DETERMINATION OF PESTICIDE RESIDUES IN FRUITS LOCAL MARKET NANDED, INDIA

A study was conducted for the determination of pesticide residues in three fruits namely apple grapes and guava. Three pesticides including two organophosphates and one synthetic pyrethroid pesticides were analyzed. A total number of 36 samples of the collected from the local market of Nanded, India. The fruits samples were collected in the season basis on regular interval. The fruits were extracted by the application of a single phase extraction of 15 g of sample with acetonitrile containing 1% of acetic acid, followed by a liquid-liquid partition formed by the addition of MgSO4 and NaOAc. Cleanup of the extract was carried out with primary secondary amine (PSA) and magnesium sulphate. The quantification was done by GC-MS. The recovery varies from 75.0% to 105.0% with relative standard deviation (RSD) below 10%. However the limit of detection ranged from 0.001-1.00 mg kg-1. Some of the fruit samples showed the presence of residues with one or other group of pesticides. Three pesticides were detected from total 36 samples with the range of 0.001-0.021 mg kg-1. This method offers cheaper and safer alternative to typical multiresidue analysis methods for the fruits.