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  • Title: Persistence of ethion residues on cucumber, Cucumis sativus (Linn.) using gas chromatography with nitrogen phosphorus detector.
    Author: Singh G, Singh B, Battu RS, Jyot G, Singh B, Joia BS.
    Journal: Bull Environ Contam Toxicol; 2007 Oct; 79(4):437-9. PubMed ID: 17701089.
    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.
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