Evaluation of alternative environmentally friendly matrix solid phase dispersion solid supports for the simultaneous extraction of 15 pesticides of different chemical classes from drinking water treatment sludge

Chemosphere
Karina L SoaresEdnei G Primel

Abstract

This study describes the development, optimization and validation of a method for the extraction of 15 pesticides of different chemical classes in drinking water treatment sludge (DWTS) by vortex-assisted Matrix Solid Phase Dispersion (MSPD) with determination by gas chromatography coupled to mass spectrometry. It focused on the application of alternative and different solid supports to the extraction step of the MSPD. The main parameters that influenced the extraction were studied in order to obtain better recovery responses. Recoveries ranged from 70 to 120% with RSD below 20% for all analytes. Limits of quantification (LOQ) of the method ranged from 5 to 500 μg kg(-1) whereas the analytical curves showed correlation coefficients above 0.997. The method under investigation used low volume of solvent (5 mL), low sample mass (1.5 g) and low mass of chitin (0.5 g), an environmentally friendly support. It has advantages, such as speed, simplicity and low cost material, over other methods. When the method was applied, 4 out of 15 pesticides were detected in the DWTS samples in concentrations below the LOQ.

Citations

Jun 20, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Ewa SzpyrkaMagdalena Podbielska
Sep 25, 2017·Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment·Peng SunYongfu Lian
Aug 15, 2018·Analytical and Bioanalytical Chemistry·Samanta UclésAmadeo R Fernández-Alba
Aug 14, 2018·Environmental Science and Pollution Research International·Julio Cesar WassermanEvaldo de Paiva Lima
Apr 17, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Luyi JiangChu Chu
Oct 28, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Xijuan Tu, Wenbin Chen
Nov 17, 2020·Food Chemistry·Stéfane Anecris Soares da Silva, Carolina Lourencetti

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