<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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EST Analytical CENTURION Water/Soil Purge and Trap Autosampler

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

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

EST Analytical EVOLUTION 2 Purge and Trap Concentrator

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

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

EST Analytical AS120 Autosampler

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

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

EST Analytical FLEX 2 Robotic Sampling Platform

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

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

EST Analytical LGX-50 for Methane in Water

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

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

Products from EST Analytical - page 1

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