Pesticide residues screening in wine by mass spectrometry
2016
Machado, Andrea F. | Suelen, Militão | Sarubbi, Magda M. | Alexandre, Brandelli
Recently, a study (from PAN Europe) covered 40 bottles of wine – 34 conventional and six organic ones – purchased inside the EU. According to the results, the 34 bottles of conventional wine together contained 148 pesticide residues. All 34 bottles contained from one to ten pesticides, bringing the average per bottle to more than four. Of the six bottles of organic wine tested, one sample contained a low concentration of a possibly carcinogenic pesticide. According to PAN Europe, the “contamination of wines is a direct result of over-reliance on pesticides in grape production”. This study, between others, to prove the importance of develop methods sensivity and confident for pesticide detection in wine. A multi-residue method was developed for the determination ca of 250 pesticide residues in wine using Quechers extraction, gas chromatography-tandem mass spectrometry (GC-MS-MS) and liquid chromatography-tandem mass spectrometry (LC-MS-MS). The method was validated with the evaluation of follow parameters: Linearity, Precision, Accuracy, Matrix effect, Limit of detection and Limit of Quantification. The method was approved and was able to quantify pesticide residues in more than 60 samples of wine.
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