<p><strong>The quality of drinking water is under closer scrutiny than ever before. Beyond microbiological safety and major chemical contaminants, trace-level organic compounds increasingly determine whether water is perceived as clean, safe, and acceptable by consumers. Among these substances, volatile organic compounds (VOCs) play a central role — both from a regulatory and a sensory perspective.</strong></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Fisher_Scientific_VOC_Analysis_in_Drinking_Water_Achieving_ppt_Level_Sensitivity_with_ITEX_Dynamic_Headspace_GC_MS_b4de2f994a.jpg" alt="Thermo Fisher Scientific: VOC Analysis in Drinking Water: Achieving ppt-Level Sensitivity with ITEX Dynamic Headspace GC-MS" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Fisher_Scientific_VOC_Analysis_in_Drinking_Water_Achieving_ppt_Level_Sensitivity_with_ITEX_Dynamic_Headspace_GC_MS_b4de2f994a.jpg 245w," sizes="100vw" width="1024" height="512"></p><p>Modern analytical laboratories face a dual challenge: complying with stringent legal requirements while simultaneously detecting compounds that are noticeable by humans at concentrations far below established health-based limits. This is particularly true for odor-active VOCs, where customer complaints may arise even when water is fully compliant.</p><h3><strong>What are VOCs — and why are they so challenging?</strong></h3><p>VOCs are a heterogeneous group of compounds defined primarily by their physical properties rather than their chemical structure. They typically exhibit:</p><ul><li>Low molecular weight</li><li>Relatively low boiling points (approximately 50–260 °C)</li><li>High vapor pressure</li><li>Low to moderate solubility in water</li></ul><p>This group includes substances such as <strong>light halogenated hydrocarbons (LHKW)</strong>, <strong>aromatic hydrocarbons (BTEX)</strong>, and <strong>trihalomethanes (THMs)</strong>, many of which are regulated in drinking water due to toxicological concerns or their role as disinfection by-products from an analytical standpoint, these same properties make VOCs difficult to quantify at ultra-trace levels. Losses during sample handling, insufficient enrichment, and water interference can all limit sensitivity — especially when target concentrations are in the low µg/L or ng/L range.</p><h3><strong>Regulatory pressure drives method sensitivity</strong></h3><p>European drinking water legislation defines not only maximum allowable concentrations but also strict performance criteria for analytical methods. <a target="_blank" rel="noopener noreferrer" href="https://eur-lex.europa.eu/eli/dir/2009/90/oj/eng?utm_source=chatgpt.com"><strong>Directive 2009/90/EC</strong></a> requires limits of quantification to be no higher than <strong>30% of the applicable environmental quality standard</strong>. For many VOCs, this translates directly into <strong>ppt-level analytical requirements</strong>.</p><p>As a result, laboratories must rely on techniques that go beyond conventional workflows while still maintaining robustness, reproducibility, and ease of use.</p><h3><strong>Headspace GC-MS: established — but not always sufficient</strong></h3><p>Headspace GC-MS remains a cornerstone of VOC analysis in water. <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/64"><strong>Static headspace</strong></a><strong> (SHS)</strong> methods are widely used due to their simplicity, cleanliness, and compatibility with routine laboratories. However, SHS relies on a single equilibrium extraction of the gas phase, which can limit sensitivity — particularly for very volatile compounds or analytes present at trace concentrations.</p><p>For these applications, additional enrichment steps are often required.</p><h3><strong>ITEX dynamic headspace: turning sampling into enrichment</strong></h3><p><a target="_blank" rel="noopener noreferrer" href="https://www.thermofisher.com/order/catalog/product/1R77010-1125"><strong>ITEX (In-Tube Extraction) Dynamic Headspace</strong></a> bridges the gap between simplicity and sensitivity. Unlike static headspace, ITEX repeatedly draws defined volumes of headspace gas through an adsorbent trap, actively enriching analytes before injection into the GC system.</p><p><strong>This dynamic approach offers several decisive advantages:</strong></p><ul><li>True analyte enrichment directly from the headspace</li><li>Solvent-free sample preparation</li><li>Reduced risk of contamination and carryover due to a closed, syringe-based design</li><li>Straightforward maintenance with easy access to trap and syringe components</li></ul><p>By passing the headspace through the trap multiple times, ITEX effectively increases the sampled analyte mass without increasing sample volume — a key advantage for ppt-level analysis.</p><h3><strong>Tailored adsorbents for targeted performance</strong></h3><p><strong>ITEX performance can be optimized through the selection of appropriate adsorbent materials:</strong></p><ul><li><strong>Tenax TA</strong> for volatile and semi-volatile compounds</li><li><strong>Carbopack</strong> for hydrophobic analytes with minimized water displacement</li><li><strong>Carboxen and Carbosieve materials</strong> for very volatile compounds such as vinyl chloride</li></ul><p>This flexibility allows laboratories to adapt ITEX methods to a wide range of drinking water applications, from regulatory VOC panels to specialized odor investigations.</p><h3><strong>Managing water — without compromising sensitivity</strong></h3><p>Water is often the hidden enemy of trace VOC analysis. In ITEX, excess water can be efficiently removed by purging the trap with inert gas at low temperature before thermal desorption. The trap itself can then be heated to temperatures of up to <strong>350 °C</strong>, ensuring complete desorption of analytes while maintaining excellent repeatability.</p><p>Carryover testing demonstrated values of ≤0.027% for all analytes, even without blank subtraction — a critical requirement for trace analysis in regulated environments.</p><h3><strong>Chromatographic focusing for very volatile compounds</strong></h3><p>Highly volatile VOCs remain chromatographically challenging, even after enrichment. Combining ITEX with <a target="_blank" rel="noopener noreferrer" href="https://www.thermofisher.com/content/lifetech/global/en/home/industrial/chromatography/gas-chromatography-gc/gc-systems/modules.html"><strong>PTV injection</strong></a><strong> and dedicated focusing liners</strong> significantly improves peak shape and signal-to-noise ratio. This double-focusing approach is especially effective for compounds such as vinyl chloride and other light halogenated hydrocarbons. When paired with <strong>SIM acquisition in </strong><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/484"><strong>GC-MS</strong></a>, the result is robust, sensitive, and selective detection across a broad VOC range.</p><h3><strong>Taste and odor: why ppt really matters</strong></h3><p>One of the most demanding applications in drinking water analysis is the detection of odor-active compounds such as <strong>geosmin</strong>. Produced naturally by cyanobacteria and actinomycetes, geosmin causes an earthy, musty taste and odor that consumers can detect at concentrations as low as <strong>5–10 ng/L</strong>.</p><p>Although geosmin poses no health risk, even trace levels can trigger complaints and damage public trust. ITEX Dynamic Headspace GC-MS enables reliable detection well below the sensory threshold, supporting proactive water quality management rather than reactive troubleshooting.</p><h3><strong>Automation and flexibility for the modern laboratory</strong></h3><p>Drinking water laboratories often analyze a wide range of sample types and concentration levels. Automated platforms such as the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/422"><strong>TriPlus RSH SMART</strong></a><strong> autosampler</strong> support multiple injection and sampling techniques — including liquid injection, static headspace, SPME, and ITEX — with automatic tool change functionality.</p><p>Intelligent sequence control and consumable monitoring help laboratories maximize productivity while maintaining consistent analytical performance.</p><h3><strong>Conclusion: a future-proof approach to VOC analysis</strong></h3><p>ITEX Dynamic Headspace has proven to be a powerful and versatile alternative to purge-and-trap for the analysis of VOCs in drinking water. Its ability to deliver <strong>ppt-level sensitivity</strong>, combined with operational simplicity and excellent robustness, makes it ideally suited for both regulatory compliance and advanced odor analysis.</p><p>When integrated with PTV injection and SIM-based GC-MS detection, ITEX-DHS supports reliable quantification of even the most challenging VOCs — helping laboratories meet today’s requirements while preparing for tomorrow’s expectations</p><p><strong>Call to action</strong>:</p><p>To learn more about this interesting technology in a FREE webinar, register here:</p><ul><li><a target="_blank" rel="noopener noreferrer" href="https://event.on24.com/wcc/r/5250532/C85F8F6AC85928EE5DB65E38D3C9B23F"><strong>April 23-Trinkwasserübewachung mit der ITEX</strong></a></li><li><a target="_blank" rel="noopener noreferrer" href="https://event.on24.com/wcc/r/5250534/258DDD452DE6AAA5FDEB0E72CBF70889"><strong>June 11th VOC Analytik in Trinkwasser mittels Headspace GC-MS und ITEX</strong></a></li></ul><h3><strong>Acknowledgement</strong></h3><p>I would like to thank <strong>Dr. Klaus Schrickel</strong>, Thermo Fisher Scientific Dreieich, Germany, for the contribution to this blog.</p><ul><li><strong>Visit us on&nbsp;</strong><a target="_blank" rel="noopener noreferrer" href="https://www.linkedin.com/showcase/72003132/admin/dashboard/"><strong><u>LinkedIn:</u></strong></a>&nbsp;#GC #GC/MS # ITEX #Headspace</li></ul><blockquote><h5><strong>Petra Gerhards</strong></h5><p>Petra Gerhards, Dipl-Ing, is Regional Marketing Manager of GC and GC-MS for EMEA at Thermo Fisher Scientific. She has more than 29 years of experience in the fields of GC-MS, SPE and LC-MS. Since joining the regional team she has contributed to workflow solutions combining vials and closures with SPE solutions, GC-MS and LC-MS. She works with KOL's on data for regional specific marketing campaigns, organizes in-house seminars and works on customer specific solutions. Her main expertise is in the field of doping and drugs-of-abuse analysis.</p></blockquote>

VOC Analysis in Drinking Water: Achieving ppt-Level Sensitivity with ITEX Dynamic Headspace GC-MS

<h4><strong>The problem&nbsp;</strong></h4><p>We live in a “global village” but we are all different and we use many different languages to communicate.&nbsp;</p><p>Even when people speak the same language, the same words may be used with different meanings. See, for example, some different uses of the word “standard” in English – a normative document, a solution of known concentration or even a type of flag.&nbsp;</p><p>Even in the same area of activity misunderstandings do occur which may result in a waste of time and money, or even worse consequences.&nbsp;</p><p>When talking about laboratory tests, lack of a full understanding of key terms and inappropriate translations leaves room for different interpretations of stated requirements. For example, there have historically been a number of different but related uses of the term ‘<strong>detection limit’</strong>. This may lead to inadequate fulfilment of those requirements, thus becoming an obstacle to the production of analytical data that is fit for its intended use. A shared interpretation of concepts related to quality in measurement between laboratories and accreditation bodies is also crucial for a fair and harmonised approach to laboratory assessment across the world.&nbsp;</p><h4><strong>A common language&nbsp;</strong></h4><p>We need a <strong>common language</strong>; clear and unambiguous. We need a common vocabulary to provide consistent definitions of concepts with their associated terms. To this end, several organisations participate in a joint effort to develop and maintain an <strong>international vocabulary of metrology</strong> (VIM) [1], which aims to achieve a unique understanding of concepts related to measurements across all sectors. The VIM is a normative reference in the standards <strong>ISO/IEC 17025, ISO 15189 and ISO/IEC 17043</strong>, and is therefore a key document for all organisations seeking accreditation.&nbsp;</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Eurachem_You_talk_we_understand_The_way_out_of_the_tower_of_Babel_Standards_8d947dbd5f.jpg" alt="Eurachem: You talk, we understand – The way out of the tower of Babel_A common language" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Eurachem_You_talk_we_understand_The_way_out_of_the_tower_of_Babel_Standards_8d947dbd5f.jpg 245w," sizes="100vw" width="1126" height="499"></p><h4><strong>Is this enough?&nbsp;</strong></h4><p>For laboratory staff some problems still stand and need to be addressed:&nbsp;</p><ul><li>Many people are confused about both concepts and terms.&nbsp;</li><li>It may be difficult to understand the “formal” VIM definitions – they are short statements intended to apply to many different measurement sectors.</li><li>Translations into local languages may add to the confusion, e.g. if different terms are used in different sectors for the same VIM concept and the translator overlooks this issue.</li><li>Some substantial changes to terminology have been made in an attempt to accommodate chemical and biological measurements. Some “old” concepts still stand but have new names, e.g. “within laboratory reproducibility” vs. “intermediate precision”.&nbsp;</li></ul><p>To address these issues Eurachem has produced a guide [2] which provides an accessible reference containing simple and in context explanations of terms most relevant to analysts, with additional examples relating those concepts to chemical and biological measurements.&nbsp;</p><h4><strong>Do you understand the meaning of these terms?&nbsp;</strong></h4><p>Are you interested in a <strong>quantity</strong> or a quality? Depending on the answer, will you use a <strong>measurement</strong> <strong>procedure</strong> or an examination? Is method <strong>verification</strong> the same or less demanding than method <strong>validation</strong>? Do you need a <strong>calibration</strong> or just performance verification? Do you have a <strong>measurement standard</strong> in your laboratory? Is <strong>metrological traceability</strong> something you worry about? These are examples of the terms supporting the reliability of any measurement result that need to be clearly understood.&nbsp;</p><h5><strong>Example – Accuracy, trueness, precision: are they synonyms?&nbsp;</strong></h5><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Eurachem_You_talk_we_understand_The_way_out_of_the_tower_of_Babel_accuracy_231e1e005e.jpg" alt="Eurachem: You talk, we understand – The way out of the tower of Babel_Example – Accuracy, trueness, precision" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Eurachem_You_talk_we_understand_The_way_out_of_the_tower_of_Babel_accuracy_231e1e005e.jpg 146w," sizes="100vw" width="754" height="807"></p><ul><li>Closeness between measurement results (relating to the concept of precision)</li><li>Closeness of the average of the measurement results to a reference value (relating to the concept of trueness)&nbsp;</li><li>Closeness of an individual measurement result to the true value (relating to the concept of accuracy)&nbsp;</li></ul><p>The different situations in the figure show the effect of:&nbsp;</p><ol style="list-style-type:lower-latin;"><li>poor precision and trueness (imprecise and biased)&nbsp;</li><li>good precision, poor trueness (precise but biased)&nbsp;</li><li>poor precision, good trueness (imprecise but unbiased)&nbsp;</li><li>good precision and trueness (precise and unbiased)&nbsp;</li></ol><p>Improving both precision and trueness is expected to improve accuracy.&nbsp;</p><h4><strong>Is all this relevant to you?&nbsp;</strong></h4><p>Do you work in a laboratory, either as an analyst, quality manager or director? Are you involved in other activities related to analytical work, such as providing proficiency tests, producing reference materials or accrediting any such activity? Do you teach or study subjects related to measurements? Do you use measurement results or prescribe how to use them? <i><strong>If the answer is yes to any of these questions, the following reference documents are also for you</strong></i>.</p>

You talk, we understand – The way out of the tower of Babel

<p><strong>Visit the LabRulez booth at </strong><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/events/871"><strong>analytica 2026</strong></a><strong> in Munich, 24. - 27. March 2026! You can find us in Hall A1, Booth A1.506. At the booth, you will be able to explore live demonstrations of how the LabRulez portals work and see selected analytical instruments from our pre-owned marketplace section.</strong></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Lab_Rulez_at_Analytica_2026_Floor_plan_55e1057e03.jpg" alt="LabRulez at Analytica 2026: Hall A1 Floor Plan and Booth Location" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Lab_Rulez_at_Analytica_2026_Floor_plan_55e1057e03.jpg 245w," sizes="100vw" width="1516" height="881"></p><h3><strong>Would you like to learn how the LabRulez portals work?</strong></h3><p>➡︎ <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/"><strong>LabRulezLCMS</strong></a><br>➡︎ <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/"><strong>LabRulezGCMS</strong></a><br>➡︎ <a target="_blank" rel="noopener noreferrer" href="https://icpms.labrulez.com/"><strong>LabRulezICPMS</strong></a></p><ul><li>A <strong>unique online solution</strong> for <strong>your marketing</strong></li><li>A <strong>targeted audience</strong> from the <strong>analytical chemistry community</strong></li><li><strong>Modern technologies</strong> and a unique concept</li><li><strong>Design optimized for most smart devices</strong> – PC, mobile, and tablet</li><li><strong>Advanced statistical tools</strong> fully available to users</li></ul><h3><strong>Services Offered</strong></h3><h4><strong>News + Company Updates</strong></h4><ul><li>Publish <strong>news related to your instrumentation, applications, services, events, job openings</strong>, and more</li><li><strong>News is shared</strong> both on our <strong>portals</strong> and across our <strong>social media channels</strong></li></ul><h4><strong>Library – All Documents in One Place</strong></h4><ul><li><strong>Applications, posters, presentations, technical articles, brochures, specifications</strong></li><li><strong>Fas</strong>t and <strong>advanced search</strong> capabilities</li><li>Over <strong>32,000 documents</strong> currently available in our database</li></ul><h4><strong>Webinars</strong></h4><ul><li><strong>Upcoming and on-demand webinars</strong> from the field of analytical chemistry</li><li>More than <strong>5,500 webinars</strong> covering chromatography, mass spectrometry, and spectroscopy</li></ul><h4><strong>Careers</strong></h4><ul><li><strong>Targeted job</strong> listings in <strong>analytical chemistry</strong></li><li>Clear filtering by specialization or location</li><li><strong>Increased visibility for job postings</strong></li></ul><h4><strong>Companies</strong></h4><ul><li><strong>Company profile</strong> with key information and contacts</li><li><strong>Integration of all your activities on our portal:</strong> News, Library documents, Webinars, Upcoming Events, Careers, and mentions by partners or customers</li><li><strong>Connection to your Products </strong>listed on LabRulez portals</li></ul><h4><strong>Products and Services</strong></h4><ul><li>Comprehensive <strong>overview of instrumental techniques and services</strong></li><li>Targeting the analytical chemistry community and customers in the growing online environment</li></ul><h4><strong>Marketplace</strong></h4><ul><li><strong>Buying and selling pre-owned analytical equipment</strong></li><li>We purchase analytical instrumentation of all brands and ages</li><li><strong>Sell your equipment through LabRulez</strong></li><li>Request and purchase <strong>complete systems, modules</strong>, or <strong>spare parts</strong> with warranty and service</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Lab_Rulez_at_analytica_2026_bazar_7edf4a0872.jpg" alt="LabRulez at analytica 2026" srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Lab_Rulez_at_analytica_2026_bazar_7edf4a0872.jpg 88w," sizes="100vw" width="1600" height="2844"></p><h3><strong>What Will Be on Display at Our Booth?</strong></h3><p>Come and explore selected spare parts and modules from our marketplace section. These include both new, tested, and pre-owned items.</p><h4><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/bazaar"><strong>LabRulezLCMS Marketplace</strong></a></h4><p><strong>Spare parts for LC/MS:</strong></p><ul><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/bazaar?category=378"><strong>Vacuum turbo pumps for LC/MS</strong></a></li></ul><p><strong>Spare parts for HPLC:</strong></p><ul><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/bazaar?category=397"><strong>Degassers for HPLC/UHPLC</strong></a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/bazaar?category=368&amp;search=valve"><strong>Automatic valves for HPLC</strong></a></li><li>HPLC components for Agilent 1100, 1200, and 1260 Infinity II series</li></ul><p><strong>Consumables:</strong></p><ul><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/bazaar?category=377"><strong>HPLC lamps</strong></a></li><li><a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/bazaar?category=48"><strong>HPLC columns</strong></a></li></ul><h4><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/bazaar"><strong>LabRulezGCMS Marketplace</strong></a></h4><p><strong>Spare parts for GC/MS:</strong></p><ul><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/bazaar?category=367&amp;search=turbo"><strong>Turbo pumps for GC/MS</strong></a></li></ul><p><strong>Spare parts for GC:</strong></p><ul><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/bazaar?category=366&amp;search=EPC"><strong>EPC modules</strong></a></li></ul><p><strong>Sample injection</strong></p><ul><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/bazaar/432"><strong>Autosampler 7693A for GC</strong></a></li></ul><p><strong>Consumables:</strong></p><ul><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/bazaar?category=7"><strong>GC columns </strong></a>and selected accessories</li></ul>

LabRulez at analytica 2026

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Eurachem is a European network promoting international traceability of chemical measurements and good analytical practice. It provides expert guidance, supports method validation, uncertainty evaluation, proficiency testing, and facilitates discussion on technical and policy issues in analytical quality.

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VUV Analytics VGA-100 Gas Chromatography Detector for TRACE 1600 Series GC

The VGA-100 GC detector with VUV technology and TRACE 1600 GC delivers rapid, accurate analysis of isomers and complex mixtures with higher productivity and reliability.

<p><strong>The Thermo Scientific™ VGA-100™ Gas Chromatography Detector (developed by VUV Analytics, Inc.) introduces the next generation of GC detection through revolutionary vacuum ultraviolet (VUV) absorption technology. Delivering unmatched sensitivity, selectivity, and precision, the VGA-100 provides both qualitative and quantitative data with exceptional accuracy.</strong></p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_VGA_100_Gas_Chromatography_Detector_2_e45d1cf5c3.jpg" alt="Thermo Scientific VGA-100 Gas Chromatography Detector." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_VGA_100_Gas_Chromatography_Detector_2_e45d1cf5c3.jpg 165w," sizes="100vw" width="752" height="710"></p><h3><strong>Key Benefits</strong></h3><ul><li><strong>Seamless integration with TRACE 1600 Series GC</strong> – Together, the VGA-100 and<a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/483"><strong> TRACE™ 1600 GC </strong></a>form a powerful, scalable, and intuitive system designed to meet the most demanding laboratory workflows.</li><li><strong>Enhanced productivity and speed</strong> – Faster analysis, higher throughput, and reduced operational costs thanks to automated spectral deconvolution and streamlined data processing.</li><li><strong>Superior selectivity and clarity</strong> – Compound-specific absorption spectra enable confident identification of isomers and co-eluting compounds without baseline separation.</li><li><strong>Universal and mass-sensitive detection</strong> – Provides comprehensive 3D data (time, wavelength, intensity) with library matching for reliable compound identification across a broad range of analytes.</li><li><strong>Ease of use</strong> – No vacuum pumps required, minimal maintenance, intuitive operation, and full compatibility with both R&amp;D and QC environments.</li><li><strong>VUV Analyze™ Software integration</strong> – Push-button workflows, automated Time Internal Deconvolution™ (TID), and ready-to-use spectral libraries deliver fast, reliable, and reproducible results.</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_VGA_100_Gas_Chromatography_Detector_5_e387eb9360.jpg" alt="Thermo Scientific VGA-100 Gas Chromatography Detector: VUV spectra of hydrocarbons exhibit class-based similarities, simplifying complex fuel mixture analysis." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_VGA_100_Gas_Chromatography_Detector_5_e387eb9360.jpg 245w," sizes="100vw" width="1170" height="552"></p><h3><strong>Applications</strong></h3><p>The VGA-100 detector addresses critical analytical challenges such as accurate isomer identification, analyte co-elution, long run times, and complex data interpretation. It is especially impactful in:</p><ul><li><strong>Petrochemical analysis</strong> – Simplifies PIONA (paraffins, isoparaffins, olefins, naphthenes, aromatics) characterization in finished fuels, enabling rapid, automated fuel analysis.</li><li><strong>Environmental, food, and pharmaceutical testing</strong> – Reliable quantification of complex mixtures with improved accuracy and reduced calibration complexity.</li><li><strong>Quality control and research labs</strong> – Scalable, intuitive platform supporting compliance, throughput, and robust data integrity.</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_VGA_100_Gas_Chromatography_Detector_3_ddcbe84bde.jpg" alt="Thermo Scientific VGA-100 Gas Chromatography Detector: Simplified PIONA compound analysis in finished gasoline." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_VGA_100_Gas_Chromatography_Detector_3_ddcbe84bde.jpg 245w," sizes="100vw" width="956" height="426"></p><h3><strong>Summary</strong></h3><p>The <strong>VGA-100 GC Detector</strong> sets a new benchmark in gas chromatography by combining VUV absorption technology with the robust performance of the TRACE 1600 Series GC. Laboratories gain a powerful “ready-to-use” solution that enhances throughput, accuracy, and confidence across diverse industries.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_VGA_100_Gas_Chromatography_Detector_4_5595ee9da1.jpg" alt="Thermo Scientific VGA-100 Gas Chromatography Detector." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_VGA_100_Gas_Chromatography_Detector_4_5595ee9da1.jpg 139w," sizes="100vw" width="816" height="918"></p>

VUV Analytics VUV Detector for TRACE 1600 Series GC

Thermo Scientific VGA-100 and LUMA VUV detectors for TRACE 1600 GC deliver accurate hydrocarbon speciation, impurity detection, and trace-level analysis with speed and reliability.

<div><div><div><div><div><h4><strong>Precision, clarity, and confidence from VUV spectroscopy in GC</strong></h4></div></div><div><div><p>VUV detectors paired with the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/products/483"><strong>Thermo Scientific TRACE 1600 Series GC </strong></a>conquer the challenge of complex mixtures, co-eluting compounds, and isomer differentiation&nbsp;for accurate hydrocarbon speciation, impurity detection, and trace-level detection.</p><p>Gas Chromatography (GC) is evolving, and VUV (Vacuum Ultraviolet) technology is at the forefront of this transformation. Now available on the TRACE 1600 Series GC, VUV spectroscopy, through VUV <strong>Analytics VGA-100 </strong>detector and the<strong> LUMA detector</strong>, provides accuracy in hydrocarbon speciation, impurity detection, and trace-level analysis.</p><h5><strong>Greater accuracy, automation, and confidence in your GC analysis</strong></h5><p>Traditional GC detectors struggle with complex mixtures, co-eluting compounds, and isomer differentiation. VUV spectroscopy overcomes these limitations by using absorption-based detection, capturing unique molecular fingerprints for each compound.</p><div><h3><strong>How VUV technology works</strong></h3></div><div><div><div><div><div><p>VUV detection provides qualitative and quantitative spectral information for most gas phase compounds.&nbsp;</p></div></div></div></div><div><div><div><div><div><p><strong>Broad-spectrum absorption:&nbsp;</strong>VUV detectors measure how molecules absorb light in the vacuum ultraviolet range (120–240 nm), revealing unique spectral signatures.</p><p><strong>Automated compound ID:&nbsp;</strong>To reduce errors and improve analysis speed, VUV software automatically deconvolutes overlapping peaks. unlike traditional GC detectors.</p><p><strong>Quantitative and qualitative insights:&nbsp;</strong>VUV enables compound identification and quantification in a single run by analyzing complete spectral data.</p></div></div></div></div></div><div><div><div><div><h4><strong>Principle of operations</strong></h4><div><div><div><div><ol><li><b style="font-size:1.0pc;"><strong>Sample injection in the GC: </strong></b>A sample is injected into the GC system and separated into its components as it travels through the GC column.</li><li><strong>Elution from the analytical column:&nbsp;</strong>The separated components elute from the GC column and enter the VUV detector.</li><li><strong>VUV light source:&nbsp;</strong>A deuterium lamp as VUV light source emits light in the vacuum ultraviolet range (typically 120-200 nm).</li><li><strong>Flow cell:&nbsp;</strong>The eluted components pass through a flow cell where they are exposed to the VUV light.</li><li><strong>Analytes absorption of VUV light:&nbsp;</strong>As components pass through the flow cell, they absorb VUV light at specific wavelengths. Each compound has a unique absorption spectrum in the VUV range.</li><li><strong>Analytes detection:&nbsp;</strong>Photodiode array detector measures the intensity of the transmitted VUV light. The decrease in light intensity corresponds to the absorption by the analytes.</li><li><strong>Data processing:&nbsp;</strong>Detector sends the signal to a data processing system, which converts the absorption data into a chromatogram.</li></ol><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_VUV_Detector_for_TRACE_1600_Series_GC_e3f5a229d6.jpg" alt="Thermo Scientific  VUV Detector for TRACE 1600 Series GC." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_VUV_Detector_for_TRACE_1600_Series_GC_e3f5a229d6.jpg 245w," sizes="100vw" width="2048" height="1128"></p><div><div><div><h3><strong>VUV for petrochemical and refining</strong></h3><ul><li><strong>PIONA analysis: </strong>Accurately classify paraffins, isomers, olefins, naphthenes, and aromatics with automated deconvolution for fast, confident hydrocarbon speciation and group type analysis in complex fuels.</li><li><strong>Fuel quality control (ASTM D8071):</strong> Ensure compliant, efficient fuel characterization using VUV’s spectral fingerprints, delivering fast, automated analysis for gasoline and other fuel blends.</li><li><strong>Sulfur &amp; nitrogen speciation:</strong> Detect and speciate sulfur and nitrogen compounds at trace levels in fuels, ensuring regulatory compliance and protecting product quality.</li></ul></div></div></div><div><div><div><h3><strong>VUV for pharmaceutical and chemicals</strong></h3><ul><li><strong>Residual solvent analysis: </strong>Faster, more sensitive detection of residual solvents, ensuring compliance with USP &lt;467&gt; and reducing reanalysis with precise, automated detection.</li><li><strong>Impurity profiling in APIs: </strong>VUV absorbance provides greater selectivity and lower detection limits than traditional GC detectors, ensuring reliable impurity profiling in even the most complex APIs.</li><li><strong>Trace-level contamination detection: </strong>Identify unknown contaminants at low levels in pharmaceuticals, chemicals, and environmental samples with enhanced selectivity and sensitivity.</li></ul></div><div><div><div><div><div><h4><strong>Benefits of upgrading to GC-VUV</strong></h4><div><div><div><div><div><p><strong>Hydrocarbon speciation</strong></p><ul><li>Distinguish paraffins, olefins, naphthenes, and aromatics (PONA) effortlessly</li><li>Eliminate misidentification errors common with FID and MS</li><li>Automate peak integration and classification</li></ul><div><div><div><div><div><p><strong>Trace impurity detection</strong></p><ul><li>Detect sulfur, nitrogen, and oxygen compounds at trace levels</li><li>Ensure compliance with regulatory standards in fuels and pharmaceuticals</li><li>Identify unknown contaminants in a single run</li></ul><div><div><div><div><div><p><strong>Analysis and workload</strong></p><ul><li>Decrease complex calibration standards requirement</li><li>Automated spectral deconvolution = less manual processing</li><li>Improved lab efficiency and throughput</li></ul><div><h3><strong>Which detector is right for you?</strong></h3><p>VGA-100 and LUMA detectors integrate seamlessly with the TRACE 1600 Series GC, offering plug-and-play installation, intuitive software, and superior analytical performance.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Thermo_Scientific_VUV_Detector_for_TRACE_1600_Series_GC_2_f6a599c167.jpg" alt="Thermo Scientific  VUV Detector for TRACE 1600 Series GC." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Thermo_Scientific_VUV_Detector_for_TRACE_1600_Series_GC_2_f6a599c167.jpg 245w," sizes="100vw" width="777" height="258"></p><blockquote><ul><li><strong>VGA-100 detector</strong></li><li><strong>LUMA detector</strong></li></ul></blockquote></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>

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