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V. G. Amelin, M. A. Saun’kina, A. M. Andoralov
DIrect analysis
of natural waters in real time by electrospray ionization / quadrupole
time-of-flight high-resolution mass spectrometry. determination of pesticides
different classes
Abstract
The possibility
of direct determination of 36 pesticides (urea derivatives, triazines,
triazoles, imidazoles, carbamates, triazinones, benzamides, pyridazinone,
organophosphorus pesticides) by electrospray ionization / quadrupole-time of
flight mass spectrometer high resolution in natural waters has been showed. A
significant effect in the determination of the matrix of pesticides in natural
waters, and proposed to use the standard addition method for their
determination in undiluted and diluted in deionized water, the analyzed sample.
Ranges defined analyte content is 0.5–50 ng / mL. The relative standard deviation
of the test results does not exceed 0.1, the analysis time of 10–15 minutes.
Key words:
direct electrospray ionization in real time, quadrupole time-of-flight mass
spectrometry high-resolution, analysis of natural waters, pesticides.
Copyright (C) Chemistry Dept., Moscow State University, 2002
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