Multiresidue method for triazines and pyrethroids determination by solid-phase extraction and gas chromatography-tandem mass spectrometry
This research aimed at implementing and validating a method for analysis of pesticide residues in crops. QuEChERS extraction method with PSA purification was used following analyzes by gas chromatography with tandem mass spectrometry in Selected Reaction Monitoring mode. A short run method was succe...
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Published in: | Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes Vol. 55; no. 10; pp. 865 - 875 |
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Main Authors: | , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
Philadelphia
Taylor & Francis
2020
Taylor & Francis Ltd |
Subjects: | |
Online Access: | Get full text |
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Summary: | This research aimed at implementing and validating a method for analysis of pesticide residues in crops. QuEChERS extraction method with PSA purification was used following analyzes by gas chromatography with tandem mass spectrometry in Selected Reaction Monitoring mode. A short run method was successfully developed for the determination of 41 pesticides, confirmed by two precursor-products for each analyte. The calibration curve for each analyte was linear at concentration range from 1 to 500 μg kg
−1
with correlation coefficients higher than 0.99, low limits of detection (0.03 − 10.22 μg kg
−1
) and satisfactory precision. The developed method was used to investigate apples; mangos; strawberries; cucumbers and tomatoes from the Rio de Janeiro Food Distribution Center (CEASA).Most of the targeted pesticides (78%) were below detection limits. Apple and strawberry presented the highest pesticide contamination levels, many of which are not authorized by tthe Brazilian national regulatory agency (ANVISA). |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0360-1234 1532-4109 |
DOI: | 10.1080/03601234.2020.1790266 |