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  • Title: Determination and dynamics of ethylicin residues in cotton-field ecosystem.
    Author: Chen Z, Zhang H, Ding R, Wang W, Wang W, Li H.
    Journal: Bull Environ Contam Toxicol; 2012 Oct; 89(4):853-6. PubMed ID: 22864591.
    Abstract:
    In this work, we developed an efficient method to determine the ethylicin content in soil, cotton plant and cotton seed, and we also studied the fate of ethylicin in the cotton field ecosystem. The residual ethylicin was analyzed by GC-ECD. The limit of quantification was 0.005 mg/kg for soil, 0.01 mg/kg for the plant and cotton seed. The kinetics study of ethylicin residue showed that the ethylicin concentration in plant and soil can be regressively quantified as C = 1.0762e(-0.2529t) and C = 0.5535e(-0.1333t), representing a half-live of 2.7 and 5.2 days, respectively. As a conclusion, a dosage of 354 g a.i. ha(-1) was recommended, which could be considered as safe to human beings and animals.
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