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In this study, different extraction procedures based on the QuEChERS method were compared for the multiresidue determination of pesticides in orange juice by ultra high performance liquid chromatography coupled to tandem mass spectrometry (UHPLC–MS/MS). After choosing preliminary conditions, an experimental design was carried out with the variables C18, PSA, NaOH and CH3COONa to optimize the sample...
With the increase of improper use of pesticides in recent years, monitoring programs for pesticide residues have become commonplace around the world. In Brazil, sweet pepper has presented the highest percentage of irregular samples over 10 years of monitoring. The aim of this study was to optimize and validate a quick and effective method for the determination of 81 pesticides in sweet pepper using...
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