li>Hydrocarbons including chlorinated hydrocarbons</li><li>Phthalates</li><li>Phenols</li><li>Amines</li><li>Organophosphates</li></ul><h4><strong>Similar to:</strong></h4><ul><li>DB-5MS</li><li>VF-5ms</li><li>CP-Sil 8 Low-Bleed/MS</li><li>Rxi-5Sil MS</li><li>BPX5, ZB-5ms</li><li>Optima-5MS</li><li>SLB-5</li></ul>

Thermo Scientific TraceGOLD™ TG-5SILMS Guard GC Columns with SafeGuard

Thermo Scientific™ TraceGOLD™ TG-5SILMS Guard GC Columns with SafeGuard offer benefit of integrated SafeGuard for extended column lifetime

<p><strong>Thermo Scientific™ TraceGOLD™ TG-5SILMS Guard GC Columns with SafeGuard offer the benefit of an integrated SafeGuard for extended column lifetime.</strong></p><p>Using a guard column with a TraceGOLD TG-5SILMS GC column will lead to greater consistency in results over a longer period of time.</p><ul><li>With integrated SafeGUARD</li><li>Available in a range of phases</li></ul><h4><strong>For Use With (Application)</strong></h4><ul><li>GC/MS applications using ion-trap systems</li><li>Polycyclic aromatics</li><li>Hydrocarbons including chlorinated hydrocarbons</li><li>Phthalates</li><li>Phenols</li><li>Amines</li><li>Organophosphates</li></ul>

Thermo Scientific TraceGOLD TG-5HT GC Columns

Thermo Scientific™ TraceGOLD TG-5HT GC Columns offer extended operation up to 400°C, ideal for high temperature GC applications.

<p><strong>Thermo Scientific™ TraceGOLD TG-5HT GC Columns offer extended operation up to 400°C, ideal for high temperature GC applications.</strong></p><ul><li>Low polarity, 5% diphenyl/95% dimethyl polysiloxane</li><li>Lower bleed and better inertness than comparable high-temperature columns</li><li>Special design of fused silica tubing extends column lifetime by up to 40%</li><li>USP Type: G27, G36</li></ul><figure class="image"><img style="aspect-ratio:1330/813;" src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Pragolab_GC_kolona_Trace_GOLD_TG_5_HT_GC_columns_952bce3f50/Pragolab-GC-kolona-TraceGOLD-TG-5HT-GC-columns.jpg" alt="Thermo Scientific: TraceGOLD TG-5HT GC Columns" width="1330" height="813"></figure><h4><strong>Recommended for:</strong></h4><ul><li>Phenols</li><li>Residual solvents</li><li>Drugs of abuse</li><li>Semivolatiles</li><li>Pesticides</li><li>PCBs</li><li>Solvent impurities</li></ul><h4><strong>Similar to:</strong></h4><ul><li>Rxi™-5HT</li><li>BD-5H</li><li>&nbsp;VF-5HT</li><li>ZB-5HT</li></ul>

Thermo Scientific TraceGOLD™ TG-5 MT Metal GC Columns

Give greater stability and inertness at elevated temperatures and when working with highly active compounds with Thermo Scientific™ TraceGOLD™ TG-5MT Metal GC Columns.

<p><strong>TG-5MT Metal GC Columns provide greater robustness under increased stress.</strong></p><ul><li>Can be used at elevated temperature without risk of bleed or breakdown</li><li>Excellent inertness when working with highly active compounds</li><li>Robust under stress</li><li><strong>USP Type:</strong> G27, G36</li><li><strong>Max. Temperature:</strong> &nbsp;430°C (Metal Columns)</li><li><strong>Polarity:</strong> Low-Polar</li></ul><h4><strong>Applications:</strong></h4><ul><li>Solvent Impurities Analysis</li><li>GC/MS for Residual Solvents and Solvent Impurities</li><li>GC/MS for Drugs of Abuse, Pesticides, PCB Cogeners, and Aroclor Mixes</li></ul>

Thermo Scientific TraceGOLD™ TG-SQC GC Columns

The TraceGOLD TG-SQC GC column is optimized for system qualification tests during initial installation, or during service

<p><strong>Ensure the quality of your Thermo Scientific instrument when installed on site by using the Thermo Scientific™ TraceGOLD™ TG-SQC GC column.&nbsp;</strong></p><p>The TraceGOLD TG-SQC GC column is optimized for system qualification tests during initial installation, or during service and maintenance of an installed instrument. This column is recommended for benchmark testing only.</p><h4><strong>Applications:</strong></h4><ul><li>System qualification tests (Thermo Scientific GC-MS)</li></ul>

Products distributed by Thermo Fisher Scientific (EMEA) - page 10

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