Title: Residue Determination and Dynamic Research of Prochloraz and It′s Metabolite in Orange
Abstract: A GC-ECD method was developed for determination of prochloraz residue and it's metabolite in orange.The residues were extracted from orange with acetone,then reacted with pyridine hydrochloride at high temperature,and cleaned up by sulfuric acid acidize diatomite.The product,2,4,6-trichlorophen,was detected by GC-ECD.The average spiked recoveries were in the range of 92%-97%with their relative standard deviations of 1.4%-5.2%.The results showed that prochloraz in stored orange was stable.The fruit was dipped in a dose of 675 mg/L prochloraz for 1 minute,and after stored for 0-90 days,the residues amounts in whole orange were obtained to be in the range of 1.29-4.02 mg/kg.Dipped by the formulation of 450 mg/L recommended,the residues amounts in whole orange ranged from 1.03 to 2.44 mg/kg.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 4
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