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- W2353652306 abstract "[Objective] The research aimed to develop the rapid detection technology of organophosphorus pesticides residue in fresh vegetables.[Method] A rapid detection technology of organophosphorus pesticide residue in fresh vegetables was developed according to the principle of organophosphorus pesticides inhibiting the cholinesterase activities and quantified by the color change of complex indicator and the △pH of reaction solution.The optimum reaction conditions were determined by the single factor experiment and orthogonal test.[Result] The ratio of complex indicator was as follows: the sodium salt of bromthymol blue∶litmus indicator=2∶3.The addition of horse serum had highest effect on △pH,followed by the concn.of acetylcholine,and the temperature had lowest effect on △pH. The optimum reaction conditions were as follows: 0.8 ml horse serum,1.0% acetylchdinesterase and the temperature of 33 ℃.Under these conditions,the lowest detection limit of dichlorvos,phoxim,dipterex was 0.06,1.00 and 0.50 mg/kg,resp.[Conclusion] The detection technology of pesticides residue was convenient and rapid,and it had extensive application value on the rapid detection of organophosphorus pesticides residue." @default.
- W2353652306 created "2016-06-24" @default.
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- W2353652306 date "2008-01-01" @default.
- W2353652306 modified "2023-09-24" @default.
- W2353652306 title "Study on Rapid Detection Technology of Organophosphorus Pesticide Residue in Fresh Vegetables" @default.
- W2353652306 hasPublicationYear "2008" @default.
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