Tomas Kourimsky

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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.

Articles

High performance liquid chromatography (HPLC) is a technique in analytical chemistry used to separate, identify, and quantify each component in a mixture | Image Credit: © Love Employee - stock.adobe.com

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

Jakub Tomasko;David Maxa;Klara Navratilova;Tomas Kourimsky;Vojtech Hrbek;Jana Hajslova;Jana Pulkrabova

October 1st 2023

Scientists used supercritical fluid chromatography (SFC) and ultrahigh-pressure liquid chromatography (UHPLC)—both coupled with high-resolution mass spectrometry (HRMS)—to analyze various types of chlorinated paraffins (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

Jakub Tomasko;David Maxa;Klara Navratilova;Tomas Kourimsky;Vojtech Hrbek;Jana Hajslova;Jana Pulkrabova

October 1st 2022

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

Jakub Tomasko;David Maxa;Klara Navratilova;Tomas Kourimsky;Vojtech Hrbek;Jana Hajslova

July 1st 2022

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).

Analysis of MCPD and Glycidyl Fatty Acid Esters in Refined Plant Oils by Supercritical Fluid Chromatography– High-Resolution Mass Spectrometry

Tomas Kourimsky;Vojtech Hrbek;Jana Hajslova;Martin Steidl

July 1st 2022

The aim of this study was to develop an efficient method to enable a rapid determination of nine 3-MCPDEs and seven GEs in vegetable oils within a single run employing supercritical fluid chromatography coupled to high-resolution tandem mass spectrometry (SFC–HRMS/MS).