title: Persistence of ethion residues on cucumber, Cucumis sativus (Linn.) using gas chromatography with nitrogen phosphorus detector.
abstract: Residues of ethion were estimated in cucumber by gas liquid chromatography following three applications of the insecticide at 375 and 750 g a.i ha(-1). The average initial deposits of ethion on cucumber fruits were found to be 2.40 and 4.97 mg kg(-1) at single and double dosages, respectively. Residues of ethion dissipated below the maximum residue limit (MRL) of 0.5 mg kg(-1) in 7 days. Half-life (T1/2) for degradation of ethion on cucumber was observed to be 2.92 days at recommended dosage. A waiting period of 7 days is suggested for safe consumption of cucumber.
authors: Department of Entomology, Punjab Agricultural University Ludhiana, Pesticide Residue Analysis Laboratory, Ludhiana, Punjab 141004, India.
authors: G
authors: G
authors: Singh
authors: B
authors: B
authors: Singh
authors: R S
authors: RS
authors: Battu
authors: G
authors: G
authors: Jyot
authors: B
authors: B
authors: Singh
authors: B S
authors: BS
authors: Joia
mesh_terms: D002849:Chromatography, Gas / Q000379:methods; D018553:Cucumis sativus / Q000737:chemistry*; D005506:Food Contamination / Q000032:analysis*; D006207:Half-Life; D009584:Nitrogen / Q000032:analysis*; D009946:Organothiophosphorus Compounds / Q000032:analysis*; D010573:Pesticide Residues / Q000032:analysis*; D010758:Phosphorus / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D009946:Organothiophosphorus Compounds; D010573:Pesticide Residues; D012989:Soil Pollutants; D010758:Phosphorus; C100038:ethion; D009584:Nitrogen