Univerzita Pardubice Fakulta chemicko- technologická

Univerzita Pardubice

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Publikace detail

The use of carbon-based columns in the analysis of structurally similar herbicides

Autoři: Kašpar Michal | Česla Petr

Rok: 2024

Druh publikace: ostatní - přednáška nebo poster

Strana od-do: nestránkováno

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	The use of carbon-based columns in the analysis of structurally similar herbicides	Alachlor, acetochlor, and metolachlor are herbicides used for weed control. Their use has been banned within the European Union due to their potential carcinogenic effects and high persistence in the environment (including degradation products). For this reason, effective control methods are necessary to prevent their further use [1]. Liquid chromatography using conventional C18 columns is practically the only method used for these purposes [2; 3]. Because of the similar structure of these pesticides, the octadecyl-silica-based columns fail in their chromatographic separation, and therefore detection using tandem mass spectrometry (MS/MS) is necessary. Columns based on porous graphitic carbon can be used for the separation of isomers and structurally related substances. The advantage of these columns compared to silica-based columns is in their stability under extreme conditions, such as high temperature (up to 200 °C) and the entire pH range. The aim of this study was to find suitable conditions for the separation of alachlor, acetochlor, and metolachlor using carbon-based columns.