Abstract
A method has been proposed for the determination of 17 herbicides and their metabolites in natural waters by capillary zone electrophoresis with UV detection at 190 nm. Dispersive liquid-liquid microextraction with trichloromethane has been used for pesticide recovery from water. The high sensitivity of determination has been provided by additional intracappilary preconcentration: the limits of pesticide detection in water involving off- and on-line preconcentration are 0.5–3.0 μg/L. The analysis takes 1–1.5 h; the relative standard deviation of the analysis results does not exceed 5%.
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Original Russian Text © D.S. Bol’shakov, V.G. Amelin, A.V. Tret’yakov, 2014, published in Zhurnal Analiticheskoi Khimii, 2014, Vol. 69, No. 1, pp. 77–87.
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Bol’shakov, D.S., Amelin, V.G. & Tret’yakov, A.V. Determination of herbicides and their metabolites in natural waters by capillary zone electrophoresis combined with dispersive liquid-liquid microextraction and on-line preconcentration. J Anal Chem 69, 72–82 (2014). https://doi.org/10.1134/S106193481311004X
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DOI: https://doi.org/10.1134/S106193481311004X