![]() ![]() Frenich AG, Vidal JL, Lopez TL, Aguado SC, Salvador IM: Monitoring multi-class pesticide residues in fresh fruits and vegetables by liquid chromatography with tandem mass spectrometry.Kne?ević Z, Serdar M: Screening of fresh fruit and vegetables for pesticide residues on Croatian market. ![]() Pesticide residues were detected in cauliflower, cabbage, brinjal, green pea, broccoli, apple, grapes and banana. In overall 270 analyzed samples of vegetable and fruits only 35 samples were detected with pesticide residues in which only 9 pesticides are found above MRL value according to CODEX/FSSAI MRL values. Limit of detection ranged from 1.49-5.25 mg kg-1 and limit of quantification ranged were 4.46-15.74 mg kg-1. ![]() Validated method was found accurate (% recovery 79-104%) and precise with relative standard deviation (%RSD) of less than 15. Analysis of pesticide residues was done by using gas chromatography equipped with electron capture detector (GC-ECD) and detected pesticide was further confirmed by gas chromatography and mass spectrometry (GC-MS). Extraction and cleanup of pesticide residues was done by QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) method using ethyl acetate as a extraction solvent and different sorbents like primary and secondary amine, charcoal for dispersive solid phase cleanup of matrix component. In this context 31 pesticides were analyzed in different vegetables and fruit samples collected from different malls in Lucknow city, India. Pesticide use becomes an integral part of modern agricultural practices and may cause the threat of its presence in different food commodities. ![]()
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