<blockquote>Welcome back to the topic of protecting your GC column! If you missed part 1 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">here.</a></blockquote>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.<h3>Use A Liner With Wool</h3>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;<blockquote>Caution: 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.</blockquote>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.<h3>Bake Out Your Column</h3>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.

How to Protect Your GC Column - Part 2

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

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

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!<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 technical note by Agilent Technologies, presentation by MDCW / University of Copenhagen and application notes by Shimadzu and Thermo Fisher Scientific!<h3>1. Agilent Technologies: What Causes Spots on <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?instrumentationItems=19&amp;manufacturerItems=1&amp;search=PLOT">PLOT Columns</a>? Will It Affect the Performance of the Column?</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">Full PDF for download</a></li></ul>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.<h3>2. MDCW / University of Copenhagen: One-shot tensor decomposition of full-scale GC×GC-VUV datasets for resolving petrochemical groups</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">Full PDF for download</a></li></ul>The presentation introduces a novel all-samples-at-once, shift-invariant tri-linear tensor decomposition approach for the analysis of full-scale <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?search=GC%C3%97GC-VUV">GC×GC-VUV</a> datasets, 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.At the core of the method is a shift-invariant tri-linear model, 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 accurate estimates of peak landscapes, VUV spectra, and relative peak areas, while remaining agnostic to retention-time variability. Importantly, the approach requires only a small number of tunable parameters, making it practical for routine use.The method was demonstrated on a case study involving 14 petrochemical gas-oil samples, 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 high repeatability (RSD typically 3–9%) and strong correlation with established template-based reference methods.Overall, the work demonstrates that one-shot, shift-invariant tensor decomposition 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.<h3>3. Shimadzu: Py-Screener Ver. 3: Simultaneously Test for Substances Regulated Under RoHS, TSCA, and POPs</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">Full PDF for download</a></li></ul><h5>User Benefits</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">Py-Screener</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>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.<h4>Analysis Process</h4>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.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.<h4>Conclusion</h4>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.<h3>4. Thermo Fisher Scientific: Improving low carbon steel production in specialty steel processes</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">Full PDF for download</a></li></ul>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.<h4>Advantages of mass spectrometry&nbsp;</h4>Traditional Non-Dispersive Infra-Red (NDIR) analyzers are used in many conventional steelmaking processes to measure CO and CO2 , 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;Paramagnetic analyzers can be used to measure O2 , while thermal conductivity analyzers can be used to measure H2 . 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 N2 is calculated by difference, a result that suffers from the sum of the errors of the three analytical techniques.&nbsp;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.<h4>Precision of analysis&nbsp;</h4>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">Thermo Scientific™ Prima PRO Mass Spectrometer</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;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;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;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.

News from LabRulezGCMS Library - Week 07, 2026

Article

Application

Academy

Video

Presentation

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

The Multidimensional Chromatography Workshop

Everything from the world of analytical chemistry in one place. We connect people in solving their problems. At Labrulez you will find all the necessary information easily, quickly and clearly. Stop searching and start finding.

LabRulez

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.

Phenomenex

Labmate

Separation Science

The Analytical Scientist

Agilent Technologies

SepSolve Analytical

Thermo Fisher Scientific

Injecting water into your GC may be convenient especially if you are working with compounds that have limited solubility in organic solvents or are working with water samples. But, there are many potential problems with water including injector and detector issues. Join us as we dive deep and explore water injections. We will discuss not only how to do them correctly, but also the many pointers to keep in mind when working with water.
<blockquote>
Presenter: Mark Sinnott (Application Engineer, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Mark Sinnott works for Agilent Technologies as a Technical Support Engineer in the Consumables and Supplies Division (CSD) at the capillary column manufacturing facility (the “J&amp;W Scientific” location). In his position at Agilent, Mark performs technical support and applications assistance to gas chromatographers worldwide. He has more than 22 years of experience in gas chromatography, including environmental analysis of compounds in air, soil and water matrices, including dissolved gas analysis for the electrical industry. Mark holds a Master’s Degree in Chemistry from California State University, Sacramento, and currently resides in Sacramento.
</blockquote>

Pixabay/kalhh: Water Injections in GC: An Expanding Problem

Water Injections in GC: An Expanding Problem

The determination of water content in alcoholic beverages, solvents and various consumer products such as foods, fuels, pharmaceuticals, and petroleum products is one of the most common types of chemical testing.
Many techniques such as gravimetric analysis, gas chromatography (GC), Karl Fischer Titration, near infra-red spectroscopy, and others have been used for water quantification with good results. [1] However, the limitations of these approaches can include high limits of detection, large sample sizes required for trace analysis, side reactions, the use of expensive consumables, and the production of chemical waste. Previous work by Prof. Daniel Armstrong and co-workers has described the use of ionic liquid GC capillary columns for the trace analysis of the water content in a wide variety of solvents. [2] These columns were capable of providing a rapid and quantitative determination of water contents using very small sample amounts. This webinar further examines the characteristics of ionic liquid capillary columns for the GC analysis of water.
<blockquote>
Presenter: Leonard M. Sidisky (Milliporesigma)
</blockquote>
<blockquote>
Len is the R&amp;D Manager for Gas Separations at MilliporeSigma. He received his B.S. degree in Biology (1980) and an M.S. in Food Science (1997) from The Pennsylvania State University. He has been working at Supelco since 1982 and is responsible for new novel technologies related to GC, sample preparation, air sampling, solid-phase microextraction (SPME) and high-performance carbon adsorbents. His analytical background includes expertise in GC, LC and sample preparation such as SPE and SPME. He is very active in the American Oil Chemist’s Society (AOCS) including their Analytical Division. He has served the AOCS’s Northeast Section (President, 2000-2001 and VP 1998-1999), Chromatography Committee Chairperson (2000-2009), Governing Board Technical Steering Committee Chairperson (2010-2017), Vice-President (2017-present), National Secretary (2016-2017), AOCS Fellow 2016, NE-AOCS Section president (2000-2001) as well as VP (1998-1999). Other activities include Hans Kaunitz Award Chairman 2000-2001, Supelco/ Nicholas Pelick AOCS Lipid Award Representative 1994-present, 1992 Ralph H. Potts Memorial Fellowship Award Winner. Len is also a member of the Institute of Food Technologists (IFT), American Chemical Society (ACS) member; ASTM D01, D02, D03, D16, D19, D22, D26 and E13 Committees. His research interests are in the development of GC products for a wide range of industrial applications, capillary columns for lipid sample analyses, theory and practical application of Capillary GC and SPME product development and applications. He has presented and published numerous papers and given seminars worldwide.
</blockquote>
<blockquote>
Presenter: Mark Janeczko ( Shimadzu Scientific Instruments, Inc)
</blockquote>
<blockquote>
Mark Janeczko has over 30 years’ experience in the analytical chemistry instrumentation industry holding leadership roles in applications, sales, business development, and marketing for some of the leading companies in the industry. Currently he is the Energy and Chemicals Marketing Manager for Shimadzu Scientific Instruments, Inc. (Columbia, MD). Mark earned a BA in Chemistry from Canisius College (Buffalo, NY) and joint International MBA from the University of Maryland (College Park, MD) and the University of Antwerp (Antwerp, Belgium).
</blockquote>
<blockquote>
Presenter: Tom Lynch CChem (FRSC, Labamate)
</blockquote>
<blockquote>
Tom has 35 years’ of experience in the petroleum industry, specialising in the delivery of forensic and problem solving /method development capabilities for BP Fuels and Lubricants businesses globally. He was also a member of the BP Science Council representing Analytical Science and led a BP wide Analytical Science network. Tom has published over 30 citable papers, 4 book chapters and has given over 60 presentations at conferences. He is a past Vice President of the Royal Society of Chemistry (RSC) Analytical Division and a past Chairman of the RSC Separation Science Group. In addition, Tom is a recipient of the Silver Jubilee Medal by the Chromatographic Society and a technical achievement award by the Energy Institute.
</blockquote>

Shimadzu: Supelco’s Watercol™ Ionic Liquid Capillary Columns Coupled with TCD and Shimadzu’s BID for Detection and Quantitative Analysis of Water by Gas Chromatography.

Supelco’s Watercol™ Ionic Liquid Capillary Columns Coupled with TCD and Shimadzu’s BID for Detection and Quantitative Analysis of Water by Gas Chromatography.

Characteristics of ionic liquid capillary columns for the GC analysis of water.

Supelco’s Watercol™ Ionic Liquid Capillary Columns

<h3>What Does it Cover?</h3>
Gas Chromatography is a technique widely used for analysis of matrices such as foods, water and biological samples. In order to get the optimum results from your analysis, it is important to ensure that method development and troubleshooting are addressed concisely.
This webinar will focus on tips and tricks for getting the best possible results from your GC instrument.
What You Will Learn:
<ul>
<li>Method development in GC</li>
<li>Common problems encountered with GC analysis and suggested tips to resolve these problems</li>
<li>Optimize your running costs whilst maintaining efficiency and output.</li>
</ul>
Who Should Attend
All GC users using or developing Capillary Gas Chromatography methods.
<blockquote>
Presenter: Ruth Jones (Product Manager, Thermo Fisher Scientific)
</blockquote>
<blockquote>
Ruth Jones is Product Manager for GC columns, consumables &amp; reagents at Thermo Fisher Scientific. She has been with the organisation for 9 years in various Product Management and Marketing roles. She holds a Master of Physics degree from the University of Leeds, UK and is a chartered member of both the Institute of Physics and the Institute of Marketing.
</blockquote>

Thermo Fisher Scientific: Tips and Tricks – Getting the Best out of your GC System

Tips and Tricks – Getting the Best out of your GC System

Monitoring the 981 miles of the Ohio River helps to protect the designated uses of this waterbody and is a core directive of the Ohio River Valley Water Sanitation Commission (ORSANCO). ORSANCO&#39;s Organics Detection System is a networked array that relies on the cooperative efforts and partnerships with fixed facility stations, comprising public and private drinking water utilities and commercial industry.
<h5>This webcast will discuss the challenges of monitoring volatile organic compounds (VOCs) over such a large area, and the workflows developed to address this challenge. In particular:</h5>
<ul>
<li>Methods used to confirm presence and verify absence of VOCs from source water</li>
<li>How we use calibrated GC-MS systems for detection of 30 compounds, and potential identification of thousands of volatiles</li>
<li>Use of purge and trap technology for pre-treatment and GC or GC–MS for separation and near real-time monitoring with either autosamplers or a flow-through sample delivery matrix on a process GC instrument</li>
<li>Addition of closed network Internet access allowing for remote access into instruments for troubleshooting, diagnosing repair, maintenance issues, and ability to view real time occurrences at ALL monitoring sites.</li>
</ul>
<blockquote>
Presenter: Lila Ziolkowski (MPH Quality Assurance Officer and Analytical and Environmental Chemist Ohio River Valley Water Sanitation Commission)
</blockquote>
<blockquote>
Has served with ORANSCO for over 16 years. Oversees operations of ODS, spill notification and emergency response. Prior, she was interim Quality Supervisor for Hill Canyon Treatment plant in Thousand Oaks, CA, and Portsmouth Water Treatment plant in Suffolk, VA. Also worked in commercial contract and clinical laboratories. Lila has a Masters in Public Health in Epidemiology from Emory University and a Bachelor&#39;s degree in Microbiology and Immunology from University of California, Berkeley.
</blockquote>
<blockquote>
Presenter: Wei Liu, Ph.D, MBA (Sr. Marketing Development Manager Thermo Fisher Scientific)
</blockquote>
<blockquote>
Sr. Market Development Manager at Thermo Fisher Scientific, with focus on trace elemental analysis applications in environmental and industrial markets. Earlier, Wei worked as a scientist in field of industrial enzymes and drug discovery and has held a variety of roles, including regional marketing manager, product manager and market research manager. Wei earned an MBA from Haas School of Business at UC Berkeley and a Ph.D. in Molecular Biology from the University of Illinois, Chicago. He has 14 international scientific publications and holds 4 patents.
</blockquote>

Pixabay/Mike Goad: Monitoring Volatile Organic Compounds Using GC and GC-MS

Monitoring Volatile Organic Compounds Using GC and GC-MS

Hans-Gerd will describe how GC-VUV provides a new solution to MOSH / MOAH analytical challenges through its unique selectivity.
Highly purified mineral oil hydrocarbons (MOH) are used in several food and cosmetic products. In these MOH materials low levels of (residual) Mineral oil Aromatic Hydrocarbons (MOAH) can be present. The quantification of these compounds is by no means trivial. All samples contain a vast excess of MOSH (Mineral Oil Saturated Hydrocarbons). The cause of these problems is often the use of non-selective analytical methods. Hans-Gerd will describe how GC-VUV provides a new solution to MOSH / MOAH analytical challenges through its unique selectivity.
<h3>Learning Objectives of Webinar</h3>
<ul>
<li>Understand the importance of characterizing MOSH and MOAH compounds in food and cosmetic products.</li>
<li>Learn about the analytical challenges common to the separation and quantification of MOSH and MOAH compounds.</li>
<li>Gain insight into how the unique selectivity of GC-VUV enables the accurate identification and quantification of MOSH and MOAH compounds.</li>
</ul>
<blockquote>
Hans-Gerd Janssen, Science leader, Unilever Research Vlaardingen &amp; professor analytical chemistry, University of Amsterdam, Unilever, University of Amsterdam
</blockquote>
<blockquote>
Dr. Janssen is a Professor at the University of Amsterdam and Science Leader at Unilever Research Vlaardingen, the Netherlands. His research focuses on the development of novel methods for obtaining highly detailed compositional information on complex samples. He is well known for his work with comprehensive chromatography set-ups that combine high-resolution liquid chromatography and gas chromatography. He holds a Ph.D. in Analytical Chemistry from Eindhoven University of Technology.
</blockquote>

Pixabay/Redhawk Investment Group: A new tool for more reliable and more detailed MOAH analysis: Gas Chromatography with Vacuum Ultraviolet detection (GC-VUV)

A new tool for more reliable and more detailed MOAH analysis: Gas Chromatography with Vacuum Ultraviolet detection (GC-VUV)

<h3>In this webinar you will:</h3>
<ul>
<li>See our simple workflows for GC and GCxGC processing on a range of file formats</li>
<li>Hear about our hardware support for streamlined instrument control and data processing </li>
<li>Find out how our network licensing can unify lab processing </li>
<li>Discover the latest features of the soon-to-be-released v1.5</li>
</ul>

SepSolve: The latest innovations in GCxGC software: What can ChromSpace do for you?

GCMS webinars focusing on GC - page 43