Validation and Uncertainty of the method for multiresidue analysis of 35 pesticides in melon using Gas Chromatography Coupled to Quadrupole Mass Spectrometry (GC-QP/MS)

Autor: Maria Aparecida Liberato Milhome, R C de Castro, Lucélia Katia Lima, Cleidiane Gomes Lima, Jonas da Silva Sousa, Ronaldo Ferreira do Nascimento, G A Andrade
Rok vydání: 2015
Předmět:
Zdroj: Journal of Physics: Conference Series. 575:012032
ISSN: 1742-6596
DOI: 10.1088/1742-6596/575/1/012032
Popis: QuEChERS method and detection in GC/SQ-MS were validated for the analysis of 35 pesticides in melon. Validation parameters (selectivity, linearity, LOD, LOQ, accuracy and precision) were determined according ABNT NBR 14029:2005. The recoveries rates for all the pesticides studied were from 63% to 117% with relative standard deviation (RSD) lower than 15% in the concentration range of 0.05 - 0.20 mg/kg. The limit of quantification (LOQ) for most compounds were below the MRLs established in Brazil. The combined relative uncertainty (Uc) and expanded uncertainty (Ue) was determined using repetitivity, recovery and calibration curves data for each pesticide.
Databáze: OpenAIRE