Determination of Methylphosphonic Acid and Alkyl Methylphosphonic Acid Esters in Soils by Liquid Chromatography–High-Resolution Mass Spectrometry

Vokuev, M.F.; Braun, A.V.; Baygildiev, T.M.; Rybalchenko, I.V.; Rodin, I.A.

Авторы: Vokuev M.F., Braun A.V., Baygildiev T.M., Rybalchenko I.V., Rodin I.A.
Журнал: Inorganic Materials
Том: 59
Номер: 14
Год издания: 2023
Издательство: Maik Nauka/Interperiodica Publishing
Местоположение издательства: Russian Federation
Первая страница: 1396
Последняя страница: 1405
DOI: 10.1134/s0020168523140157
Аннотация: A method has been optimized for simultaneous extraction of ethyl methylphosphonic acid ester (EMPA), isopropyl methylphosphonic acid ester (IPMPA), isobutyl methylphosphonic acid ester (IBMPA), pinacolyl methylphosphonic acid ester (PMPA), and methylphosphonic acid (MPA), which are highly polar products of nerve agent hydrolysis, from soil with their further determination by high-performance liquid chromatography–high-resolution tandem mass spectrometry (HPLC–HRMS/MS). The ions observed in the fragmentation mass spectra of deprotonated EMPA, IPMPA, IBMPA, PMPA, and MPA molecules and their deuterated analogs (d3-EMPA, d3-IPMPA, d3-IBMPA, d3-PMPA, and d3-MPA), as well as possible structural formulas of the fragment ions, are presented. Liquid extraction with deionized water followed by concentration by evaporation was used to prepare soil samples for analysis. The components were separated using reverse-phase chromatography. The time required for the sample preparation and analysis of the soil samples was no more than 1 h. The detection limits in soil were 0.05 ng/g for EMPA and IPMPA, 0.02 ng/g for IBMPA and PMPA, and 1 ng/g for MPA.
Добавил в систему: Вокуев Михаил Фёдорович

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Determination of Methylphosphonic Acid and Alkyl Methylphosphonic Acid Esters in Soils by Liquid Chromatography–High-Resolution Mass Spectrometryстатья

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