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- W2349555668 abstract "Objective To establish a new method of detecting methamidophos residues in agricultural products.Methods In this experiment,methamidophos,one of organic pesticides,was detected and analyzed by using chemical luminescence with high sensitivity in luminol-potassium ferricyanide system,and found out the best experimental conditions.The result of determination of methamidophos residues in agricultural products,was compared with the result by high-performance liquid chromatography(HPLC) for practical analysis.Results In static injection chemiluminescence method,Luminol solution of 2.4×10-4mol / L was selected with the dosage of 2.00 mL,and the dosage of testing liquid was also 2.00mL.The best working conditions of instrument that could obtain most idea luminescence curve was negative high voltage-375V,light-emitting time of 40s.And the Interfering test showed that when the permitting limit of interference at 0.05mg/L methamidophos was allowed values of ± 5 %,the ions such as Cl-、SO42-、NO3-、Ca2+,Mg2+ 、Fe3+ of 1 000 fold had no interference.The result of determination of methamidophos residues in samples by two kinds of methods had no significant differences.Conclusion The static injection chemiluminescence method simplified the testing method and shortened the determination time.The recoveries of standard addition of 92.5 %～104.3 % and R5 %(n=5).The new method should provide experimental basis for the detection of methamidophos." @default.
- W2349555668 created "2016-06-24" @default.
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- W2349555668 date "2010-01-01" @default.
- W2349555668 modified "2023-09-24" @default.
- W2349555668 title "Determination of Methamidophos Residues in Agricultural Products by Instantaneous Steady Static Injection Chemiluminescence." @default.
- W2349555668 hasPublicationYear "2010" @default.
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