Development and validation of a method to determine pesticides in river water using QuEChERS combined with UHPLC-MS/MS release_txgt4j2blvdb5po2v3hq7zs3c4

by Vanessa Carvalho Pereira Ramos, Sueli Pércio Quináia, Yohandra Reyes Torres, Liliane Schier de Lima, Christiane Schineider Machado

Published in Revista Ambiente & Água by Instituto de Pesquisas Ambientais em Bacias Hidrograficas (IPABHi).

2024   Volume 18, p1-10

Abstract

The continuous increase in the use and release of pesticides is worrisome because water contamination can affect health and the environment. This study optimized and validated a multi-residue method in water. The method was developed using the QuEChERS method (Quick, Easy, Cheap, Effective, Rugged, and Safe) followed by ultrahigh- performance liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS). The validation was performed on the matrix (river water) regarding accuracy, precision, linearity, limits of detection (LODs) and limits of quantification (LOQs). LODs were below 3.03 µg L-1and LOQs were from 6.25 to 9.18 µg L-1. The accuracy (recoveries in the range of 80-117%) and for Inter-day precision, the coefficients of variation ranged from 0.35 to 15.71%, and for Intra-day precision were in the range of 0.48 to 7.02%.
 Keywords: multi-residue analysis, pesticide, QuEChERS, water.
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