Topic

Articles

How to lower the limits of quantitation as the regulatory landscape continues
to evolve.

Lowering Limits of Quantitation in LC–MS/MS Analyses for Food Safety and Environmental Applications

 is a Ph.D. student in the Department of Food Analysis and Nutrition, University of Chemistry and Technology, Prague (Czech Republic). His main research interests are analysis of chlorinated paraffins and mineral oil hydrocarbons.

 is a master’s student in the Department of Food Analysis and Nutrition, UCT Prague. His research topic is on the analysis of chlorinated paraffins employing liquid chromatography‑based techniques.

 is a Ph.D. student at the Department of Food Analysis and Nutrition, UCT Prague. Her research is focused on the application of LC–HRMS in metabolomic and lipidomic studies.

Tomas Kourimsky is a Ph.D. student in the Department of Food Analysis and Nutrition, UCT Prague. His research is focused on the analysis of MCPD and its esters employing GC–MS/MS and SFC–HRMS.

 is a research assistant in the Department of Food Analysis and Nutrition, UCT Prague. His main research interests (but not limited to) are the application of (high resolution) mass spectrometry in the analysis of bioactive compounds and contaminants in food.

Jana Hajslova is a professor at UCT Prague. She is the head of ISO 17025/2018 accredited laboratory and also heads a research group concerned with separation science in the field of food/environmental analysis. She is the chair of a series of prestigious international symposia, Recent Advances in Food Analysis (RAFA, www.rafa2021.eu).

Jana Pulkrabova is a professor of Food Chemistry and Analysis and a Head of the Department of Food Analysis and Nutrition at UCT Prague. Her research group studies groups of organic pollutants in food, internal and external environment, and human biological monitoring.

This article presents SFC and UHPLC—both coupled with HRMS—methods for the analysis of short-, medium-, and long-chain CPs in fish oil-based dietary supplements.

Application of Liquid- and SFC Coupled with HRMS for the Analysis of Short-, Medium-, and Long-Chain Chlorinated Paraffins in Dietary Supplements

This method greatly facilitates the analysis of a large number of pesticides.

Analysis of Near 400 Pesticides in Tea via LC–MS/MS: Simple Sample Preparation and APCI to Improve Analyte Coverage

The importance of accurate analysis methods for EtO and 2-CE in food is essential and the demand for robust methods that are able to deliver high sample throughput with minimal instrumental downtime is high.

Analysis of Ethylene Oxide and 2-Chloroethanol in Food Products: Challenges and Solutions

In this study, SFC and UHPLC—both coupled with HRMS—methods for the analysis of short-, medium-, and long-chain CPs in fish oil-based dietary supplements were developed and validated at concentration levels of 0.6 and 3.0 µg/g lipid weight (lw). 

Application of Liquid- and Supercritical Fluid Chromatography Coupled with High-Resolution  Mass Spectrometry for the  Analysis of Short-, Medium-,  and Long-Chain Chlorinated Paraffins in Dietary Supplements

This method for PFAS analysis in milk and infant formula is robust, reliable, and reproducible, with scope to expand the list of PFAS in the future.

Quantitative Analysis of PFAS in Milk, Infant Formula, and Related Ingredients Using LC–MS

Jana Kvirencova is a Ph.D. student in the Department of Food Analysis and Nutrition, University of Chemistry and Technology (UCT), Prague, Czech Republic. Her research is focused on the application of LC–HRMS in metabolomic studies and also the application of mass spectrometry in the analysis of polar pesticides.

Monika Tomaniova is a research assistant in the Department of Food Analysis and Nutrition, UCT Prague. Her research is focused on developing and validating analytical methods for the determination of organic contaminants in food and environmental compartments. Her research interests also lie in metabolomic studies concerned with the authenticity of food and feed.

This article describes the method development involved in the authentication of nutraceuticals, particularly those containing Panax ginseng, which is popular because of possible positive effects on human health.

Authentication of Panax Ginseng‑Based Herbal Teas Using “Chemical Markers” Strategy

Quantitative Analysis of PFAS in Milk, Infant Formula, and Related Ingredients Using Liquid Chromatography–Tandem Mass Spectrometry

In our study, a fast and sensitive liquid chromatography coupled to tandem mass spectrometry (LC–MS/MS) method for the determination of vitamin D2 in fresh mushrooms and its metabolite 25(OH)D2 in the blood of volunteers regularly consuming UV-treated mushrooms has been introduced.

Analysis of UV-Treated Mushrooms: Dietary Source of Vitamin D2?

Per- and polyfluoralkyl substances (PFAS) are found in our food. Sensitive, precise, and accurate analytical methods are needed to estimate human exposure to these chemicals. A comparative study was performed between two extraction and cleanup methods (solid-phase extraction [SPE] and dispersive SPE) for the analysis of PFAS in apples. Both methods showed excellent sensitivity, precision, and accuracy. dSPE has some benefits over conventional SPE, and vice versa. The advantages and disadvantages of both methods are discussed.

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