Direct Analysis of Glyphosate, Glufosinate and AMPA in Beverages Using a Triple Quadrupole LC/MS/MS

Glyphosate and glufosinate are active ingredients in widely used foliar herbisides. When degraded in soil and water, glyphosate produces aminomethylphosphonic acid (AMPA) as a metabolite. Glyphosate, glufosinate and AMPA are all highly polar compounds, making retention in the reversed-phase mode with HPLC or LC-MS difficult. Therefore, analysis usually employs derivatization using FMOC. This article introduces a method for a high-sensitivity measurement of glyphosate, glufosinate and AMPA that does not require complex pretreatment or time-consuming derivatization. Featuring very simple pretreatment procedures comprising only filtering and dilution, the method obtained favorable recovery factors with actual samples.

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Liquid Chromatograph-Mass Spectrometry, Mass Spectrometry
FMOC, FMOC-Cl, 9-Fluorenylmethyl chloroformate, Chloroformic acid 9-fluorenylmethyl ester, Derivatization, Residual pesticide, Food and Beverages, Food development, LCMS-8050
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