Séminaires vidéo

Moisture Content is a key parameter for all food and feed laboratories. It is needed for dry base calculations as well as for the general water content determination. In milk and milk products, the amount of total solids TS is an important parameter. Additionally, dairy products such as cheese require water content analysis for dry base calculations. This webinar gives an overview of automated thermogravimetry system, that analyzes simultaneously up to 16 samples for moisture content.

Joining us from University of Southampton, Prof. John Langley, Head of Characterisation and Analytics, Chemistry, present on the latest advancements in renewable and sustainable fuel analysis. Prof. Langley explores how these next-generation fuels introduce new hurdles for quality measurement, requiring innovative hyphenated techniques, including GC-MS and comprehensive two-dimensional gas chromatography (GCxGC-MS). He discusses how GCxGC-MS is pivotal for comparing and analyzing different HVOs, providing clarity on how these tools enable the screening of differences and similarities across various renewable fuel sources.

Part of the 2024 Non-Target Screen Webinar Series

Joining us from William and Mary, Dr. Katelynn A. Perrault Uptmor, PI of the Nontargeted Separations Laboratory , present her work of screening samples using comprehensive two-dimensional gas chromatography with time-of-flight mass spectrometry (GCXGC-TOFMS) in forensic applications as novel types of evidence appear. Dr. Perrault Uptmor highlights initial approaches to method development for new samples and show recent applications related to chemical profiling of deposited fingermarks, organic gunshot residue and decomposition odor. She also discusses the implications of GCXGC-TOFMS sample visualization in the context of expert testimony for communicating screening processes in forensic casework within the courtroom.

Part of the 2024 Non-Target Screen Webinar Series

Joining us from The Open University, UK, Dr. Geraint Huw Morgan, STEM Research Infrastructure Lead and Director of the Centre for Analytical Solutions, present an in-depth exploration of non-targeted screening techniques for complex aroma profiles. Drawing on his extensive experience in developing advanced methods for volatile organic compounds (VOCs), Dr. Morgan highlights innovative approaches and methodologies using advanced technologies like GCxGC-MS, and TOF-MS.

Part of the 2024 Non-Target Screen Webinar Series

Joining us from University of Liège in Belgium, Jef Focant and PH Stefanuto present how the Organic Biological Analytical Chemistry Group utilizes GCxGC-TOFMS in their research. Focant provides a comprehensive overview of testing complex matrices samples, demonstrating the wealth of information that can be gained from analyses across various metabolomics applications. Stefanuto explores the microbiome, offering insight into the using GCxGC-TOFMS to unravel complex samples, paving the way for innovative discoveries.

Part of the 2024 Non-Target Screen Webinar Series

Professor Susan Richardson from the University of South Carolina will delve into her groundbreaking research on a newly discovered class of disinfection byproducts in drinking water. Using advanced techniques such as gas chromatography coupled with high-resolution mass spectrometry, Professor Richardson sheds light on the implications for water safety and public health. Discover the benefits of mass spectrometry for environmental analysis and gain insight into the future of drinking water quality assessment.

Part of the 2024 Non-Target Screen Webinar Series

Pegasus BTX Introduction; Product Launch Video

Nick Jones walks through the application work being done on the Pegasus BTX

Thermogravimetric Analyzer provides accurate, high-precision thermogravimetric constituent analysis—moisture, ash, volatile content, and LOI in various organic, inorganic, and synthetic materials.

We explore the capabilities of LECO technology and the impact it is having on overcoming the challenges faced in the Aroma, Flavor, and Fragrance industry.

This webinar covers several methods of determining moisture and ash content, with a focus on the weight loss on drying method for moisture and the weight loss after combustion method for ash. We offer an in-depth overview of the technology used and demonstrate its capabilities with several analytical examples.

Several methods of determining moisture and ash content, with a focus on the weight loss on drying method for moisture and the weight loss after combustion method for ash.

Dr. Heather Bean (Arizona State University) discusses using GCxGC-TOF MS to detect and phenotype infections directly from lung samples.

Explore the differences between the Kjeldahl and Dumas methods and describe the benefits of the latter. We also cover the advantages of the ballast/aliquot principle, provide analytical examples, and conduct a live demonstration, followed by a Q&A session.

ChromaTOF Tile demonstration, "Cannabis Data Processing using ChromaTOF Tile" from 2021 LECO North American GCxGC Symposium.

ChromaTOF Tile versatility demonstration from 2021 LECO North American GCxGC Symposium.

Introduction and overview of ChromaTOF Tile, introduced to LECO customers in the 2021 LECO North American GCxGC Symposium.

When you don't know what you're looking for, as is often the case with environmental contaminants and pollutants, the task can seem daunting, but high-resolution TOFMS and GCxGC is a powerful combination for non-target searches. With the tools included with the Pegasus® HRT4D and the Multi-Mode Source™ (MMS™), identification of unknowns can be vastly improved and assigned higher confidence.

Small time savings throughout the workflow can add up to big savings. See aroma and flavor examples of how automated sample prep and elevated Time-of-Flight Mass Spectrometry (TOFMS) analysis, followed by software solutions to compare and evaluate data and results, can save your lab time and resources.

Helium is becoming an increasingly limited natural resource; using Hydrogen to achieve increased chromatographic throughput in GC applications is attractive. Both have advantages and disadvantages. LECO experts investigated the use of Hydrogen as a carrier gas for GC-TOF-MS analysis. Nick Jones, LECOs Global Application and Development Director (Separation Sciences) presents the method transfer approaches used, the technological benefits, and application examples in the presentation below.