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Detection of Several Classes of Pesticides and Metabolites in Meconium by Gas Chromatography-Mass Spectrometry

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Abstract

A solid phase extraction method was developed to isolate multiple classes of parent pesticides from meconium. A methanolic/hydrochloric acid methyl ester derivatization with liquid-liquid extraction technique was also developed for the analysis of metabolites. Identification and quantitation was by electron impact gas chromatography-mass spectrometry. For the parent compounds and metabolites, recoveries in spiked meconium ranged between 72–109%, with coefficients of variation ranging from 1.55–16.92% and limits of detection between 0.01– 4.15 µg g−1. Meconium samples obtained from infants in the Philippines were assayed using these methods, and propoxur, cypermethrin, pretilachlor, malathion, 4,4′-dichlorodiphenyltrichloroethylene, bioallethrin, and cyfluthrin were detected.

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Bielawski, D., Ostrea, E., Posecion, N. et al. Detection of Several Classes of Pesticides and Metabolites in Meconium by Gas Chromatography-Mass Spectrometry. Chroma 62, 623–629 (2005). https://doi.org/10.1365/s10337-005-0668-7

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  • DOI: https://doi.org/10.1365/s10337-005-0668-7

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