<p><strong>This study presents a one-year assessment of microplastic concentrations in the River Rhine, analyzing samples from three locations and across multiple size fractions using TED-GC/MS. Dominant polymers included polyethylene, polypropylene, polystyrene, styrene–butadiene rubber, and natural rubber.</strong></p><p>Statistical analysis revealed size-dependent distributions, minor seasonal variation, and spatial differences, highlighting the role of sources such as tire abrasion. The findings provide valuable data for environmental monitoring, ecotoxicological research, and regulatory frameworks related to water quality.</p><blockquote><h4><strong>The original article</strong></h4><h4><a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acsestwater.5c00530"><strong>One Year Observation of Microplastic Concentrations in the River Rhine</strong></a></h4><p>Yosri Wiesner, Paul Eisentraut, and Korinna Altmann*</p><p>ACS EST Water 2026, 6, 2, 639–648</p><p><a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1021/acsestwater.5c00530">https://doi.org/10.1021/acsestwater.5c00530</a></p><h6>licensed under <a target="_blank" rel="noopener noreferrer" href="https://creativecommons.org/licenses/by/4.0/"><strong>CC-BY 4.0</strong></a></h6></blockquote><p><strong>Selected sections from the article follow. Formats and hyperlinks were adapted from the original.</strong></p><div><p>As microplastics (MPs) are found all over the world and no comprehensive knowledge is available yet, extensive monitoring campaigns are required to gain a full understanding of their occurrence, transportation and fate. <a href="javascript:void(0);">(1,2)</a> In particular, MP abundance in freshwater systems has still not been sufficiently investigated. <a href="javascript:void(0);">(3,4)</a> Additionally, the question of the toxicological potential of MPs has been the subject of numerous studies for many years, <a href="javascript:void(0);">(5,6)</a> leading to more precise and complex experimental set-ups and results. However, there is still a need for more acurate data on environmental MP concentrations in order to make ecotoxicological tests even more detailed and realistic. The lack of certainty for exposure concentrations in the risk assessment frame of MPs leads to the precautionary principle being applied by politicians and regulators worldwide. Both the EU drinking water directive and the wastewater directive call for monitoring of MPs within the next few years. It is important to establish suitable analytical methods for sampling, sample preparation and detection that must now be fast, robust and fit for purpose in order to obtain representative and valid results depending on mass or particle number. <a href="javascript:void(0);">(7−9)</a></p><p>MPs are solid particles with a size of 1–1000 μm mainly consisting of polymers (ISO/TR 21960, 2020) and can, for example, result from industrial production in the form of small particles that are designed as additives and change the properties of products, or from plastic parts that have been released into the environment. Major sources of MPs today are paints, tires, packaging materials, pellet waste and textiles. <a href="javascript:void(0);">(10−12)</a> These macroplastic products can form MP particles as a result of degradation factors such as photooxidation, hydrolysis and mechanical abrasion. <a href="javascript:void(0);">(13,14)</a></p><p>The River Rhine has its origin in Switzerland and then flows through Liechtenstein, Austria, Germany and France until it discharges into the North Sea in The Netherlands. At 1233 km and a catchment area of about 185&nbsp;000 km<sup>2</sup>, the Rhine is one of the largest river systems in Europe and, due to its expanse, forms the ecological basis for a large number of animal species. Around 30 million people in Germany are supplied with drinking water from the Rhine.</p><p>It is hardly possible to assess the occurrence of MPs if either a limited sampling volume is used or only individual samples are taken. It is therefore essential that different volumes are sampled depending on whether the water to be sampled contains many or few MP particles. It is recommended to sample at least 5 m<sup>3</sup> for drinking water samples and 1 m<sup>3</sup> for surface water, whereas raw wastewater contains so many particles that only a few liters need to be sampled. <a href="javascript:void(0);">(15)</a> Although sampling of these water volumes leads to a representative sample from the analytic point of view, it is questionable, if the result measured is representative for the location. Previous studies have shown that the composition in terms of MP masses in a water body can change at one location with each individual sample independently whether several samples are analyzed in 1 day or spread over several days. <a href="javascript:void(0);">(16)</a> Fractionated filtration and sedimentation boxes as active and passive sampling methods have proven themselves in the sampling of freshwater systems. In active sampling, water is fractionally filtered using a pump and a sieve tower with different mesh sizes. <a href="javascript:void(0);">(17)</a> Passive sampling can be carried out using sedimentation boxes. <a href="javascript:void(0);">(18)</a> In a sedimentation box, the flow velocity of the medium flowing through is reduced by using several baffle plates. Due to the reduced velocity and energy, particles up to a certain size are forced to sediment by the now predominant gravitational force. Such boxes can remain in the water for several weeks and therefore collect a cross-section of the suspended particles including MP over a certain period of time.</p><p>Mass and number-based methods have emerged as suitable detection methods for MPs. <a href="javascript:void(0);">(19)</a> Number-based methods such as μ-Raman, μ-FTIR or LDIR are well advanced to evaluate the polymer identity, particle number concentration and shape, <a href="javascript:void(0);">(20,21)</a> but are still time-consuming in terms of sample preparation. In regulatory approaches or for simulations, usually the MP mass is needed. MP polymer identity and masses can be detected by thermoanalytical methods like pyrolysis-GC/MS (Py-GC/MS) or thermal extraction desorption-GC/MS (TED-GC/MS). Especially TED-GC/MS seems to be suitable for monitoring purses of suspended particulate matter, because there is no need for additional sample preparation others than filtration and homogenization. Up to 50 mg of suspended particulate matter can be directly measured in one run, giving representative subsamples for precise measurements exceeding the limit of quantification. Furthermore, styrene–butadiene rubber (SBR) and natural rubber (NR) as indication for tire wear can be detected in the same sample run next to thermoplastics such as polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), polystyrene (PS), polyamide 6 or polyacrylates.</p><p>This work provides a comprehensive data set of MP concentrations of the River Rhine over one year sampling at three different locations starting near the source in Weil via Koblenz and Emmerich. Sampling was done with sedimentation boxes with monthly withdrawal and fractioned filtration of the collected particles afterward. The size fractions 10–50 μm, 50–100 μm and 100–500 μm were provided by the Federal Institute of Hydrology (BfG, Germany) and analyzed at the Federal Institute of Material Research and Testing (BAM, Germany) funded by a national project from the Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection (BMUV, Germany, 3719 22301 0). Detection was performed with TED-GC/MS in routine mode, proven as a fast and robust detection method. <a href="javascript:void(0);">(2,16,22)</a> Data can be used, for example, for water monitoring or as reference values for future risk assessment scenarios and experiments.</p><h4><strong>2. Materials and Methods</strong></h4><h5><strong>2.2. TED-GC/MS</strong></h5><p>TED-GC/MS is a multistage detection technique combining the thermal sample extraction by thermogravimetric analysis (TGA) with chromatographic separation of the individual decomposition gases and detection by trace analysis with gas chromatography/mass spectrometry (GC/MS). Sample material in 150 μL alumina crucibles was pyrolyzed in a <strong>TGA2 thermobalance</strong> (MettlerToledo, Gieβen, Germany) under a nitrogen flow of 30 mL/min from 200 to 500 °C with a heating rate of 10 K/min. Typical sample intake was between 10 to 50 mg depending on the organic content. The decomposition gases were collected on a solid phase (SorbStar, Envea, Vohenstrauβ, Germany) in the typical polymer decomposition temperature range between 200 and 500 °C via a heated coupling module (240 °C, Gerstel, Mülheim an der Ruhr, Germany). The loaded solid phase was transported to the thermodesorption unit (TDU)-GC/MS by an autosampler (<a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?manufacturerItems=8&amp;search=MultiPurposeSampler+2"><strong>MultiPurposeSampler 2</strong></a> (MPS2), Gerstel, Mühlheim an der Ruhr). The desorption of the decomposition products took place in the TDU (50–200 °C, 5 min isothermal, He gas, Gerstel), the cryofocusing in the cold injection system (−100 °C, Gerstel). Injection was carried out from there by rapid heating (−100–270 °C, 12 K/s) onto the separation column (HP5 ms, 1 mL/min He, 40–300 °C, Agilent, Palo Alto, USA) in the <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?manufacturerItems=1&amp;search=7890B"><strong>GC system (7890 B Agilent)</strong></a>. After chromatographic separation, detection was performed in a mass spectrometer (EI, 70 eV, scan-mode, <a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/library?manufacturerItems=1&amp;search=5977B"><strong>5977 B, Agilen</strong></a>t).</p><h4><strong>3. Results and Discussion</strong></h4><p>A summary of the identified polymer types and their corresponding mass concentrations per sampling location is provided in <a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acsestwater.5c00530#fig1">Figure 1</a>. All individual results are presented in <a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acsestwater.5c00530/suppl_file/ew5c00530_si_001.pdf">Table S1</a> of the Supporting Information. With a few exceptions, the polymers PE, PP, PS, SBR and NR were detected. To cope with the large amount of measurement data and to obtain an overview of possible correlations, the data was evaluated using statistical and mathematical algorithms. Only the five polymers named above provide enough input data and are therefore used as the basis for the data analysis. The individual results were sorted according to various aspects that are included in the data set as independent variables:</p><p>(I)&nbsp;&nbsp;&nbsp; Particle size fractions</p><p>(II)&nbsp;&nbsp;&nbsp; Temporal variation</p><p>(III)&nbsp;&nbsp;&nbsp; Spatial variation due to the sampling locations</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/ACS_EST_Water_2026_6_2_639_648_Figure_1_Overview_of_sampling_locations_along_the_German_part_of_the_River_Rhine_and_sum_of_identified_median_mass_concentrations_fe570f51b5.jpg" alt="ACS EST Water 2026, 6, 2, 639–648: Figure 1. Overview of sampling locations along the German part of the River Rhine and sum of identified median mass concentrations." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_ACS_EST_Water_2026_6_2_639_648_Figure_1_Overview_of_sampling_locations_along_the_German_part_of_the_River_Rhine_and_sum_of_identified_median_mass_concentrations_fe570f51b5.jpg 158w," sizes="100vw" width="1883" height="1860"></p><p>The concentrations of the various polymers in the suspended matter serve as input values. The riverine balancing and material transport based on the total masses (polymer mass in total suspended solids mass) is carried out explicitly and will be published at Umweltbundesamt as part of the project report by the BfG (Ternes, final project report, 2023).</p><h5><strong>3.1. Particle Size Fractions</strong></h5><p>This section describes the possible correlation of the polymer mass concentration with the size of the measured particles regardless of the sampling location. Therefore, the generated samples were sorted by sieving into different size fractions of 10–50, 50–100 and 100–500 μm. The relative mean values of the individual fractions are calculated (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acsestwater.5c00530/suppl_file/ew5c00530_si_001.pdf">Figure S2</a>) to obtain the shares of the different polymer types in the total amount of MP. PE is the dominant polymer in all size fractions with 68–76%, followed by PS (10–15%), SBR (4–13%), PP (2–5%) and NR (2–4%). Obviously, all polymer types are approximately evenly distributed across the size fractions, with SBR being less present in the 100–500 μm fraction.</p><p>In general, it can be determined that PE accounts for the highest proportion of MP. PS makes up the second highest proportion, followed by SBR. Next in line are PP and NR. The polymer findings are in good agreement with previous MP studies of the Rhine. PE, PP and PS in particular are the most frequently detected polymers. <a href="javascript:void(0);">(3)</a> The relative abundance of PE, PP and PS is also relatively similar to Skalska et al., even when the particle number was considered here. <a href="javascript:void(0);">(26)</a> Especially in comparison with the results of Mani et al. significant similarities to the ratios of PE, PP and PS can be found. Data on SBR from tire abrasion in the Rhine is difficult to find in existing studies, as such particles cannot easily be identified using vibrational methods due to the IR absorbing properties and the intense fluorescence of the accompanying soot. However, a comparison with suspended particulate matter samples from the Danube is possible, as here the detection was also carried out using TED-GC/MS. <a href="javascript:void(0);">(2)</a> The relative ratios of PE, PP, PS, SBR and NR are comparable and support the plausibility of the results.</p><p>Total MP mass concentrations are presented in <a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/suppl/10.1021/acsestwater.5c00530/suppl_file/ew5c00530_si_001.pdf">Figure S3</a> for individual polymer types, showing highest mass concentrations in the size fraction 100–500 μm. The median varies from 0.17 to 6.80 μg/mg depending on the polymer type. In absolute terms, the PE mass concentrations are significantly higher than those of all other polymers. PP and PS show a strong mass increase in the 100–500 μm fraction, together with higher uncertainty compared to 10–50 μm and 50–100 μm. With a variation of 0.27–0.32 μg/mg across all particle size fractions, the mass contents of SBR are relatively constant, while NR mass concentration seems to increase more linearly. The high mass concentrations and the strong scattering of the 100–500 μm fractions could be due to the presence or absence of large but few particles. Basically, the larger a particle is, the higher its contribution to the mass concentration. In contrast, the larger a particle is, the lower the probability of an equal distribution in all samples.</p><p>If other regions associated with the Rhine are considered, comparable ratios of mass concentration in the various particle size fractions are found in Rhine floodplains. <a href="javascript:void(0);">(27)</a></p><p>At the beginning of the data analysis, a Principal Component Analysis (PCA) is carried out to identify parameters that have a high influence on the mass content. This analysis identified that the particle size has the greatest influence on the mass concentration (<a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acsestwater.5c00530#fig2">Figure 2</a>). The first principal component (PC 1) was identified as the particle size fraction and explains over 50% of the differences in the data.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/ACS_EST_Water_2026_6_2_639_648_Figure_2_PCA_Score_plot_of_mass_concentrations_of_the_different_polymers_be94ae16c4.jpg" alt="ACS EST Water 2026, 6, 2, 639–648: Figure 2. PCA Score plot of mass concentrations of the different polymers." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_ACS_EST_Water_2026_6_2_639_648_Figure_2_PCA_Score_plot_of_mass_concentrations_of_the_different_polymers_be94ae16c4.jpg 184w," sizes="100vw" width="747" height="635"></p><h4><strong>4. Conclusion</strong></h4><p>This study demonstrated that long-term sampling of the Rhine is possible and provides plausible results, which is important for future MP monitoring campaigns, as required by the Urban Waste Water Treatment Directive for the EU. Although the MP concentrations in the Rhine are relatively constant, seasonal and downstream differences were observed. In order to confirm these possible trends, further sampling campaigns are needed to identify possible differences on an annual scale. Furthermore, the influences of urban proximity and land use must be examined in greater detail by increasing the number of measuring points. Additional sample sites are needed to identify possible sources of input. This would be particularly important to clarify the PS concentrations, which show a high correlation between the different particle size fractions in almost all seasons and could indicate a possible common source. SBR is the only polymer to show a relatively constant concentration across all particle sizes and seasons, independent of the river course. Since it is a tire component, constant road traffic could be part of the explanation. However, a different particle ratio must be assumed here compared to the other polymers. The fragmentation mechanism and/or another transport mechanism needs to be clarified.</p><p>Although PE constitutes the majority of the total MP concentration, there may be an overestimation due to false positive signals. To exclude or confirm this, further studies must be conducted to analyze the organic components of the riverine suspended matter in detail.</p><p>A comparison with other studies reveals similar occurrences of the same polymer types and in parts also similar seasonal fluctuations and a slight downstream increase. The differentiated presentation of results in polymer type, particle size fraction and range of mass concentrations can provide a valuable basis for more complex and realistic exposure tests for ecotoxicological studies on freshwater organisms. In particular, the large database for SBR as a tire component could be of special interest, as the toxicity of tire particles due to their chemical composition has already been shown in other studies. In studies using FTIR-based detection methods, these values are usually missing due to the high absorbance of the black tire particles.</p></div>

One Year Observation of Microplastic Concentrations in the River Rhine

<p><strong>In the week of April 6, the following webinars await you in the field of gas / solid phase and especially Raman, FTIR, GC and GC/MS.</strong></p><blockquote><h4><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/webinars"><strong>👉 DETAILS AND REGISTRATION IN THE WEBINARS SECTION</strong></a></h4><p><strong>👉 Search and filter in the largest global database</strong> with over <strong>5 500 GC, LC, MS and spectroscopy webinars</strong>.</p></blockquote><div><div><div><div><div><div><h5><strong>1. Bruker: Advances in AFM for the Characterization of 2D Materials</strong></h5><ul><li>We, 8.4.2026 17:00 CET</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/webinar/6054">Registration</a></li></ul><p>Explore how AFM enables comprehensive nanoscale characterization of 2D materials. Learn about structural, electrical, and chemical mapping, AFM-IR, and nanomanipulation for device fabrication.</p><h5><strong>2. Agilent Technologies: Mastering Gas Sampling: Valve Fundamentals to ASTM Ready RGA &amp; TOGA Analysis</strong></h5><ul><li>Th, 9.4.2026 08:00 CEST</li><li><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/webinar/6056">Registration</a></li></ul><p>In this session, learn how to achieve reliable permanent gas analysis, starting from proper valve selection and sampling fundamentals.</p></div></div></div></div></div></div>

Webinars LabRulezGCMS Week 15/2026

<h4><strong>Introduction&nbsp;</strong></h4><p><strong>Millions of tests, measurements and examinations are made every day in thousands of laboratories around the world. There are innumerable reasons underpinning them, for example: as a way of valuing goods for trade purposes; supporting healthcare and construction; checking the quality and safety of food and feed; and in forensic analysis and environmental monitoring. Virtually every aspect of society is supported in some way by analytical work.&nbsp;</strong></p><p>The cost of carrying out these measurements is high and additional costs may arise from decisions made on the basis of the results. For example, tests showing food to be unfit for consumption may result in compensation claims. In addition, tests confirming the presence of banned drugs could result in fines or imprisonment. Clearly it is important to make a correct measurement and be able to show that the result is correct.</p><h4><strong>The validation/verification process</strong></h4><p>Most analysts know that method validation/verification is important, but exactly why, how and when it should be done is not always clear.&nbsp;</p><p>Method validation/verification is the process whereby the laboratory demonstrates whether or not a method is ‘fit for purpose’ (Fig. 1). This means that the tests carried out should be appropriate with respect to uncertainty, cost, time etc. The final report should present analytical data in such a way that the customer can, readily, interpret it and draw appropriate conclusions.</p><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Eurachem_The_validation_verification_82742c1029.jpg" alt="Eurachem: Fig. 1. The method validation/verification process. The laboratory ‘translates’ the customer’s problem into an analytical requirement, i.e. the method performance required to solve the problem. Method validation/verification includes a stage where various performance characteristics are evaluated and then compared with analytical requirements." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Eurachem_The_validation_verification_82742c1029.jpg 124w," sizes="100vw" width="821" height="1029"></p><h4><strong>The Eurachem Guide&nbsp;</strong></h4><p>A <a target="_blank" rel="noopener noreferrer" href="https://lcms.labrulez.com/products/2242"><strong>Guide from Eurachem</strong></a> (Fig. 2) gives practical advice on how method validation/verification can be accomplished. The Guide and its supplements [1-4]:&nbsp;</p><ul><li>Introduce the basic concepts related to method validation and method verification;&nbsp;</li><li>Indicate how to plan, record and report validation and verification studies to best support the statement of ‘fitness for purpose’;&nbsp;</li><li>Provide key definitions and the rationale behind the experiments for assessing the various performance characteristics and related topics (Fig. 3);&nbsp;</li><li>Include quick reference tables that suggest experiments together with the necessary statistical calculations for evaluation and reporting each performance characteristic;&nbsp;</li><li>Provide support to the analyst on how to make the best use of method validation data for setting up an internal quality control plan.</li></ul><p><img src="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/Eurachem_The_Fitness_for_Purpose_of_Analytical_Methods_95fc1a74e3.jpg" alt="Eurachem: Fig. 2. The Eurachem Guide is available free of charge at www.eurachem.org." srcset="https://storage.googleapis.com/labrulez-bucket-strapi-h3hsga3/thumbnail_Eurachem_The_Fitness_for_Purpose_of_Analytical_Methods_95fc1a74e3.jpg 135w," sizes="100vw" width="1062" height="1231"></p><h4><strong>How should methods be validated/verified?</strong></h4><p>The guide focuses on a single-laboratory approach to method validation/verification and gives guidance on planning, carrying out and reporting method validation and verification studies. Any method validation or verification study will require the laboratory to investigate several performance characteristics:</p><ul><li>Precision<ul><li>Repeatability&nbsp;</li><li>Intermediate precision</li></ul></li><li>Trueness</li><li>Selectivity</li><li>Working range</li><li>Analytical sensitivity</li><li>Limit of detection</li><li>Limit of quantification</li><li>Ruggedness</li></ul><p>Exactly which characteristics are studied will depend on the analytical application. Verification of the performance of a standard method requires substantially less work than validation of a method developed in-house. Legislative/sectoral requirements must also be considered.&nbsp;</p><p>Sampling and subsampling can be part of the measurement or testing procedure and must, in those cases, be validated.</p>

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<p><strong>There are many column choices for GC and GC/MS, but which one is right for your method? Choosing the correct column type is paramount in being successful with your analysis. Understanding the stationary phase chemistry and the role it plays in column selectivity, as well as the dimensions of the capillary column itself, will result in a more robust and efficient analysis. This talk will discuss how the various stationary phases influence selectivity, as well as how column dimensions affect peak behavior and resolution. Join us as we match YOU with the right column for your analysis!</strong></p><blockquote><p><strong>Presenter: </strong>Ryan Birney (Application Engineer, Agilent Technologies, Inc.)</p><p>In Ryan’s current role at Agilent, he provides application assistance and technical support for GC and Spectroscopy. He has been supporting Agilent in technical and sales roles for the past seven years. Ryan came to Agilent from industry, and has an BS degree in Biochemistry.</p></blockquote>

Agilent Technologies: Becoming a Better Chromatographer - Educational Webinar Series

Column Confidence: Making the Right Choice for Your GC Needs

Discover how stationary phases and column dimensions impact GC/GC-MS selectivity and resolution to choose the best column for your method.

Column Choice for Your GC Needs

<h4><strong>Food Safety Webinar Series: When Food Meets the Lab</strong></h4><p><strong>Food testing in the region still revolves around “legacy” contaminants that decide release, rejection, and recall discussions - veterinary drug residues, pesticide residues and fumigants, and toxic elements including species-sensitive forms, in different food matrices. This 3-part series is built for audiences where regulatory expectations reference Codex-based frameworks, country-specific legislative guidelines, and import/export-market requirements that influence testing scope, reporting limits, and confirmation criteria. Each webinar focuses on the analytical factors that drive outcomes: matrix effects and co-extractives, trace-level quantitation, transition/ion-ratio checks, interference control, and reportable result logic.</strong></p><p>Keynote expert speakers will set the regulatory context, give a glimpse of the current trends, and future implications. Agilent workflow segments map these needs to sample preparation nuances, LC-MS/MS for multi-class residues, GC-MS/MS and headspace GC for residue/fumigant markers, and ICP-MS plus LC-ICP-MS for heavy metals and speciation, including QC structures and data review patterns used in high-throughput labs, to name a few.</p><h5><strong>Webinar Series Details</strong></h5><ul><li>Register once to attend the complete 3-part series</li><li>Submit your questions beforehand</li><li>Access recorded sessions anytime within one year</li><li>Certificate of attendance will be provided to all attendees</li></ul><h4><strong>Part 2: Pesticide Residues &amp; Fumigants Edition</strong></h4><p>Pesticide residue testing is shaped by Codex/EU-aligned expectations that frequently drive import decisions, while fumigant markers remain high-scrutiny topics for ingredients and finished foods, especially in spice, grain, seed, and produce supply chains. This webinar connects the regulatory context to method choices and result interpretation: broad-scope multi-residue coverage versus matrix complexity, QuEChERS-based extraction and cleanup, split-platform workflows (LC-MS/MS and GC-MS/MS). For fumigants, the focus includes sample handling for volatility, targeted measurement approaches for ethylene oxide/2-CE and phosphine-related testing where relevant, and reporting pitfalls that trigger disputes.&nbsp;</p><blockquote><p><strong>Presenter: </strong>Dr. Vandana Tripathy (Principal Scientist &amp; Network Coordinator, AINP on Pesticide Residues, ICAR-IARI; FSSAI Scientific Panel on Pesticide Residues, India)</p><p><strong>Presenter:&nbsp;</strong>Dr. Yu-Feng Zhang (Application Engineer, Agilent Technologies, Singapore)</p></blockquote>

Agilent Technologies: Food Safety Webinar Series: When Food Meets the Lab

Pesticide Residues & Fumigants Edition

Webinar on pesticide residues and fumigants: LC-MS/MS, GC-MS/MS, QuEChERS workflows and Codex/EU-aligned regulatory reporting.

<p><strong>Conventional analysis of polymers requires several different technologies to determine parameters such as density, intrinsic viscosity, hydroxyl value, additive content, and more. These approaches are not only time-consuming but also require significant effort from qualified personnel, both in final quality control and monitoring criticial stages during the production process.</strong></p><p>In our upcoming webinar on April 16, we present NIR spectroscopy (NIRS) as a faster and easier alternative. This chemical-free technlogy provides results at the push of a button enabling the determination of multiple chemical and physical parameters with just one measurement within seconds.</p><p>After a brief introduction to the fundamentals of NIRS, our experts will demonstrate how polymer manufacturers and processors can use this technology to simplify quality control, reduce waste, and use automation to improve overall efficiency. In a Q&amp;A session at the end of the webinar, our presenters will be happy to answer any questions you may have about NIRS and how to implement it in your manufacturing process.</p><h4><strong>Key learnings of this webinar:</strong></h4><ul><li>Understand what NIRS is and how it works</li><li>Understand how NIRS compares with traditional wet chemistry</li><li>Understand how NIRS is applied as per ASTM guidelines</li><li>Application examples for NIRS from the polymer sector</li></ul><h4><strong>Who should attend?</strong></h4><p>Lab managers, lab technicians, chemists, and everybody else interested in making their quality control of polymers more efficient.</p><blockquote><p><strong>Presenter: </strong>Andreas Agerer (Application Specialist NIRS, Metrohm International Headquarters)</p><p>Andreas Agerer is an Application Specialist at Metrohm AG, working in the Competence Center Spectroscopy since 2018. In this time, he has been responsible for developing NIRS methods tailored to new application areas and supporting sales teams during feasibility studies. Andreas completed his university graduate work in the field of polymer analysis using vibrational spectroscopy.</p><p><strong>Presenter:&nbsp;</strong>Dr. Maria Cartes (Product Specialist Spectroscopy, Metrohm International Headquarters)</p><p>Dr. Maria Cartes studied chemistry. After finishing her PhD studies on ethylene polymerization at the University of Seville (Spain), she moved to Switzerland to work as a postdoc. In 2021, Maria joined Metrohm, where she works as Product Specialist in the Competence Center Spectroscopy, providing international support and product training for NIRS.</p></blockquote>

Metrohm: Measure smarter, spend less – NIR spectroscopy for polymer analysis

Measure smarter, spend less – NIR spectroscopy for polymer analysis

NIR spectroscopy for polymer quality control. Explore fast multi-parameter analysis and automation benefits for manufacturing efficiency.

NIR spectroscopy for polymer analysis

<h4><strong>Talk to an expert about how Gas Chromatography supports Industrial laboratories through innovative Hardware and Software workflows</strong></h4><p>Join our expert panel of Gas Chromatography users and specialists for an interactive Round Table dedicated to the evolving role of GC in industrial laboratories. We will explore the essential hardware and software requirements for robust, compliant, and scalable GC workflows, discuss real-world challenges and solutions, and look ahead to the innovations shaping the future of industrial GC. This session offers a rare opportunity to learn directly from experienced practitioners and Thermo Fisher experts.</p><p>Ask our experts live!</p><h4><strong>Learning points:</strong></h4><ul><li>How GC supports critical industrial workflows, including quality control, process monitoring, product development, and regulatory compliance.</li><li>Best-practice hardware and software configurations to ensure reliability, data integrity, automation, and ease of integration in industrial environments.</li></ul><h4><strong>Who should attend?</strong></h4><ul><li>Laboratory managers, supervisors, and analysts working in industrial QC, R&amp;D, or process labs.</li><li>GC users seeking guidance on optimizing instrument performance, data systems, and workflow integration.</li><li>Anyone interested to future-proof their GC analytical capabilities.</li></ul><p><i>If you cannot attend this webinar please register to receive a link to the On Demand version the following day.&nbsp;</i></p><blockquote><p><strong>Presenter: </strong>Daniela Cavagnino (Product Marketing Manager GC, Thermo Fisher Scientific)</p><p><strong>Presenter:&nbsp;</strong>Petra Gerhards (Regional Marketing Manager, EMEA, AAT, Thermo Fisher Scientific)</p></blockquote>

Thermo Fisher Scientific: Ask the Expert: Maximizing GC Performance in Industrial Applications

Ask the Expert: Maximizing GC Performance in Industrial Applications

Learn best-practice hardware and software strategies for reliable, compliant, and scalable gas chromatography operations.

Maximizing GC Performance in Industrial Applications

<p><strong>FTIR spectroscopy is a powerful analytical technique that connects molecular vibrations to practical chemical measurements. In this webinar, we review the fundamentals of FTIR spectroscopy, including how infrared absorption arises from molecular structure, why IR spectra provide unique chemical fingerprints, and how quantitative information can be extracted using Beer–Lambert–based calibration with carefully selected spectral bands. These core concepts form the foundation for applying FTIR reliably to complex chemical systems, including aqueous samples, using the Agilent Cary 630 FTIR spectrometer.&nbsp;</strong></p><p>The webinar then transitions to the practical challenge of measuring oil and grease in water—an important requirement for wastewater, process water, and environmental monitoring. ClearShot™ Extraction Technology, developed by OSS Maine, provides a cost-effective, safe, and accurate approach for quantifying total oil and grease without the use of hazardous solvents. When paired with FTIR analysis, this workflow enables rapid measurements across a wide concentration range, supporting efficient, reliable water analysis.</p><blockquote><p><strong>Presenter:&nbsp;</strong> Yanqia Wang, PhD (Application Engineer, Molecular Spectroscopy, Agilent Technologies, Inc.)</p><p>Dr. Yanqia Wang started working for Agilent Technologies Inc. as a FTIR application Engineer in 2013, providing pre-&amp;post-sale application support. The products he covers from Bench-top FTIR microscopes to various Mobile FTIR spectrometers. Dr. Wang received his PhD of analytical chemistry from Duke University in 2004, doing dynamic IR spectroscopy research. Then he joined Fitzpatrick Center for Photonics at Duke University, doing Tissue Raman spectrometer instrumentation. Since 2007, Dr. Wang worked for Avery Dennison Corp. as a spectroscopist, providing molecular analytical support to the research &amp; development.</p></blockquote>

Agilent Technologies: Molecular spectroscopy webinars

FTIR in Action: From Spectroscopy Fundamentals to Oil and Grease Analysis in Water

Webinar on FTIR fundamentals and oil & grease analysis in water using ClearShot™ extraction and Agilent Cary 630 for rapid, reliable environmental testing.

FTIR Fundamentals & Oil and Grease Analysis in Water

<h4><strong>Comprehensive nanoscale characterization of 2D materials using AFM</strong></h4><p>Characterizing 2D materials involves examining a wide range of nanoscale structures properties, and chemistry. Atomic force microscopy (AFM) is extremely versatile, making it ideal for addressing these complexities. With AFM, researchers can investigate various aspects of 2D materials (often simultaneously), gaining detailed insights that are essential for advanced applications.</p><h5><strong>Join us for this webinar to learn about:</strong></h5><ul><li>Single-platform correlation of structure, properties, and chemistry</li><li>Commonly used AFM modes for 2D materials characterization</li><li>Manipulation modes for in-situ device fabrication by cutting, folding, or oxidation</li></ul><p>AFM plays a pivotal role in the nanoscale characterization of 2D materials by providing high-resolution topographical, mechanical, and electrical property mapping at the nanoscale, down to the atomic level. Identifying and characterizing single layers and multilayers is routine, while crystal orientation can often be determined with the proper choice of mode and probe. Since the AFM probe can act as a nanoscale electrode, it is possible to directly measure electrical properties of these materials at the relevant length scales between 1 and 100 nm. Photothermal AFM-IR (AFM-IR) adds localized chemical identification with nanometer scale spatial mapping by integrating infrared spectroscopy with AFM. Together, these capabilities correlate structure and chemistry, enabling comprehensive studies of complex 2D material systems. The AFM probe can also be used for nanomanipulation and nanolithography, allowing device fabrication by cutting, folding, or oxidation.</p><h5><strong>In this webinar, we discuss:</strong></h5><ul><li>Commonly used AFM modes for identification and characterization of 2D materials</li><li>Recent advancements in consistency of high-resolution 2D material mapping</li><li>Characterization of nanoelectrical properties in 2D materials through conductivity, impedance, and surface potential measurements</li><li>Nanoscale chemical identification through AFM-IR spectroscopy and mapping</li><li>Nanolithography on 2D materials, for example by tip-induced local anodic oxidation</li></ul>

Bruker: Advances in AFM for the Characterization of 2D Materials

Advances in AFM for the Characterization of 2D Materials

AFM for 2D materials characterization. Discover nanoscale mapping, AFM-IR chemical analysis, electrical measurements, and nanolithography applications.

<p><strong>Join us for this dual‑session SelectScience® webinar exploring hydrogen impurity testing and analytical strategies for achieving ISO 14687‑aligned fuel quality. To better suit your schedule and time zone, the webinar will be offered in two separate sessions:</strong></p><ul><li><strong>Session 1:</strong> 09:00 BST | 10:00 CEST</li><li><strong>Session 2: </strong>10:00 PDT | 13:00 EDT | 18:00 BST</li></ul><p>As hydrogen scales across energy, transport, and industrial applications, understanding fuel purity is fundamental for compliance, safety, and uptime. At present, only a limited number of instruments are capable of addressing the full hydrogen impurity matrix, meaning that most testing strategies continue to rely on a combination of analytical technologies aligned to the specific production pathway.</p><p>In this webinar, Tyler Roberts, Market Manager of Applied Markets at Shimadzu, presents a practical, process‑aware framework for hydrogen impurity testing. He will outline how different analytical technologies contribute to a complete workflow, including:</p><ul><li><strong>System GC</strong> for permanent gases, hydrocarbons, and sulfur compounds</li><li><strong>GC‑MS</strong> for organic impurity identification and speciation</li><li><strong>Ion chromatography</strong> for ammonia and halogenated acids at the lowest required detection limits</li><li><strong>FTIR</strong> for rapid multi‑component screening from a single sample</li></ul><p>Covering pathways from steam methane reforming (SMR) and electrolysis to ammonia cracking and liquid organic hydrogen carrier (LOHC) systems, this session will guide you in building the analytical foundation for confident hydrogen quality assurance benchmarked against ISO 14687.</p><h4><strong>Who should attend?</strong></h4><p>This event is perfect for:</p><ul><li>Analytical chemists</li><li>QC lab scientists</li><li>Hydrogen production process engineers</li><li>Fuel cell researchers</li><li>Fuel cell test engineers</li><li>Catalyst researchers</li><li>Lab managers</li><li>Lab procurement specialists</li></ul><h5><strong>Certificate of attendance</strong></h5><ul><li>If you attend the live webinar, you will automatically receive a certificate of attendance, including a learning outcomes summary, for continuing education purposes.</li><li><i>If you view the on-demand webinar, you can request a certificate of attendance by emailing editor@selectscience.net.</i></li></ul><h4><strong>Webinar details</strong></h4><ul><li><strong>Cost: </strong>Free to attend</li><li><strong>Location: </strong>Online</li><li><strong>Duration:</strong> 60 minutes</li></ul><p><i>Registration is required to secure your place. If you register but can’t attend live, you will receive a link to the on‑demand recording once it becomes available</i></p><blockquote><p><strong>Speaker: </strong>Tyler Roberts (Market Manager, Applied Markets, Shimadzu Scientific Instruments)</p><p>Tyler Roberts holds a Master’s in Analytical Chemistry from the University of Arizona and has built a reputation for bridging deep technical expertise with market-driven innovation. Tyler is now the Market Manager for Applied Markets at Shimadzu Scientific Instruments, where he leads technical marketing strategy across the energy, chemicals, and materials sectors and is a vocal advocate for advancing analytical science in high-impact industries.</p><p><strong>Moderator:</strong> Olivia Long (Editorial Team, SelectScience)</p></blockquote>

Shimadzu: What’s in your hydrogen? Analytical toolkits for fuel purity analysis

What’s in your hydrogen? Analytical toolkits for fuel purity analysis

Hydrogen impurity testing and ISO 14687 compliance. Discover GC, GC-MS, IC, and FTIR strategies for reliable fuel quality assurance.

Analytical toolkits for fuel purity analysis

<p><strong>Experience how Agilent’s Gas Analyzers and Micro GC platforms deliver dependable, high‑efficiency gas analysis across the chemical and energy value chain.</strong></p><p>This three‑part webinar series offers market perspectives, expert technical guidance, and practical workflows designed to help laboratories enhance operational agility and performance.</p><h5><strong>Webinar Series Details</strong></h5><ul><li>Register once to attend the complete 3-part series</li><li>Submit your questions beforehand</li><li>Access recorded sessions anytime within one year</li><li>Certificate of attendance will be provided to all attendees</li><li><strong>APAC-wide: </strong>11:30 a.m. IST | 1:00 p.m. ICT | 2:00 p.m. SGT | 5:00 p.m. AEST</li></ul><h4><strong>Part 1: Mastering Gas Sampling: Valve Fundamentals to ASTM Ready RGA &amp; TOGA Analysis</strong></h4><p><strong>In this session, learn how to achieve reliable permanent gas analysis, starting from proper valve selection and sampling fundamentals. This session covers analytical strategies for RGA, NGA, and TOGA using Agilent GC systems helping your lab improve accuracy, consistency, and ASTM‑aligned performance.</strong></p><blockquote><p><strong>Presenter: </strong>Mr. Praveen Arya (Application Engineer, Agilent Technologies)</p><p><strong>Presenter: </strong>Dr. Manoj Surwade (Product Specialist, Agilent Technologies)</p></blockquote>

Agilent Technologies: Agilent Gas Analyzers in the Chemical & Energy Market

Mastering Gas Sampling: Valve Fundamentals to ASTM Ready RGA & TOGA Analysis

In this session, learn how to achieve reliable permanent gas analysis, starting from proper valve selection and sampling fundamentals.

Mastering Gas Sampling: Valve Fundamentals & TOGA Analysis

<p><strong>Experience how Agilent’s Gas Analyzers and Micro GC platforms deliver dependable, high‑efficiency gas analysis across the chemical and energy value chain.</strong></p><p>This three‑part webinar series offers market perspectives, expert technical guidance, and practical workflows designed to help laboratories enhance operational agility and performance.</p><h5><strong>Webinar Series Details</strong></h5><ul><li>Register once to attend the complete 3-part series</li><li>Submit your questions beforehand</li><li>Access recorded sessions anytime within one year</li><li>Certificate of attendance will be provided to all attendees</li><li><strong>APAC-wide: </strong>11:30 a.m. IST | 1:00 p.m. ICT | 2:00 p.m. SGT | 5:00 p.m. AEST</li></ul><h4><strong>Part 2: Agilent Solutions for Natural Gas Analysis in Coal-to-Gas Acceleration</strong></h4><p><strong>The transition from coal to natural gas is accelerating as industries prioritize cleaner and more efficient energy sources. Ensuring natural gas quality requires precise, reliable analytical methods to characterize composition, contaminants, and energy content. This session covers the holistic landscape, followed by an in-depth look at how the Agilent workflow is specialized and flexible to support operational agility. Ideal for labs seeking actionable market insights and high-performance analytical solutions.</strong></p><blockquote><p><strong>Presenter: </strong>Ms. Phoebe Phan (Business Development Manager, Agilent Technologies)</p><p><strong>Presenter:&nbsp;</strong>Dr. Jie Zhang (Application Development Scientist, Agilent Technologies)</p></blockquote>

Agilent Solutions for Natural Gas Analysis in Coal-to-Gas Acceleration

This session covers the holistic landscape, followed by an in-depth look at how the Agilent workflow is specialized and flexible to support operational agility.

Agilent Solutions for Natural Gas Analysis 

<p><strong>Join this presentation and open discussion with industry-leading experts Patrick Muller and Kieran Evans – leaders in UV/Vis and IR analytical methods and testing techniques. This talk is designed for scientists in optics development and the high-end research of optical properties who work in academia, solar, space, defense and other high-performance applications.</strong></p><h4><strong>Key Learning Objectives:</strong></h4><ul><li>Understand key measurement requirements for optical components and thin films, using both the UV/Vis/NIR and FTIR instrumentation.</li><li>Better understand material properties for real-life applications in industry, defense and the environment.</li><li>Learn about the importance of sampling flexibility in UV/Vis/NIR analysis.</li><li>See how specialist infrared equipment such as Optica can further advance your research insights including in-transmission measurements.</li></ul><h4><strong>Who Should Attend:</strong></h4><p>Scientists investigating optical properties who work in academia, solar, space, defense and other high-performance applications:</p><ul><li>Laboratory manager</li><li>Material Scientist</li><li>Research/Researcher</li><li>Optics Scientists</li><li>Principal Investigators</li><li>Lead Researcher</li></ul><blockquote><p><strong>Speaker:</strong> Kieran Evans (Product Manager – UV, PerkinElmer UK)</p><p><strong>Speaker:</strong> Dr. Patrick Müller (Product Specialist FT-IR/FT-NIR, PerkinElmer)</p><p><strong>Speaker:</strong> Sara Kobilka (Contributing Editor, C&amp;EN Media Group)</p></blockquote>

C&EN: Precision Lab Solutions for High-End Optics and Coatings

Precision Lab Solutions for High-End Optics and Coatings

Join this presentation and open discussion with industry-leading experts in UV/Vis and IR analytical methods and testing techniques.

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