🎤Jessica WhitehouseHaloacetic acids (HAAs) are disinfection byproducts formed when chlorine or bromine reacts with organic matter in water—and some are linked to serious health concerns. In this episode of Concentrating on Chromatography, we sit down with Jessica Whitehouse, MSc student at the University of Calgary, to discuss how she developed a GC-MS method to detect and quantify HAAs in real-world water samples.During her undergraduate research at Thompson Rivers University, Jessica tackled a major challenge faced by many academic labs: how to analyze regulated environmental contaminants without access to GC-ECD instrumentation. &nbsp;Using dispersive liquid–liquid microextraction, derivatization, and GC-MS, she built a faster, more accessible workflow—and applied it to tap water, swimming pools, and hot tubs.<h4>In this conversation, we cover:</h4><ul><li>What haloacetic acids are and why they matter</li><li>Why standard EPA methods can be difficult for smaller or teaching-focused labs</li><li>How GC-MS can be adapted for HAA analysis</li><li>The challenges of derivatization and temperature program optimization</li><li>Unexpected findings in brominated vs. chlorinated HAAs</li><li>Why pool and hot tub water can show surprisingly high HAA levels</li><li>The excitement (and frustration) of first-time method development</li><li>Advice for undergraduate and early-career analytical chemists</li></ul>Jessica also shares how this project led directly to her current MSc research on ozone and nanobubble water disinfection, where she’s now expanding into ion chromatography.Whether you work in environmental analysis, chromatography, GC-MS, or are just starting your journey in analytical chemistry, this episode offers practical insight into real lab constraints, method development, and the joy of finding your first analyte peak.<h3>Video Transcription</h3><h4>Introduction</h4>Haloacetic acids (HAAs) are an important class of disinfectant byproducts formed when organic matter present in water reacts with chemical sanitizers. Because several HAAs are associated with adverse health effects, their determination remains relevant in environmental and public health analysis. This interview highlights the academic pathway and research experience of Jessica, whose undergraduate work focused on the development of a gas chromatography–mass spectrometry (GC-MS) method for the analysis of HAAs in pool and hot tub water.Her project emerged from a combination of academic interest in analytical chemistry, practical experience with water testing, and the constraints of instrument availability in an undergraduate research setting. The resulting workflow illustrates how method adaptation, critical problem-solving, and persistence can enable meaningful analytical research even when standardized methods are not directly accessible.<h4>Academic Background and Entry into Analytical Chemistry</h4>Jessica completed a Bachelor of Science in Chemistry with a minor in Physics at Thompson Rivers University in British Columbia. Her interest in analytical chemistry developed during her second year of study, when coursework revealed the quantitative and detail-oriented nature of the discipline. This emphasis on numerical interpretation, precision, and method development aligned strongly with her academic strengths and motivated her to pursue analytical research.Her specific interest in water chemistry originated even earlier through practical work in a pool and hot tub store, where she became familiar with routine water testing and the chemical factors influencing water quality. This early exposure led naturally into undergraduate research under the supervision of Dr. Sharon Brewer, whose expertise in water analysis provided an ideal foundation for the project.<h4>Haloacetic Acids as Disinfectant Byproducts</h4>Haloacetic acids are a subset of disinfectant byproducts generated when sanitizing agents react with natural organic matter in water. In treated recreational water systems such as pools and hot tubs, disinfectants are essential for microbial control, yet they can also lead to formation of unwanted chemical byproducts. Because some HAAs are considered potentially harmful, their occurrence and concentration warrant analytical attention.In this study, both chlorinated and brominated HAAs were of interest. Although the tested water systems were primarily sanitized using chlorine-based products, the occurrence of brominated HAAs emerged as a notable and somewhat unexpected finding.<h4>Analytical Challenges and Method Selection</h4>A major challenge in the project was the lack of access to the instrumentation required for the standard EPA-based method initially considered for HAA analysis. The available protocol depended on GC-ECD instrumentation, which was not accessible at the university. This limitation required the development of an alternative strategy based on the instruments available locally.GC-MS was selected as the most practical analytical platform. To support this approach, Jessica identified a literature source describing a similar method that could be adapted to her research aims. In parallel, dispersive liquid–liquid microextraction was introduced into the workflow as a means of sample preparation, providing valuable methodological experience beyond the standard undergraduate laboratory curriculum.This adaptation illustrates a common reality in academic research: analytical methodology is often shaped not only by ideal regulatory procedures, but also by local instrument access, scheduling limitations, and the practical needs of the researcher.<h4>Need for Derivatization in GC-MS Analysis</h4>A central analytical issue was that HAAs are inherently nonvolatile, which makes them poorly suited to direct GC analysis. To enable gas chromatographic separation, derivatization was required to convert the analytes into more volatile derivatives with more favorable boiling characteristics.In this method, derivatization with octanol was employed. This modification improved volatility and also generated larger fragments, which aided mass spectral interpretation by making the analyte fragmentation patterns easier to distinguish. Thus, derivatization served both chromatographic and mass spectrometric purposes.<h4>Optimization of the GC Temperature Program</h4>Considerable effort was devoted to optimization of the GC temperature program. The main difficulty did not arise solely from the analytes themselves, but from the derivatization reagent. Octanol produced a broad and persistent chromatographic feature, including a significant shoulder extending into later retention times. This complicated separation and increased pressure to keep the method sufficiently short for routine sample throughput.Among the analytes, monochloroacetic acid proved especially problematic. Because it differed only subtly in structure and produced overlapping behavior relative to the octanol-derived background, its signal was difficult to isolate confidently. Although chlorine-containing fragments could be observed, precise assignment remained challenging. This difficulty underscores how small structural differences and matrix-related interferences can complicate quantitative GC-MS workflows.<h4>Method Performance and Practical Advantages</h4>Although the adapted GC-MS method was developed out of necessity, it also provided practical advantages over the more standardized workflow that had initially been considered. In particular, the derivatization step in the adapted approach required only approximately 10 minutes, whereas the more conventional procedure involved a water bath step lasting around two hours. In addition, the adapted workflow offered shorter overall preparation and analysis timing, allowing batches of samples to be prepared and placed on the autosampler within a normal working schedule.From a practical research perspective, this translated into substantially improved laboratory efficiency. The ability to complete derivatization quickly and begin automated sample analysis without extensive delays made the workflow more manageable and better suited to the demands of an undergraduate project.<h4>Unexpected Findings: Brominated HAAs in Chlorine-Sanitized Systems</h4>One of the more surprising outcomes of the study was the predominance of brominated HAAs, despite the fact that the investigated pools and hot tubs were sanitized using chlorine-based treatments. Four of the systems relied on sodium chloride electrolysis to generate chlorine species, while others used chlorine-containing puck formulations commonly applied in recreational water treatment.Given these conditions, higher levels of chlorinated HAAs might have been expected. Instead, the results suggested a greater abundance of brominated HAAs. A plausible explanation is the presence of bromine-containing impurities in commercial pool and hot tub chemicals. Although such impurities may occur at relatively low levels, they can still influence disinfectant byproduct formation. The observation highlights the importance of considering the full chemical composition of treatment products, not merely their primary declared active ingredients.<h4>Value of Practical Industry Experience</h4>Jessica’s prior work in the pool and hot tub industry provided an unusually strong contextual advantage for the project. Because the samples originated from store clients, she had access to detailed information about the chemicals used in each system, including safety data sheets and knowledge of treatment timing. This background significantly strengthened interpretation of the analytical results by linking measured byproducts to known product usage patterns.Such integration of practical field knowledge with laboratory analysis represents an important strength in applied environmental chemistry, particularly when studying real-world water systems rather than idealized laboratory samples.<h4>Scientific Development and Early Research Motivation</h4>An especially valuable element of the project was the role it played in building research confidence. Jessica described the first successful identification of an analyte peak as a memorable turning point, reflecting the emotional significance of early experimental success in scientific training. In analytical chemistry, where method optimization often involves repeated setbacks and ambiguous data, such moments can be critical in sustaining motivation and reinforcing scientific identity.This experience also informed her advice to early-stage researchers: unfavorable or unexpected outcomes still constitute valid results. Negative or imperfect findings remain analytically meaningful and contribute to scientific understanding, provided they are interpreted carefully.<h4>Connection to Current Research</h4>Jessica is now working at the University of Calgary on a different project focused on ozone and nanobubble disinfection. Although the analytical platform and immediate research questions have changed, the conceptual connection to her earlier work remains clear. Her experience with disinfectant byproducts and water chemistry directly supported her transition into this new role and helped position her as a strong candidate for research in water treatment-related systems.She also expressed interest in expanding her analytical expertise through ion chromatography, which will play a role in her current work. This transition reflects the broader development of an environmental analytical chemist whose work continues to center on water quality, disinfection chemistry, and the analytical tools needed to investigate both.<h4>Public Health Relevance</h4>A notable practical implication of the project concerns recreational water safety. Jessica emphasized that pool and hot tub water should not be ingested, a recommendation already widely understood in general terms but further reinforced by her findings. In at least one case, HAA concentrations were reported at levels far above the federal drinking water regulation threshold. While such regulations are designed for potable water rather than recreational water, the comparison nevertheless illustrates the extent to which disinfectant byproducts may accumulate in these environments.She also noted that several HAAs are classified as probable human carcinogens, with prolonged exposure linked to serious health concerns. Although occasional accidental ingestion is not equivalent to chronic exposure, the findings reinforce the importance of appropriate hygiene, safe water maintenance practices, and awareness of chemical byproduct formation in recreational systems.<h4>Conclusion</h4>This research demonstrates how meaningful analytical chemistry can emerge from a combination of scientific curiosity, practical constraints, and strong mentorship. By adapting a GC-MS workflow for the determination of haloacetic acids in pool and hot tub water, Jessica developed a method that was both workable within local instrument limitations and efficient enough to offer practical benefits over more conventional procedures.Beyond the analytical results themselves, the project highlights several broader themes: the value of undergraduate research, the importance of flexibility in method development, the benefit of practical contextual knowledge, and the relevance of environmental analytical chemistry to real-world public health questions. It also shows how early research experiences can shape a long-term scientific trajectory, leading from undergraduate investigation to continued work in water chemistry and disinfection science.<blockquote>This text has been automatically transcribed from a video presentation using AI technology. It may contain inaccuracies and is not guaranteed to be 100% correct.</blockquote><blockquote><h4>Concentrating on Chromatography Podcast</h4>Dive into the frontiers of chromatography, mass spectrometry, and sample preparation with host David Oliva. Each episode features candid conversations with leading researchers, industry innovators, and passionate scientists who are shaping the future of analytical chemistry. From decoding PFAS detection challenges to exploring the latest in AI-assisted liquid chromatography, this show uncovers practical workflows, sustainability breakthroughs, and the real-world impact of separation science. Whether you’re a chromatographer, lab professional, or researcher you'll discover inspiring content!You can find Concentrating on Chromatography Podcast in podcast apps:<ul><li><a target="_blank" rel="noopener noreferrer" href="https://open.spotify.com/show/1wZg67rCjoGju4yhqxI3tL">Spotify</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podcasts.apple.com/tz/podcast/concentrating-on-chromatography/id1788429185">Apple podcast</a></li><li><a target="_blank" rel="noopener noreferrer" href="https://podscan.fm/podcasts/concentrating-on-chromatography">podscan</a></li></ul>and on <a target="_blank" rel="noopener noreferrer" href="https://www.youtube.com/@ChromatographyTalk/videos">YouTube channel</a></blockquote>

Detecting Haloacetic Acids in Water with GC-MS

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.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.<blockquote><h4>The original article</h4><h4><a target="_blank" rel="noopener noreferrer" href="https://pubs.acs.org/doi/10.1021/acsestwater.5c00530">One Year Observation of Microplastic Concentrations in the River Rhine</a></h4>Yosri Wiesner, Paul Eisentraut, and Korinna Altmann*ACS EST Water 2026, 6, 2, 639–648<a target="_blank" rel="noopener noreferrer" href="https://doi.org/10.1021/acsestwater.5c00530">https://doi.org/10.1021/acsestwater.5c00530</a><h6>licensed under <a target="_blank" rel="noopener noreferrer" href="https://creativecommons.org/licenses/by/4.0/">CC-BY 4.0</a></h6></blockquote>Selected sections from the article follow. Formats and hyperlinks were adapted from the original.<div>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>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>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 km2, 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.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 m3 for drinking water samples and 1 m3 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.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.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.<h4>2. Materials and Methods</h4><h5>2.2. TED-GC/MS</h5>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 TGA2 thermobalance (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">MultiPurposeSampler 2</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">GC system (7890 B Agilent)</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">5977 B, Agilen</a>t).<h4>3. Results and Discussion</h4>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:(I)&nbsp;&nbsp;&nbsp; Particle size fractions(II)&nbsp;&nbsp;&nbsp; Temporal variation(III)&nbsp;&nbsp;&nbsp; Spatial variation due to the sampling locations<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">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).<h5>3.1. Particle Size Fractions</h5>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.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.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.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>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.<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"><h4>4. Conclusion</h4>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.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.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.</div>

One Year Observation of Microplastic Concentrations in the River Rhine

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.<blockquote><h4><a target="_blank" rel="noopener noreferrer" href="https://gcms.labrulez.com/webinars">👉 DETAILS AND REGISTRATION IN THE WEBINARS SECTION</a></h4>👉 Search and filter in the largest global database with over 5 500 GC, LC, MS and spectroscopy webinars.</blockquote><div><div><div><div><div><div><h5>1. Bruker: Advances in AFM for the Characterization of 2D Materials</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>Explore how AFM enables comprehensive nanoscale characterization of 2D materials. Learn about structural, electrical, and chemical mapping, AFM-IR, and nanomanipulation for device fabrication.<h5>2. Agilent Technologies: Mastering Gas Sampling: Valve Fundamentals to ASTM Ready RGA &amp; TOGA Analysis</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>In this session, learn how to achieve reliable permanent gas analysis, starting from proper valve selection and sampling fundamentals.</div></div></div></div></div></div>

Webinars LabRulezGCMS Week 15/2026

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To move into the digital age, you need software that can help you manage the growing amount of data generated by the modern lab. The right tools help turn that data into actionable insights and keep your lab operating efficiently. Today’s laboratory software solutions need to easily migrate data and methods from aging platforms and simplify data analysis and reporting tasks.
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Presenter: Kathleen O&#39;Dea (Application Engineer, Agilent Technologies, Inc.)
</blockquote>
<blockquote>
Kathleen O’Dea has a 20 year history with Agilent’s OpenLab products. As an Informatics Application Engineer, Kathleen has visited customers around the world in a wide variety of market areas, helping them to select and implement OpenLab software products.
</blockquote>

Agilent Technologies: Modernize Your Lab With Intelligent Software

Modernize Your Lab With Intelligent Software

To move into the digital age, you need software that can help you manage the growing amount of data generated by the modern lab.

Agilent cordially invites you for first ever series of A Virtual OpenLabMasterclass -“Know Your OpenLabCDS”
Our objective of this master class series is to get you through entire CDS workflow from basic step to complete data archivals. From this series of 9 sessions, you would get the most out of your OpenLabCDS.
<h5>You will be able to:</h5>
<ul>
<li>Refresh step by step guide on entire software operation workflows.</li>
<li>See live demonstration &amp; use of some of the unique features of OpenLabCDS.</li>
<li>Address queries of your software operations &amp; some tips to make the best use of OpenLab.</li>
</ul>
<h3>OpenLab CDS UV Spectral &amp; Peak Purity - How to Perform 3D data analysis for compound &amp; UV purity confirmation</h3>
Peak Impurity check (or) Peak Purity is a 3D-UV Feature that allows users to verify if the peaks can be considered as pure or impure (coeluting peaks). In this session, we will talk about 3D data analysis features available in OpenLab CDS like, Extraction of chromatogram, Extraction of Spectra for a time point, Isoabsorbance plot, understanding peak purity results like Match factor, UV Purity Factor to interpret the UV Peak purity results.

Agilent Technologies: Know Your OpenLab - A Master Class Series in OpenLab CDS

OpenLab CDS UV Spectral & Peak Purity - How to Perform 3D data analysis for compound & UV purity confirmation 

In this session, we will talk about 3D data analysis features available in OpenLab CDS.

OpenLab CDS UV Spectral & Peak Purity

Agilent cordially invites you for first ever series of A Virtual OpenLabMasterclass -“Know Your OpenLabCDS”
Our objective of this master class series is to get you through entire CDS workflow from basic step to complete data archivals. From this series of 9 sessions, you would get the most out of your OpenLabCDS.
<h5>You will be able to:</h5>
<ul>
<li>Refresh step by step guide on entire software operation workflows.</li>
<li>See live demonstration &amp; use of some of the unique features of OpenLabCDS.</li>
<li>Address queries of your software operations &amp; some tips to make the best use of OpenLab.</li>
</ul>
<h3>OpenLab CDS Audit trail Review &amp; E-signatures - How to review Audit trails contemporaneously &amp; electronically</h3>
Audit trail review is mandatory as per regulatory requirements. Traditionally, audit trail review is followed with Hybrid approach like taking print out and manual signatures. In this session we will talk about how OpenLab CDS allows you to review audit trails electronically. We will also talk about E-signature &amp; Data Lock / Un-Lock workflows available in OpenLab CDS for ensuring data integrity &amp; security.

OpenLab CDS Audit trail Review & E-signatures - How to review Audit trails contemporaneously & electronically

In this session we will talk about how OpenLab CDS allows you to review audit trails electronically.

OpenLab CDS Audit trail Review & E-signatures

With the food industry subject to increasing scrutiny, comprehensive testing solutions are required to determine the authenticity and contaminant-free status of food products and to ensure their compliance with safety regulations.
In this SelectScience® roundtable webinar series, we bring together leading experts in the fields of pesticides analysis, mycotoxin testing and food contact materials characterization to discuss the latest trends in these areas and laboratory innovations set to transform the future of food safety testing. This series consists of three panel discussions, starting on Wednesday, March 23rd.
<h4>Webinar 1: Modernizing pesticides testing</h4>
Wednesday, March 23, at 16:00 GMT / 17:00 CET / 12:00 EDT / 09:00 PDT
<h4>Webinar 2: Measuring migration from food contact materials</h4>
Thursday, April 7th, at 16:00 BST / 17:00 CEST / 11:00 EDT / 08:00 PDT
<h4>Webinar 3: Identifying and controlling mycotoxins in livestock and food products</h4>
Tuesday, April 12th at 16:00 BST / 17:00 CEST / 11:00 EDT / 08:00 PDT
<blockquote>
Presenter: Susanne Ekroth (Chemist, National Food Agency EU)
</blockquote>
<blockquote>
Susanne Ekroth is an analytical chemist at the Swedish National Food Agency. She graduated from Uppsala University and has been working at the Swedish National Food Agency for 27 years as a pesticide expert. During this time, she has developed skills in advanced technology, including GC-MS/MS, LC-MS/MS and LC-HRMS and is one of the founders of the multi residue method SweEt. Besides pesticides, she also works with food contact materials and toxins in water. 
</blockquote>
<blockquote>
In recent years, Susanne has focused on HRMS techniques and the possibility to replace the LC-triple quadrupoles with LC-MS Orbitrap and simultaneously screen for new and unwanted compounds in food matrices. This work is presented as an application note and webinar as well as in Food Safety Magazine.
</blockquote>
<blockquote>
Susanne is a member of the Scientific Organizing Committee for EPRW (European Pesticide Residue Workshop) and IUPAC (Pesticide Congress, Food Quality and Safety). She has given presentations about her work on the SweEt multiresidue method on several occasions, for example at the Nordic-, European- and Latin American Pesticide Residue Workshop, RAFA and Fresenius.
</blockquote>
<blockquote>
Climate change and adaptation have become one of the world&#39;s most important issues and have in recent years become increasingly integrated into the authorities&#39; work. How it can affect lab work and the planning of the official controls are some of the issues that Susanne has been working on in recent years. Working with climate and vulnerability analyses and action plans is under governmental regulation, but it also enables us to be prepared for new substances and new types of food in our screening methods. This type of methodology is very familiar to the pesticide community and future adaptions should work very well. Susanne will present some of the upcoming needs due to climate change.
</blockquote>
<blockquote>
Presenter: Steven Lehotay (Lead Scientist, USDA-ARS)
</blockquote>
<blockquote>
Steven J. Lehotay is a Lead Scientist with the USDA Agricultural Research Service at the Eastern Regional Research Center in Wyndmoor, Pennsylvania. Since 1992, he has conducted scientific investigations and method development research involving improvement in the analysis of pesticides, veterinary drugs, and other contaminants in food and environmental samples. He is the co-inventor of the “quick, easy, cheap, effective, rugged, and safe” (QuEChERS) sample preparation approach. He has been awarded with numerous honors, including the AOAC International Harvey W. Wiley Award, and according to the Stanford c-score metric, he resides among the top 0.19% of published analytical chemists.
</blockquote>
<blockquote>
Presenter: Dr. Jim Garvey (Head of Food Chemistry, Department of Agriculture, Food and the Marine, Ireland)
</blockquote>
<blockquote>
Dr. Jim Garvey graduated from The National University of Ireland (Galway) in 1988 with a Ph.D. in Organic Chemistry. After seven years in the pharmaceutical industry as a Research Chemist, he became the process development manager in a company producing high purity solvents for GC, HPLC, and MS. He joined the Pesticide Control Laboratory in 1999 and led the laboratory through many changes -- from the introduction of mass spectrometry techniques through various phases culminating in the implementation of HRMS techniques. He led the laboratory through the 2008 dioxin crisis. Since then he has overseen many phases of laboratory development and is currently managing the introduction of HRAM technology to the residues laboratory. In October 2019, he was appointed Head of Food Chemistry at the Department of Agriculture, Food and the Marine. As well as pesticides, the Food Chemistry division covers veterinary drugs, compositional analysis of dairy products, contaminants and elemental analysis. The objective of the new division is to build a centre of excellence for food chemistry within the Department of Agriculture Food and the Marine.
</blockquote>
<blockquote>
Presenter: Jana Hajšlová (Head of the Department of Food Analysis and Nutrition, UCT Prague)
</blockquote>
<blockquote>
Professor Jana Hajšlová is Head of the Department of Food Chemistry and Analysis at the Institute of Chemical Technology, Prague. Since 2000, she has been Head of Accredited Laboratory (ISO 17025) focusing on the analysis of food and environmental contaminants, toxicants and biologically active compounds.
</blockquote>
<blockquote>
Presenter: Dr. Yelena Sapozhnikova (Research Chemist, USDA-ARS)
</blockquote>
<blockquote>
Dr. Yelena Sapozhnikova is a Research Chemist at the Agricultural Research Service, United States Department of Agriculture (USDA) in Wyndmoor, PA, USA. Her research focuses on the development of new methods for the residual analysis of chemical contaminants, including pesticides, environmental and emerging contaminants, food packaging chemicals using gas and liquid chromatography with mass spectrometry. Dr. Sapozhnikova has over 20 years of experience in the analysis of chemical contaminants in food and environmental samples.
</blockquote>
<blockquote>
Presenter: Cristina Nerín (Professor of Analytical Chemistry, University of Zaragoza)
</blockquote>
<blockquote>
Dr. Cristina Nerín is Professor of Analytical Chemistry at the University of Zaragoza, Spain. She is the Director of the Research Group GUIA at the University of Zaragoza and was Director of the Master in Environmental Engineering program from 1990 to 2012. Dr. Nerín is an author of more than 320 scientific publications. Dr. Nerín is also Principal Investigator of more than 200 research projects and an inventor in eight international Patents related to packaging, all in commercial applications. Dr. Nerín has received six research awards, participated in more than 140 international conferences, and instructed courses in Europe, Asia and South-America. Dr. Nerín is on the organizing committee and Chair of several international symposia.
</blockquote>
<blockquote>
Presenter: Dwayne Shrunk (Laboratory Manger of Analytical Chemistry Services, Veterinary Diagnostic Laboratory (VDL) at Iowa State University)
</blockquote>
<blockquote>
Dwayne is an accomplished analytical chemist with over 25 years of laboratory experience both as an operator and manager. While supporting research and collaborative partnerships, he is well versed in method development and validation, QA/QC, and lab information management. VDL is recognized as national leader in protecting animal and human health, Wayne’s leadership at one of the full-service laboratories at the VDL process upwards of 100,000 cases each year and conduct more than a million tests annually. As a fully accredited facility by the American Association of Veterinary Laboratory Diagnosticians, the VDL provides quality diagnostic services for animal species, including necropsy, bacteriology, serology, histopathology, virology, parasitology, molecular diagnostics, and toxicology as well as offering analytical services, where understanding the impact natural toxins contribute to the ongoing health of animals is important.
</blockquote>
<blockquote>
Presenter: Tim Stratton (Manager of Library Technologies, Thermo Fisher Scientific)
</blockquote>
<blockquote>
Graduate of the University of Minnesota. Started my career as an analyst in pharma working in regulated analysis, quality control, method validation, etc. for many years with Solvay Pharmaceuticals. Migrated into pharma research when I moved to Abbott Laboratories working in drug metabolism and pharmacokinetics in all aspects from early high throughput screening to post market phase 4 studies. My work in research extended for almost 10 years and included working for both large and small pharma companies. My specific area of focus was structure elucidation and fragmentation interpretation and it’s still an area I really enjoy. I joined Thermo Fisher almost ten years ago working in the Pharma vertical marketing group, mainly because they promised I could play with the latest toys before they were available. Since then I’ve been involved in hardware and software testing and development as well as working directly with customers for support and to better understand their needs. The past few years I’ve transitioned to focus more on the construction of high resolution accurate mass MS/MS and MSn spectral libraries to help with identification of unknowns across all areas of research and this continues to be the main area of focus for me.
</blockquote>

SelectScience: Emerging trends and future directions in food testing

Identifying and controlling mycotoxins in livestock and food products

In this webinar series, we bring together leading experts in the fields of pesticides analysis, mycotoxin testing and food contact materials characterization.

Identifying and controlling mycotoxins in livestock and food

Data integrity continues to be a major problem in GXP regulated laboratories often giving Health Authorities reason to doubt data generated. Following untitled letters sent to Panexcel and Synchron Research Services last year, sponsors have to repeat all bioequivalence studies analysed by these two contract research organisations as the data cannot be trusted.
Therefore, the presentation will cover the following topics to describe how to use application software to ensure data integrity:
<ol>
<li>Process understanding is critical: map and simplify the process to be automated</li>
<li>Audit trail requirements and potential problems for system selection and operational use</li>
<li>Selecting the right system for the job</li>
<li>User Roles and Access Privileges</li>
<li>Prototype the process with configured software and refining if required</li>
</ol>
<h3>Attend this webinar to learn:</h3>
<ul>
<li>How to design, select and implement application software to ensure data integrity in GXP regulated Laboratories</li>
<li>How to avoid conflicts of interest when defining user roles and access privileges</li>
<li>How to write intended use requirements to enable system selection</li>
</ul>
<blockquote>
Presenter: Bob McDowall, PhD (Director, R D McDowall Limited)
</blockquote>

Technology Networks: How To Design, Select and Implement Application Software To Ensure Data Integrity in GXP Regulated Laboratories

How To Design, Select and Implement Application Software To Ensure Data Integrity in GXP Regulated Laboratories

Ensure Data Integrity in GXP Regulated Laboratories

Food testing regulatory methods around the world require separation of fatty acid and its isomers when determining fatty acid composition by GC/FID. This is, perhaps, one of the oldest and most popular gas chromatography analyses. Unfortunately, choosing right GC column for the right application is not an easy task. This is in part because the set of analytes that needs to be resolved is challenging.
Are you looking for solutions to achieve fast, accurate and reproducible separations of FAMEs, fatty acids and triglycerides from both simple and complex samples? Join this webinar as it will provide you with a guideline and tips to find out if you are using the right GC column for the right fat and oil application. 
<h3>In this webinar, we will discuss:</h3>
<ul>
<li>Selection of columns for critical cis/trans separations</li>
<li>New Innovative technologies in GC column chemistries for FAME analysis</li>
<li>New High-Resolution columns for faster analysis of FAMEs</li>
</ul>
<blockquote>
Presenter: Dr. Rajni Mujoo (Technical Support Specialist, Chemistries &amp; Supplies Division, Agilent Technologies)
</blockquote>
<blockquote>
Dr. Rajni is working with us as Technical Support Specialist in Chemistries and Supplies Division at Agilent Technologies since 2011. She has a Ph.D degree in Food Science from CFTRI, Mysore and Post Doctorate from Department Of Food Science, Michigan State University. She also has four International Presentations &amp; 13 publications in reputed National &amp; International journals to her credit. Rajni has a total work experience of 16 yrs spread across research and Sales building expertise in different Instrument techniques.
</blockquote>

Agilent Technologies: New GC Column Technology for Old Problems in Fatty Acid Analysis

New GC Column Technology for Old Problems in Fatty Acid Analysis

Join this webinar as it will provide you with a guideline and tips to find out if you are using the right GC column for the right fat and oil application.

New GC Column Technology for Fatty Acid Analysis

What do we do if the compound of interest is not a hydrocarbon or has a poor response in an FID?
What do we do if we need to confirm the identity of a target and/or an unknown?
What if we require a better response?
This course will cover a wide range of detectors and what they will help you achieve.
<blockquote>
Presenter: Chris Goss (InnoTech Alberta, Research Technologist)
</blockquote>
<blockquote>
Chris has worked in gas chromatography for 20+ years after graduating from the University of Alberta. The last 20 years doing research, method development, and standard methods for the petroleum testing industry
</blockquote>
<blockquote>
Presenter: Bill Hahn (Principle Field Application Specialist, PerkinElmer)
</blockquote>

Perkin Elmer: Gas Chromatography Learning Series Spring 2022

Detection: Learn What Detector is the Best For Your Analysis

This course will cover a wide range of detectors and what they will help you achieve.

We are interested in the growth of new materials and investigate physical properties affected by size, chemical doping, interface, heterostructure, and external tuning parameters (light, magnetic field, etc.).
We are particularly interested in understanding the optical and dielectric properties of novel electronic materials that are fabricated in our lab in thin film form. Since the discovery of graphene, Transition metal dichalcogenides (TMDs) have merged as one of the most exciting systems to investigate properties at the nanoscale. In our lab, we have developed few-layer large-area MoS2 thin-films using a PVD-CVD growth process that can produce films with tunable properties [1]. For this talk, I will specifically focus on their broadband dielectric properties measured using Shimadzu UV3600 Plus [2]. Next, I will discuss our work on the influence finite-size in Topological insulator Bi2Se3 thin-films. Through a combination of quantum confinement and Burstein-Moss effect, we discovered a large optical blue-shift in Bi2Se3 as it approaches the 2D limit [3].
References
<ol>
<li>Viable route towards large-area two dimensional MoS2 using magnetron sputtering, H. Samassekou, A. Alkabsh, M. Wasala, M. Eaton, A. Walber, A. Walker, O. Pitkänen, K. Kordas, S. Talapatra, T.Jayasekera, Dipanjan Mazumdar, 2D Materials 4 021002 (2017).
</li>
<li>Broadband optical properties and electronic band structure of few-layer MoS2, Asma Alkabsh and Dipanjan Mazumdar, (unpublished) 2020.
</li>
<li>Optical evidence for blue shift in Topological insulator Bismuth selenide in the few-layer limit , Yub Raj Sapkota, Asma Alkabsh, Aaron Walber, Hassana Samassekou, Dipanjan Mazumdar, Applied Physics Letters, 110, 181901 (2017).
</li>
</ol>

Shimadzu: Optical and dielectric properties of novel electronic materials using Shimadzu UV-3600 Plus

Optical and dielectric properties of novel electronic materials using Shimadzu UV-3600 Plus

Broadband dielectric properties measured using Shimadzu UV3600 Plus.

Optical and dielectric properties of electronic materials

The integrating sphere accessory is the most frequently used accessory on UV/Vis/NIR instruments.
With an integrating sphere, one can measure just about any sample type including, solids, liquids, gels, creams, films, particle suspensions, skin, and other biologicals. In addition, samples that are turbid, cloudy, semi-transparent, or opaque can be easily measured as well. Integrating spheres are the Swiss Army Knife of spectroscopy. The ability to understand the measurement techniques of spheres is key to the evaluation of spectrophotometric materials characterization data.
The most common question materials characterization spectroscopists ask themselves is, “How do I measure this sample?” They ponder this as they are looking some unusual sample, like a rock or even a cockroach. And yes, they can both be measured with an integrating sphere accessory!
This webcast will consist entirely of spectra from a series of example samples that cover the range of specular and diffuse reflectance/transmission characteristics. We will concentrate on the decision-making process of how to measure these different sample types with both the stand-alone instrument and integrating sphere accessary. Included will be a detailed discussion of how to evaluate spectral data from the various sphere measurement formats. This webinar will also cover all the basic measurement configurations of integrating spheres and how to properly evaluate the sample’s material properties from collected spectra.
<blockquote>
Presenter: Jeffrey L. Taylor, Ph.D. (Molecular Spectroscopy Guru, Industry Expert With Over 35 Years of Experience)
</blockquote>
<blockquote>
Dr. Jeffrey L. Taylor received his Bachelor of Science degree from Georgia College and State University with dual majors in Physiology and Organic Chemistry. He obtained a Master of Science degree from the University of Georgia in Toxicology and later a Doctor of Philosophy degree from the same school in Biochemistry and Spectroscopy.
</blockquote>
<blockquote>
He has spent his career of over 35 years with major spectroscopy instruments manufacturers, mainly working as Field Product Specialist and Senior Staff Scientist. Areas of expertise include technical support of sales, customer support/training, applications design and development, software specification/evaluation, and instrumental design and evaluation. He is the author of numerous application notes, conference presentations and webcasts, and holder of several patents.
</blockquote>
<blockquote>
Dr. Taylor, although retired, maintains his desire to contribute to the field. He is currently a consultant for Shimadzu Scientific Instruments to assist with sales support, application support and development of web-based educational resources.
</blockquote>
<blockquote>
Presenter: Sudhir Dahal, Ph.D. (Product Manager - Molecular Spectroscopy, Shimadzu Scientific Instruments)
</blockquote>
<blockquote>
Sudhir Dahal is Product Manager of Molecular Spectroscopy group at Shimadzu Scientific Instruments, USA. He joined the company after obtaining his PhD from University of Maryland Baltimore County (UMBC), where he researched and collaborated on developing novel spectroscopy-based technique for brain tumor cell detection. At Shimadzu Scientific Instruments, he and his group are responsible for overall sales support of molecular spectroscopy products in North America, Central America and parts of South America. The products include UV-Vis-NIR, FTIR, Fluorescence spectrophotometers and accessories.
</blockquote>
<blockquote>
,His everyday responsibilities include, but are not limited to, teaching classes to sales/technical support engineers and customers, producing scientific literatures, researching new products and applications, representing Shimadzu at conferences and promoting the products through various marketing campaigns.
</blockquote>

Shimadzu: Measuring Diverse Samples With UV-Vis-NIR Spectrophotometer: An Example Workflow and Evaluation Methodology for Integrating Spheres

Measuring Diverse Samples With UV-Vis-NIR Spectrophotometer: An Example Workflow and Evaluation Methodology for Integrating Spheres

Spectra from a series of example samples that cover the range of specular and diffuse reflectance/transmission characteristics.

Measuring Diverse Samples With UV-Vis-NIR Spectrophotometer

According to the PIC/S guidance complex or open-ended processes that lead to subjective interpretation, can result in an increase in data failures. &nbsp;One way to reduce this risk is with a simplified, well-defined process. &nbsp;Empower software enables you with tools to create structure in your chromatographic processes and workflow. &nbsp;Leveraging a well-defined workflow along with a clear SOP that details important steps, such as how to work thru reprocessing of data, will reduce the risk of failures. &nbsp;More complexity added to a workflow can result in an increase in data review requirements and subsequently the associated audit trails.In this webinar we will define a chromatographic workflow with Empower software to support data integrity goals. &nbsp;Starting with method development, method validation, and routine usage to data acquisition, data processing, reporting results, and using control charts to track and trend data.Please join us for this live discussion to learn more and bring your Empower software questions for this exclusive opportunity to ask our expert, Neil Lander, anything about Empower CDS!<blockquote>Presenter: Neil Lander (Principal Product Manager, Informatics, Waters Corporation)Neil has worked for Waters Corporation since 1994 and has held a variety of positions including Technical Support Specialist, Technical Trainer, Manager Customer Education and currently, Principal Marketing Manager focusing on Informatics solutions. He provides internal support for Empower Chromatography Data System and is focused on developing laboratory software solutions that help organizations achieve their scientific and operational objectives. Prior to joining Waters, he was an analytical chemist where he gained experience in both the cosmetics and specialty chemical industries.</blockquote>

Waters Corporation: Empower Tips: Ask Me Anything About Streamlining Your Workflow to Support Data Integrity Goals

Empower Tips: Ask Me Anything About Streamlining Your Workflow to Support Data Integrity Goals

In this webinar we will define a chromatographic workflow with Empower software to support data integrity goals. 