<p><strong>Clarity 10.2 expands instrument control capabilities with new control modules and updates the MS extension to help you work more efficiently.</strong></p><h4><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/999"><strong>Clarity</strong></a><strong> 10.2 highlights</strong></h4><ul><li>New and updated control modules</li><li>Improved MS data import and export</li><li>Obsolete hardware support ended</li></ul><h4><strong>Instrument control modules</strong></h4><p>Clarity 10.2 introduces new instrument control modules from Annuo (AS-3117, FAS-3823) and updated instrument controls form Sykam and Ecom.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Data_Apex_Instrument_control_modules_5de26782b0.jpg" alt="DataApex: Instrument control modules" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Data_Apex_Instrument_control_modules_5de26782b0.jpg 228w," sizes="100vw" width="380" height="260"></p><h4><strong>MS data import/export improvements</strong></h4><p>Clarity improves MS data exchange, especially for *.cdf files. MS instruments now support export and import of multiple spectral data and non-spectral signal data in the same CDF file. Import also better handles uniform sampling information, m/z Step values, scale factors, and file names with non-ASCII characters. Exporting individual chromatogram signals from MS instruments is now available through a separate Export Chromatogram dialog.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Data_Apex_MS_data_import_export_improvements_a7967a4020.jpg" alt="DataApex: MS data import-export improvements" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Data_Apex_MS_data_import_export_improvements_a7967a4020.jpg 228w," sizes="100vw" width="378" height="259"></p><h4><strong>Obsolete hardware support terminated</strong></h4><p>Due to changes in Windows driver security requirements, this update discontinues support for obsolete hardware, including INT7, INT9, U-PAD, U-PAD2, and CB20.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Data_Apex_Obsolete_hardware_support_terminated_24d9329419.jpg" alt="DataApex: Obsolete hardware support terminated" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Data_Apex_Obsolete_hardware_support_terminated_24d9329419.jpg 228w," sizes="100vw" width="378" height="259"></p><blockquote><p><strong>Explore the complete list of all changes, fixes, and additions in version 10.2.</strong></p><p><strong>👉</strong><a target="_blank" rel="noopener noreferrer" href="https://www.dataapex.com/version_history?product=1"><strong>See the complete changelog&nbsp;</strong></a></p></blockquote>

Clarity Chromatography Software 10.2 released!

<p><strong>Traditional EI library searching works exceptionally well when the unknown compound is already present in the spectral library. However, analytical chemists frequently encounter compounds that are structurally related to library entries but are not exact matches. NIST's EI Hybrid Search addresses this challenge by combining conventional spectral matching with mass-shifted fragment alignment, allowing the identification of analogs, derivatives, and novel compounds that may not exist in the database.</strong></p><p>This guide summarizes the workflow presented by James Little and demonstrates how to use NIST 26 Hybrid Search in conjunction with the Chromatogram Window and MS Interpreter to obtain more meaningful structural information from unknown EI GC-MS spectra.</p><blockquote><p><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/paper/33370"><strong>You can download PDF Handout for this guide HERE</strong></a></p></blockquote><h4><strong>Why Hybrid Search Matters</strong></h4><p>Conventional EI library searching relies on direct matching between an unknown spectrum and spectra stored in a library. Hybrid Search expands this concept by allowing fragment ions to be matched even when they are shifted by a consistent mass difference (Δm). This enables the software to recognize compounds that differ by substituents or structural modifications.</p><p><strong>Key advantages include:</strong></p><ul><li>Identification of structurally related compounds not present in the library</li><li>Detection of analogs, derivatives, and emerging compounds</li><li>Integration of exact fragment matches and mass-shifted matches into a single score</li><li>Improved interpretation of unknowns through proposed structural modifications</li><li>Enhanced confidence when molecular weight information is available</li></ul><p>Although Hybrid Search does not require the molecular ion to be present, performance improves significantly when the molecular weight can be estimated or constrained. In these cases, the observed mass difference between the unknown and library compounds can often be translated directly into a plausible chemical modification.</p><h4><strong>Configuring Hybrid Search</strong></h4><p>Before performing a search, the Hybrid Search settings should be configured within the NIST Library Search window.</p><p>Recommended settings:</p><ul><li>Select the Similarity search mode</li><li>Enable Hybrid Search</li><li>Keep the In Spectrum option checked under normal circumstances</li><li>Allow the software to estimate the molecular weight automatically</li><li>If the estimated molecular weight appears incorrect, manually enter a nominal molecular weight</li><li>Select all relevant libraries (NIST, Wiley, user libraries, etc.)</li><li>Save the configuration for future use</li></ul><p>The selected molecular weight used to constrain the search is displayed in the lower-right corner after the search is completed.</p><h4><strong>Optimizing the Results Display</strong></h4><p>Hybrid Search produces several unique parameters that are not shown in the default results table.</p><p>Additional columns should be added by right-clicking within the results table and selecting Properties. Recommended columns include:</p><ul><li>DeltaMass</li><li>dForm</li><li>pctRelForm</li><li>o.Match (equivalent to the traditional EI Normal Match score)</li></ul><p>Without these parameters, much of the structural interpretation power of Hybrid Search is lost.</p><h4><strong>Working with Spectra from the Chromatogram Window</strong></h4><p>Currently, the Chromatogram Window performs standard EI library searching. When a potentially interesting unknown is encountered:</p><ul><li>Perform the normal EI search in the Chromatogram Window</li><li>Send the spectrum to the standalone Library Search module</li><li>Perform a Hybrid Search using the enhanced Hybrid Search functionality</li></ul><p>This workflow combines rapid screening with advanced structural interpretation.</p><h4><strong>Understanding Key Hybrid Search Parameters</strong></h4><h5><strong>DeltaMass (Δm)</strong></h5><p>DeltaMass represents the mass difference between the unknown compound and the matched library compound.</p><p>A consistent Δm across multiple high-scoring hits often indicates a specific structural modification.</p><h5><strong>dForm</strong></h5><p>dForm provides a proposed elemental composition that explains the observed mass difference.</p><p>Examples include:</p><ul><li>H–1F</li><li>CH₂</li><li>O–1</li><li>C₁H₃F</li></ul><p>These transformations can suggest likely chemical modifications between the library compound and the unknown.</p><h5><strong>pctRelForm</strong></h5><p>New in NIST 26, pctRelForm estimates how frequently a given elemental transformation occurs relative to the most common transformation (CH₂ = 100%).</p><p>Interpretation:</p><ul><li>High values indicate chemically plausible and commonly observed transformations</li><li>Very low values suggest the proposed transformation may be accidental or unlikely</li></ul><h5><strong>o.Match</strong></h5><p>Represents the traditional EI match score and allows comparison between standard searching and Hybrid Search results.</p><h4><strong>Case Study: Identifying a Fluorinated Unknown</strong></h4><p>The presentation demonstrates the identification of an unknown compound with a proposed molecular weight of 152 Da.</p><p>Hybrid Search returned several high-scoring hits with consistent evidence suggesting fluorine substitution:</p><p><strong>Hit #1</strong></p><ul><li>Library MW: 134</li><li>DeltaMass: +18</li><li>dForm: H–1F</li><li>Interpretation: Addition of fluorine</li></ul><p><strong>Hit #5</strong></p><ul><li>Library MW: 138</li><li>DeltaMass: +14</li><li>dForm: CH₂</li><li>Interpretation: Related fluorinated analog</li></ul><p><strong>Hit #6</strong></p><ul><li>Library MW: 168</li><li>DeltaMass: –16</li><li>dForm: O–1</li><li>Interpretation: Structurally consistent fluorinated compound</li></ul><p>Multiple independent hits converged on the same conclusion: the unknown was likely a fluorinated analog of known aromatic compounds.</p><p>This illustrates the major strength of Hybrid Search: identifying structural relationships even when the exact compound is absent from the library.</p><h4><strong>Moving from Hybrid Search to Structural Interpretation</strong></h4><p>Once a plausible structure is identified:</p><h5><strong>Step 1 – Export the Structure</strong></h5><p>From the Hybrid Search results:</p><ul><li>Right-click the best hit</li><li>Use Send To → Default Structure Editor</li><li>Open the structure in a drawing program such as ChemSketch</li><li>Copy the proposed structure to the clipboard</li></ul><h5><strong>Step 2 – Open MS Interpreter</strong></h5><p>Within MS Interpreter:</p><ul><li>Paste the proposed structure</li><li>Load the unknown spectrum</li><li>Compare predicted fragmentation with observed ions</li><li>Evaluate isotope patterns and fragment assignments</li></ul><h5><strong>Step 3 – Validate the Proposal</strong></h5><p>Indicators of a good structural proposal include:</p><ul><li>Consistent isotope ratios</li><li>Logical fragmentation pathways</li><li>Agreement between observed and predicted fragment ions</li><li>Multiple Hybrid Search hits supporting the same structural modification</li></ul><p>In the example presented, MS Interpreter showed excellent agreement between the proposed fluorinated structure and the observed EI spectrum, although the exact positions of the fluorine and methyl substituents on the aromatic ring could not be definitively assigned.</p><h4><strong>Best Practices</strong></h4><ul><li>Always review DeltaMass, dForm, and pctRelForm together</li><li>Do not rely solely on the highest match score</li><li>Give greater weight to transformations supported by multiple independent hits</li><li>Use molecular weight information whenever possible</li><li>Confirm structural hypotheses using MS Interpreter</li><li>Consider Hybrid Search as a structure-elucidation tool rather than simply a library search tool</li></ul><h4><strong>Conclusion</strong></h4><p>NIST 26 Hybrid Search significantly extends the capabilities of conventional EI library searching by identifying structural relationships between unknown compounds and library entries. Through the use of DeltaMass calculations, elemental transformation analysis (dForm), and statistical plausibility metrics (pctRelForm), Hybrid Search provides valuable clues for elucidating compounds that are absent from spectral libraries.</p><p>When combined with MS Interpreter, it becomes a powerful workflow for the characterization of unknowns, analogs, degradation products, metabolites, and emerging compounds in EI GC-MS analysis.</p>

Lib Search: Similarity EI Hybrid Search for Spectra Sent from Chromatogram Window

<p><strong>Our Library never stops expanding. What are the most recent contributions to LabRulezGCMS Library in the week of 22nd June 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 brochure by <strong>Agilent Technologies, </strong>application note<strong> </strong>by<strong> Shimadzu </strong>and posters by <strong>MDCW / William &amp; Mary </strong>and <strong>Waters Corporation / ASMS!</strong></p><h3><strong>1. Agilent Technologies: Operational efficiency for your GC and GC/MS labs with the </strong><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?mainauthorItems=10&amp;search=8890B"><strong>Agilent 8890B gas chromatography system</strong></a></h3><ul><li>Brochure</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/br_8890b_gc_5994_9205en_agilent_fb5db29527.pdf"><strong>Full PDF for download</strong></a></li></ul><section><div><div><div><div><div><div><h4><strong>Analyze more samples every day with faster cycle times&nbsp;</strong></h4><p>The <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?mainauthorItems=10&amp;search=8890B"><strong>8890B GC </strong></a>provides faster maximum oven temperature ramps and cooldown rates for conventional dual-channel GC. If you want even faster cycle times, an optional rapid cooling fan is available.&nbsp;</p><h4><strong>Achieve excellent repeatability across multiple injections&nbsp;</strong></h4><p>Consistent retention time and area count performance are the cornerstone of what you can expect from the 8890B GC. The system also meets all specifications required for regulatory methods such as USP Method &lt;467&gt; (residual solvents).</p><h4><strong>Shine a new light on your connections and components&nbsp;</strong></h4><p>Make maintenance easier and faster with a built-in oven light that illuminates the internal space on the 8890B GC. That means you can perform tasks like troubleshooting and column installation in less time—and with fewer errors.</p><h4><strong>Boost GC performance with capillary flow technology&nbsp;</strong></h4><ul><li><strong>Backflush</strong> significantly reduces timing between injections, increasing productivity.&nbsp;</li><li><strong>Purged Ultimate unions</strong> provide leak-free connections, reducing downtime.&nbsp;</li><li><strong>Flow splitters</strong> enable data collection from up to three detectors.&nbsp;</li><li><strong>New CFT calculators</strong> let you download calculated setpoints to your method—avoiding time-consuming, error-prone manual input.&nbsp;</li><li><strong>Multidimensional chromatography:&nbsp;</strong><ul><li><strong>Deans Switch</strong> facilitates heart cutting, enabling resolution of trace compound in complex matrices.&nbsp;</li><li><strong>GC x GC flow modulation</strong> enables multidimensional chromatography without the need for cryogen</li></ul></li></ul><h4><strong>Helium conservation module&nbsp;</strong></h4><p>Extend the life of your helium tanks by up to 30 times. The Agilent helium conservation module allows you to use helium for your GC runs and switch to a different gas (typically nitrogen) when your GC is idle. That means you can achieve better control of laboratory operating expenses and avoid workflow disruptions.</p><h4><strong>Alternative carrier gas support&nbsp;</strong></h4><p>Alternative carrier gases like hydrogen and nitrogen are popular low-cost options.&nbsp;</p><p>The <strong>Agilent Hydrogen Sensor Module Series 2 </strong>option adds built-in peace of mind when operating with H2 gas.&nbsp;</p><p>The <strong>Agilent HydroInert source </strong>minimizes sensitivity loss and spectral anomalies associated with H2. It also:&nbsp;</p><ul><li>Maintains spectral fidelity, even for compounds highly susceptible to hydrogenation.&nbsp;</li><li>Improves peak shape for high-boilers, especially polycyclic aromatic hydrocarbons (PAHs)</li></ul><h3><strong>2. MDCW / William &amp; Mary: Decomposition Analysis Using Differing Data Processing Methods to Identify Volatile Organic Compounds</strong></h3><ul><li>Poster</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/P_25_Weina_2ae94f0998.pdf"><strong>Full PDF for download</strong></a></li></ul><section><div><div><div><div><div><div><p>When a body decomposes it emits volatile organic compounds (VOCs). VOCs from decomposing remains have been studied before,1 however there is a gap that remains in the knowledge on VOCs that evolve from submerged decomposing remains. 2 In this study, submerged animal tissue was tested to see how the VOCs can be utilized in forensic settings.&nbsp;</p><p>This study used data obtained last summer using comprehensive two-dimensional gas chromatography – time-of-flight mass spectrometry (GC×GC-TOFMS). Pigs (Sus scrofa domesticus) are often used as analogs in decomposition studies due to similarities with humans. 3 In this study, pork belly samples were submerged in mason jars filled with water and stored at different temperatures. The GC×GC-TOFMS instrument was used to collect odor from above water samples for a period of twelve days.</p><p>GC×GC is often used to analyze complex odor profiles. When analyzing samples with GC×GC, there is a lack of standardization to process the data acquired from time trials. There is a need to discover effective ways to track VOCs for chemical identification and longitudinal analysis.</p><p>The goal of this research was to compare different software approaches to analyze GC×GC longitudinal data to achieve accurate analyte identification, representation of data over time, and effective class characterization.</p><h4><strong>Methods</strong></h4><p>For the first four days, 5 mL of water was taken and run on the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/37"><strong>GC×GC-TOFMS</strong></a>. Thereafter, the samples were sampled and run every three days until day twelve. Data were analyzed initially using <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/41"><strong>ChromaTOF</strong></a> (LECO Corporation). The samples were then analyzed using <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/348"><strong>ChromaTOF Tile </strong></a>and <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/1873"><strong>ChromaTOF Sync 2D</strong></a> to compare how they can be used in a forensic setting.</p><p>Peak tables were curated in Tile and Sync 2D. Then, ChromaTOF was used as a guide to confirm which peaks were identified correctly. If the compound was correctly identified, the peak would be accepted or kept on the table. If not correctly identified, the peak would either be rejected or deleted. Once the tables were complete from the different software approaches, they were exported to Excel for further comparison.</p><p>In excel, the relevant hits that were identified as decomposition VOCs were compared across the software approaches. The compounds that were most commonly found were compared to existing literature on decomposition VOCs. From there, two tables were built; where one table was compounds confirmed with literature and the other table was compounds not confirmed with literature.</p><p>Comparison between software approaches included looking at different criteria to see which method was the most effective and efficient. The criteria included how long the software approach took, the number of compounds found in each software approach, the accuracy of peak area in the software approach compared to ChromaTOF data, and principal component analysis (PCA) comparison to see which software approach was best used for forensic practice or research.</p><h4><strong>Conclusions</strong></h4><p>Sync 2D showed the capability of showing trends in decomposition compounds</p><ul><li>This software approach can be used in research environment where longitudinal data is needed to determine the trends of decomposition data&nbsp;</li><li>Best purpose: research applications requiring longitudinal tracking&nbsp;</li></ul><p>Coefficient of Variance’s and Fold Change’s PCA plots showed their ability for clear class differentiation&nbsp;</p><ul><li>The two software approaches can be used to distinguish water containing decomposition in a crime scene&nbsp;</li><li>Best purpose: comparison at a single point and time [detailed analysis]&nbsp;</li></ul><p>Fisher Ratio showed a proficiency in identifying top differentiating compounds and showed aptitude for class differentiation&nbsp;</p><ul><li>The software approach would be helpful for cursory analysis for crime scene evidence&nbsp;</li><li>Best purpose: quick comparison of biggest difference for swift identification</li></ul><h3><strong>3. Shimadzu: Determination of Ester and Linolenic Acid Methyl Ester Contents in Biodiesel According to EN 14103:2020</strong></h3><ul><li>Application note</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/an_05_sca_180_054_en_93d1029b72.pdf"><strong>Full PDF for download</strong></a></li></ul><h5><strong>User Benefits</strong></h5><ul><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?mainauthorItems=1&amp;search=2060"><strong>NexisTM GC-2060</strong></a> provides reliable analysis of biodiesel samples regarding their ester and linolenic acid methyl ester contents using hydrogen as a cost-effective carrier gas&nbsp;</li><li>It delivers excellent repeatability and provides appropriate safety measures for the use of hydrogen as carrier gas&nbsp;</li><li>The optional multi-mode injection unit (MMI) offers performance equivalent to a conventional split-splitlessinjection unit (SPL), significantly reducing maintenance downtime</li></ul><p>Biofuels play an important role in enabling countriesto meet their greenhouse gas reduction targets. They can be produced from a range of raw materials, including plant oils, animal fats, and used cooking oils. Biodiesel is mainly being produced from rapeseed, soybean, and palm oils. Due to this diversity of feedstocks, continuous quality control is necessary as the quality of the raw material has an enormousimpact on the quality of the biodiesel.&nbsp;</p><p>The EN 14103:2020 describes the determination of total ester content and linolenic acid methyl ester content in biodiesel by means of gas chromatography with flame ionization detection (GC-FID). The total ester content covers a range of fatty acid methyl esters (FAME) from C6 to C24, and linolenic acid methyl ester is investigated separately as interfering reactive compound that might influence long-term stability of the biodiesel. According to the standard, the total ester content must be greater than 90 % (m/m) and the linolenic acid methyl ester content shall be between 1 and 15 % (m/m)1.</p><p>This study shows the analysis of biodiesel originating from rapeseed,soybean, and palm oil using the Nexis GC-2060.</p><h4><strong>Multi-Mode Injection Unit as Alternative&nbsp;</strong></h4><p>Shimadzu’s multi-mode injection unit (MMI) offers reliable splitsplitless mode functionality over a broad range of carbon numbers. It allows analysis of biodiesel samples with high repeatability and provides chromatographic results comparable to those measured with SPL as dedicated split-splitless injection unit. The use of MMI significantly shortens maintenance downtime from tens of minutes for a classical split-splitless injection unit to just a few minutes. Figure 3 gives a direct comparison of an exemplary rapeseed-based biodiesel sample measured with SPL (top) and MMI (bottom).</p><h4><strong>Conclusion</strong></h4><p><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?mainauthorItems=1&amp;search=2060"><strong>Nexis GC-2060</strong></a> provides reliable analysis of biodiesel samples regarding their ester and linolenic acid methyl ester content according to EN 14103:2020, covering the various ester types commonly in use. It allows repeatable analysis using hydrogen as a cost-effective carrier gas. The optional multi-mode injection unit (MMI) can be selected as alternative to a classical splitsplitlessinjection unit (SPL).</p><h3><strong>4. Waters Corporation / ASMS: Putting the (Atmospheric) Pressure on Forever Chemicals: A Targeted Analysis of GC Amenable PFAS using APGC–MS/MS</strong></h3><ul><li>Poster</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/labrulez-bucket-strapi-h3hsga3/720009413_dfa4082b45.pdf"><strong>Full PDF for download</strong></a></li></ul><p>This poster presents a targeted analytical method for the determination of gas chromatography (GC)-amenable PFAS compounds using atmospheric pressure gas chromatography coupled with tandem mass spectrometry (APGC-MS/MS). The study addresses a key limitation of conventional LC-MS/MS methods, which are highly effective for many PFAS but less suitable for more volatile species such as fluorotelomer alcohols (FTOHs), fluorotelomer acrylates (FTAcr), and fluorotelomer acetates (FTOAc). By incorporating GC-MS/MS analysis, laboratories can obtain a more complete characterization of PFAS contamination across environmental, biological, and food-contact materials.</p><p>The analytical workflow utilized an <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?mainauthorItems=10&amp;search=8890"><strong>Agilent 8890 gas chromatograph</strong></a> equipped with an autosampler and coupled to a <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/554"><strong>Waters Xevo TQ Absolute tandem mass spectrometer</strong></a> operated with APGC ionization in positive-ion mode. Separation was performed on an Rtx-200 capillary column, while data acquisition and quantification were managed using <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/1544"><strong>waters_connect software</strong></a>. Unlike traditional electron ionization (EI), APGC generated intact protonated molecular ions, significantly improving sensitivity and selectivity for GC-amenable PFAS. A method covering 35 PFAS compounds was developed, achieving lower limits of quantification (LLOQs) of 0.025–0.1 ng/mL for most analytes.</p><p>Several sample types were evaluated, including wastewater, surface water, soil, fish tissue, shrimp, and food-packaging materials. Environmental and biological samples were prepared according to EPA Method 1633A and had previously been analyzed by LC-MS/MS, allowing the GC-MS/MS method to serve as a complementary technique. Food-packaging samples were extracted with methanol containing ammonium hydroxide and analyzed for targeted PFAS. While no target PFAS were detected in the tested packaging materials, multiple GC-amenable PFAS were found in environmental samples. Fluorotelomer alcohols were the most frequently detected compounds, with wastewater and ski-wax-impacted soils showing the highest concentrations.</p><p>The results demonstrate that APGC-MS/MS provides a sensitive and robust solution for the analysis of volatile PFAS classes that may be missed by LC-MS/MS alone. The method delivered accurate quantification, effective chromatographic separation, and reliable recovery in spiked samples. The authors conclude that combining APGC-MS/MS with established LC-MS/MS workflows enables a more comprehensive assessment of PFAS contamination, particularly for emerging fluorotelomer compounds and other GC-amenable PFAS that are increasingly relevant in environmental monitoring and food-packaging investigations.</p></div></div></div></div></div></div></section></div></div></div></div></div></div></section>

News from LabRulezGCMS Library - Week 26, 2026

Article

Product

Application

Academy

Video

Software

Poster

Since 1991 DataApex develops and manufactures chromatography data stations. DataApex is constantly striving to provide users with efficient and up-to-date tools for chromatography data processing.

DataApex

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

My main interest is the identification of organic compounds by mass spectrometry in organic mixtures.

James Little/Mass Spec Interpretation Services

New Food magazine

Separation Science

Agilent Technologies

Phenomenex

PerkinElmer

Restek Corporation

Waters Corporation

<h4>Key Learning Points:</h4><ul><li><strong>Identify the common challenges associated with solid phase extraction methods</strong><br>&nbsp;</li><li><strong>Understand and troubleshoot the recovery, contamination and reproducibility issues</strong><br>&nbsp;</li><li><strong>Learn how to find and apply solutions to develop robust and reproducible extraction methods for their sample preparation needs</strong></li></ul><h4>Who Should Attend:</h4><ul><li>Any scientists who wants to learn about solid phase extraction and it’s associated challenges, common troubleshooting steps and solutions to develop robust and reproducible extraction methods for their sample preparation needs</li></ul><blockquote><p><strong>Presnter: </strong>Namrata Saxena (Technical Manager, Phenomenex)</p><p>Namrata is the Technical Manager for the Asia-Pacific region in Phenomenex and is based in Sydney, Australia. As a member of the global technical team, she is responsible for assisting external customers as well as internal marketing and sales teams of Phenomenex for multifarious technical queries. She specifically support company’s bio-products portfolio through external and internal seminars/webinars, trainings and also contribute in biologics related technical content creation.</p><p>Before joining Phenomenex she had worked as a Product Specialist and spent several years in stationary phase chemistry, column manufacturing and method development groups in a German company Bischoff Chromatography GmbH.</p><p>Namrata has a post graduate degree with specialization in Analytical Chemistry. Her competence and focus lies in biotherapeutics characterization through liquid chromatography, antibodies and oligonucleotide chemistry, gene therapy and new bio-therapeutic modalities.</p></blockquote>

Phenomenex: Solid Phase Extraction Troubleshooting Tips and Tricks

Solid Phase Extraction Troubleshooting Tips and Tricks

Identify the common challenges associated with solid phase extraction methods.

<p><strong>This is the second in our three-part Ask Me Anything webinar series on one of the most frequently asked about topics - processing data. The Components tab in the Processing Method displays many fields of information, giving you options about peak identification, calibration, reference peaks, and fields used in conjunction with custom fields.</strong></p><p><strong>In Part 2 of this series, we will discuss:</strong></p><ul><li>Peak identification</li><li>Calibration options including external and internal calibration</li><li>Reference Peaks for peak identification and calibration</li><li>Impurity fields</li><li>CCompRef1, 2, 3, and CConst1-7</li><li>Fields related to chemical structures</li></ul><p>Please join us for a lively discussion as we explore this topic. As always, please bring your questions for this exclusive opportunity to ask our experts anything about Empower Software.</p><blockquote><p><strong>Presenter: </strong>Neil Lander (Principal Product Manager, Informatics, Waters Corporation)</p><p>Neil has worked for Waters Corporation since 1994 and has held a variety of positions including Technical Support Specialist, Technical Trainer, Manager Customer Education and currently, Principal Marketing Manager focusing on Informatics solutions. He provides internal support for Empower Chromatography Data System and is focused on developing laboratory software solutions that help organizations achieve their scientific and operational objectives. Prior to joining Waters, he was an analytical chemist where he gained experience in both the cosmetics and specialty chemical industries.</p></blockquote>

Waters Corporation: Empower Tips: Ask Me Anything About Processing Data - Part 2

Empower Tips: Ask Me Anything About Processing Data - Part 2

This is the second in our three-part Ask Me Anything webinar series on one of the most frequently asked about topics - processing data.

Empower Tips: Ask Me Anything About Processing Data

<p><strong>Who Should Attend:</strong></p><ul><li>Anyone who would like to gain more knowledge on PAH analysis with GC columns&nbsp;</li><li>Any scientists who is struggling with resolution on PAHs with GC analysis</li></ul><p><strong>Key Learning Points:</strong></p><ul><li>Learn about columns with different selectivities in PAH analysis&nbsp;</li><li>Understand the pain point in PAH analysis in food and environmental industry</li><li>Find what are the parameters to adjust to improve the resolution in GC&nbsp;</li></ul><blockquote><p><strong>Presenter:</strong> Grace Guo (Senior Technical Specialist, Phenomenex)</p><p>Grace Guo graduated from the Johns Hopkins University with a Master’s degree in Material Science and Engineering. She joined Phenomenex Technical Team in 2017 providing technical support globally. With more than 8 years of experience on SPE, HPLC and GC, she delivered 50+ seminars and webinars globally covering food and environmental, clinical, pharma and biopharma industry.&nbsp;</p></blockquote>

Phenomenex: GC Column Selectivities for PAH Compounds

GC Column Selectivities for PAH Compounds

Learn about columns with different selectivities in PAH analysis

<p><strong>Discover how Process NIR technology from Perten, a PerkinElmer company, can boost profitability in food processing by reducing waste, lowering energy costs, and improving operational efficiency.</strong></p><p>In today’s fast-paced world, we’re flooded with information, choices, and challenges. As David Honigs, Senior Field Applications Scientist at Perten, puts it, “Some things will be helpful, others not so much. But like NIR, we can’t know what really matters unless we take a close look.” Process NIR technology from Perten, a PerkinElmer company, offers that crucial insight—providing real-time, non-invasive data to help food processors identify what truly impacts efficiency and profitability. Whether you need to reduce waste, optimize energy use, or streamline operations, Process NIR adapts to your specific goals. This webinar will show how NIR technology can provide the precision and control your operations need to stay competitive in an evolving industry.</p><p><strong>Process NIR technology offers a solution by providing real-time, non-invasive data that enables precise control over production processes. By adopting Process NIR, you can</strong></p><ul><li>Reduce waste: Minimize product loss due to errors and inconsistencies.</li><li>Lower energy costs: Optimize processes to reduce energy consumption.</li><li>Improve operational efficiency: Streamline workflows and enhance overall performance.</li></ul><p><strong>This webinar will explore common challenges faced by food processors and demonstrate how Process NIR can address them. You’ll learn about:</strong></p><ul><li>Real-world applications: Discover how companies are successfully using Process NIR to improve their operations.</li><li>Future trends: Understand the latest developments in NIR technology and its potential impact on the industry.</li><li>Practical advice: Gain insights into how to integrate Process NIR into your existing processes.</li></ul><p>Register now to join us live on 6th November 2024</p><blockquote><p><strong>Presenter:</strong> David Honigs, Senior Field Applications Scientist, Perten</p><p>For the last almost 20 years David has worked at Perten (part of Perkin Elmer) on Near Infrared Instrumentation and applications in the food industry. He has 35 research papers as listed on ResearchGate.com. He has 10 issued US patents.</p><p><strong>Presenter: </strong>Gustaf Upmark, Product Manager for Process NIR and Software at Perten Instruments/PerkinElmer.</p><p>With a background in Electronics. Gustaf started with NIR and Chemometrics in 1998. Worked at major suppliers since 2002. Proficient in sales, service, and applications. Joined the Perten Applications team in 2016. Product Manager for Process NIR and software from January 2024.</p><p><strong>Presenter: </strong>Stefan Lundgren, Business Leader for Process NIR solutions in EMEAI at Perten Instruments/PerkinElmer.</p><p>Background in Electronics. Working with NIR since 1987. In the early days with another Scandinavian manufacturer but since 2007 working with all aspects of the Perten range of NIR products.</p></blockquote>

New Food Magazine: Process NIR’s impact on profitability in food processing

Process NIR’s impact on profitability in food processing

Process NIR technology from Perten, a PerkinElmer company, can boost profitability in food processing.

<p><strong>Following up from our very successful previous sessions, we are delighted to offer another panel discussion in the ever-popular “Ask the Agilent Experts” series.</strong></p><p><strong>Have you ever had a question about your GC/GCMS analysis and thought, “I have no idea what to do,” or that since the question seemed so simple, everyone must already know the answer and “Am I the only one who doesn’t know what to do?” We can assure you that you are not alone.</strong></p><p>If you have a question, we can guarantee that you are not the first…nor the last person to ask the question, especially when it comes to gases. Sometimes the simplest of questions can have the most complex answers. A question about the leaks on your mass spectrometer can lead to a discussion about how gas quality impacts sensitivity. A question about what to do when converting a method from helium to hydrogen carrier gas can lead to a discussion about column dimensions, column bleed, and what thermal stability means. There’s no such thing as an easy answer because the answer always depends on many different factors.</p><p>Experts from Agilent, as well as from the field, will discuss some of the most frequently asked questions about GC and GCMS (which may seem like simple questions but have anything but simple answers). We'll also answer new questions that we hope you will submit to us.</p><p><strong>By attending this webinar, you will learn:</strong></p><ul><li>How different carrier gases impact results and what to consider when converting methods from one carrier gas to another.</li><li>What is column bleed, how it relates to thermal stability, how your carrier gas can impact it, and why it matters even when using selective detectors like mass specs.</li><li>What is the difference between gas cylinders and gas generators, and should you consider using gas saving measures when using a generator.</li></ul><p><strong>What you need to know:</strong></p><p><strong>Date: 7th November, 2024</strong></p><p><strong>Start times:</strong></p><ul><li>Broadcast #1: 7th November - 7:00 PST (Los Angeles) / 9:00 CST (Chicago) / 10:00 EST (New York) / 15:00 GMT (London) / 16:00 CET (Paris/Berlin)</li><li>Broadcast #2: 7th November - 11:00 PST (Los Angeles) / 13:00 CST (Chicago) / 14:00 EST (New York)</li><li>Broadcast #3: 8th November - 8:30 IST (New Delhi) / 11:00 SGT (Singapore) / 11:00 CST (Shanghai) / 12:00 JST (Tokyo) / 14:00 AEDT (Sydney) / 16:00 NZDT (Auckland)</li></ul><p>Duration: Approximately 60 minutes</p><blockquote><p><strong>Presenter:</strong> Vanessa Abercrombie (MFS, GC Applications Chemist, Agilent Technologies)</p><p>Vanessa Abercrombie is a GC applications chemist at Agilent Technologies in Folsom, California, USA. Vanessa has a broad background in GC and GC/MS, including experience as an instrument chemist at Bode Technology in Virginia working under contract to the FBI’s Laboratory Division. Prior to that, Vanessa worked for ETS Labs in St. Helena, California, as an analytical chemist, where she researched and developed quantitative separations by GC/MS and UHPLC for beer, wine, and spirits. She holds a Masters of Forensic Science from The George Washington University and a Bachelor of Arts in Chemistry from Sonoma State University.</p><p><strong>Presenter: </strong>Ed Connor (Product Manager, PEAK Scientific Instruments)</p><p>Ed joined PEAK in 2013 as a GC product specialist and then moved to product management. He’s been working on many collaborative projects with PEAK customers and major instrument manufacturers worldwide. The main focus of these collaborations has been looking at conversion from helium to hydrogen carrier gas for GC applications. Ed completed his Dr.Sc. at ETH Zurich in 2007 using GC-MS to look at herbivore-induced plant volatiles and their interaction with beneficial insects. He then joined the University of Zurich where his work focused primarily on floral volatile analysis using a variety of volatile collection methods, GC-MS, and GC-FID.</p><p><strong>Moderator: </strong>Diane Turner (Director &amp; Senior Consultant, Anthias Consulting Ltd)</p><p>A Warwick University graduate, Diane completed her Master's in analytical chemistry and started her career in environmental chemistry, later gaining significant experience as an applications chemist. Diane’s area of research through her PhD studies at The Open University was disease diagnosis. She has developed methods and given support and training for companies in most industries around the world for more than 20 years. Diane holds voluntary roles with The Royal Society of Chemistry and other scientific organizations.</p></blockquote>

Separation Science: Ask the Agilent Experts Series – Part 6: The Gas Edition

Ask the Agilent Experts Series – Part 6: The Gas Edition

GC and GC/MS scientists discuss and answer more of your most frequently asked questions.

<p><strong>Following the success of our last Ask the Expert session, we’re back with a part 2 focusing on GC and GC/MS workflows. This time, our panel is discussing your questions on maintenance, troubleshooting, and column care. Whether you’re aiming to improve accuracy, solve recurring issues, maximize productivity, and extend the life of your GC or GC/MS system, this session is for you. Our expert panel will address key challenges and share best practices, tips, and tricks to keep your GC/GCMS in peak condition while answering your burning questions.</strong></p><p><strong>Key Topics:</strong></p><ul><li>How to maintain your GC/GCMS for optimal performance</li><li>Troubleshooting common issues in GC and GC/MS</li><li>Best practices for column care and extending your column’s life</li><li>Tips for improving accuracy and reproducibility in results</li><li>How to ensure efficiency and productivity across your workflows</li></ul><p><strong>Who Should Attend:</strong></p><ul><li>Lab managers, analysts, and technicians using GC or GC/MS</li><li>Anyone looking to optimize their GC workflows for long-term performance</li></ul><blockquote><p><strong>Presenter: </strong>Dr. Anshu Kumari Singh (Technical Support Manager, Agilent Technologies)</p><p>Dr. Anshu Kumari Singh is the Technical Support Manager for India in the Chemistries and Supplies Division. She has more than 20 years of experience in this industry. She is leading a team of highly qualified Individuals responsible for providing technical support to customers. She provides support to customers on queries related to applications, products and troubleshooting for GC and LC columns and Supplies. She also conducts workshops, trainings and seminars for the customers helping them in understanding the chemistry behind GC &amp; HPLC columns and Sample Preparation Products. Dr. Anshu holds a Doctorate degree from Indian Agricultural Research Institute, New Delhi and is based out of Delhi.</p><p><strong>Presenter:&nbsp;</strong> Mr. Praveen Arya (Application Engineer - GC/MS, Agilent Technologies)</p><p>Praveen Arya, Application Engineer at Agilent technologies, has a commitment and appreciation for Gas-phase residue applications. In 2005, Mr. Praveen Arya completed his M.Sc. in Food Technology . After post-graduation, he served as a Senior Analyst at SGS, Gurgaon- a commercial testing laboratory for 6 years and developed expertise in Residue analysis using sophisticated chromatographic instruments such as LCMS and GCMS. After that, in 2011, He joined Agilent Technologies as an Application Engineer where he supported country-wide GCMS customers for resolving application issues and method development. He has more than 18 years of experience in residue analysis in food and environmental samples using various high end chromatographic and spectrometric techniques (GC, GCMS, GCMS/MS, TDS, Headspace, Purge &amp; trap etc.). His area of specialization includes new analytical method development and validation as per national and international guidelines.</p><p><strong>Presenter:&nbsp;</strong> Mr. Anuraj Kumar (Customer Application Engineer - GC/GCMS, Agilent Technologies)</p><p>Anuraj has overall 10+ years of experience in handling Gas Phase products. Working with Agilent since 4+ years and looking for GC &amp; GCMS products as core Post Sales application engineer for PAN India. Previously he had worked with multiple pharmaceutical R&amp;D as an Research Scientist in Teva, Fresenius kabi &amp; Jubilant Life Sciences.</p><p><strong>Presenter:&nbsp;</strong> Mr. Sunil B Lakhmapure (Technical Support Specialist, Agilent Technologies)</p><p>Sunil holds 19 year plus experience in the analytical field with major exposure to LC/GC with Single Quad, Triple Quad and high resolution (QToF) mass spectroscopy. Started career in Pharma R&amp;D as a scientist with hands on experience on high end instruments like LC/MS, XRD &amp; NMR. Developed &amp; published application notes using Chromatographic techniques on real world samples/issues at various levels.</p></blockquote>

Agilent: Decoding GC & GC/MS: Maintenance, Troubleshooting, and Best Practices

Decoding GC & GC/MS: Maintenance, Troubleshooting, and Best Practices

Challenges, best practices, tips, and tricks to keep your GC/GCMS in peak condition.

GC & GC/MS: Maintenance, Troubleshooting, Best Practices

<p><span data-bind="expander:{'expandText': moreButtonText(), 'userCollapseText': lessButtonText(), 'text':getWebinarInfo().description}"><strong>This presentation will cover method development strategies and considerations for Solid-Phase Microextraction (SPME).</strong></span></p><p><span data-bind="expander:{'expandText': moreButtonText(), 'userCollapseText': lessButtonText(), 'text':getWebinarInfo().description}">Aspects of method development to be covered will span across SPME coating selection, as well as critical sampling parameters.</span></p><p><span data-bind="expander:{'expandText': moreButtonText(), 'userCollapseText': lessButtonText(), 'text':getWebinarInfo().description}">Overcoming the challenges of developing quantitative SPME methods will be shown through examples of applications within the food and environmental areas.</span></p><p><span data-bind="expander:{'expandText': moreButtonText(), 'userCollapseText': lessButtonText(), 'text':getWebinarInfo().description}">The discussion will further explore how SPME can enhance both the efficiency and robustness of sample preparation workflows.</span></p>

RESTEK: Optimizing Solid-Phase Microextraction (SPME): Strategies for Robust and Efficient Sample Preparation

Optimizing Solid-Phase Microextraction (SPME): Strategies for Robust and Efficient Sample Preparation

This presentation will cover method development strategies and considerations for Solid-Phase Microextraction (SPME).

Optimizing Solid-Phase Microextraction (SPME)

<p><strong>The two main worklflows of the LDIR will be discussed and demonstrated.</strong></p><blockquote><p><strong>Presenter: </strong>Louis Tisinger, PhD (Application Engineer, Molecular Spectroscopy, Agilent Technologies, Inc.)</p><p>Louis (Lou) Tisinger has a Ph.D. in Analytical Chemistry from Miami University in Oxford Ohio, where his graduate research involved the study of ATR imaging and microscope performance in vibrational spectroscopy. Most of his career has been related to pre- and post-sales support of FTIR spectrometers, microscopes, imaging systems, and thermal analytical instruments, focusing on analyzing customer samples, demonstrations, post-sales training, troubleshooting, and R&amp;D.</p></blockquote>

Agilent Technologies: Spectroscopy Digital Workshops and Bootcamps

Agilent 8700 LDIR Workflows

The two main worklflows of the LDIR will be discussed and demonstrated.

<p><strong>As analytical workloads have increased, labs analyzing Volatile Organic Compounds (VOCs) in soils and water by purge and trap with a gas chromatograph mass spectrometer (P&amp;T and GC/MS) according to EPA Method 8260 are facing challenges in maintaining efficiency, productivity, and profitability. Autosampler reliability, moisture management, carryover, contamination, and linearity over a dynamic range combined with high cost of helium and supply chain, are a few of the causes affecting labs’ operational efficiency.</strong></p><p>Discover how the Teledyne Tekmar Atomx XYZ P&amp;T System and the PerkinElmer GCMS 2400 System can help labs performing VOC analysis, according to EPA 8260, with helium gas savings and with efficient sample prep including improved water management, reduced peak interference, increased column lifespan, and reduced carryover and contamination from sample to sample. With the intuitive PerkinElmer SimplicityChrom CDS Software, fast data processing and review enable even more productivity, with any expertise level lab staff.</p><p>Join our 30-minute presentation, where you will discover strategies to conquer the typical analytical challenges posed by P&amp;T with GC/MS while optimizing results and maximizing uptime. The latest technologies compliant with EPA 8260 will be presented, ensuring you stay at the forefront of environmental analysis.</p>

PerkinElmer: When Productivity Meets Challenging Matrices: Tips and Tricks for GC/MS and Purge and Trap for EPA 8260 Compliance

When Productivity Meets Challenging Matrices: Tips and Tricks for GC/MS and Purge and Trap for EPA 8260 Compliance

Discover strategies to conquer the typical analytical challenges posed by P&T with GC/MS while optimizing results and maximizing uptime.

Productivity Tips for GC/MS and EPA 8260 

<div><div container-id="cq-colctrl-lt0" comp-id="A1"><div><p><strong>Join us for an insightful session on Vaya Method Development Tips and Tricks! Dive into the world of Spatially Offset Raman Spectroscopy (SORS) and the Agilent Vaya Handheld Raman. We'll explore the unique value proposition of SORS and provide guidance on developing robust methods on the Vaya for ID testing in a manufacturing environment. Don't miss this opportunity to enhance your understanding and skills!</strong></p><h5><strong>Key learning objectives:</strong></h5><ul><li>What is spatially offset Raman spectroscopy?</li><li>How to interpret the information supplied by the Vaya?</li><li>How to develop robust methods on the Vaya?</li><li>What is a custom method on Vaya?</li></ul><h5><strong>Who should attend?</strong></h5><p>All Vaya user or any pharma/biopharma customers interested to know more on through-packaging raw materials identification.</p><blockquote><p><strong>Presenter:</strong> Frederic Prulliere (Product Manager Raman ID, Agilent Technologies)</p><p>Frederic Prulliere is the Product Manager for the Raman ID product line at Agilent Technologies. Prulliere leads the product development of spatially offset Raman spectroscopy-based solutions, particularly for verifying raw materials at reception. He joined Agilent Technologies in 2012 as a business development manager for mobile Fourier transform infrared spectroscopy (FTIR).</p></blockquote></div></div></div>

GCMS webinars focusing on Tips & Tricks - page 6