Validation of the multiresidual GC-MS method for determining plant protection product residues in strawberries

Gas chromatography coupled with mass spectrometry was used for the introduction and validation of the multiresidual method for determining of plant protection product residues in strawberries. During the validation procedure, limits of quantification were set and the method was checked for its recov...

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Bibliographic Details
Main Author: Helena BAŠA ČESNIK
Format: Article
Language:English
Published: University of Ljubljana Press (Založba Univerze v Ljubljani) 2018-10-01
Series:Acta Agriculturae Slovenica
Subjects:
Online Access:https://journals.uni-lj.si/aas/article/view/12799
Description
Summary:Gas chromatography coupled with mass spectrometry was used for the introduction and validation of the multiresidual method for determining of plant protection product residues in strawberries. During the validation procedure, limits of quantification were set and the method was checked for its recovery, linearity, repeatability, reproducibility and measurement uncertainty. An interlaboratory comparison was also performed to check the accuracy of the method. The method was proven to be fit for purpose. Afterwards 19 strawberry samples were analysed for the presence of plant protection product residues using the validated method. In the strawberries 5 active substances, all fungicides, were found: chlorothalonil, cyprodinil, fludioxonil, metalaxyl+metalaxyl-M and pyrimethanil. Residues of these active substances were in range 0.01 – 0.44 mg/kg. No cases exceeding the maximum residue levels were measured.
ISSN:1854-1941