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Method for the Analysis of Imidacoloprid Residue in Wheat Straw

Sun Shu-jun

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Abstract

Imidacloprid residue in wheat straw was extracted with methanol in an ultrasonic bath and purified through a florisil column,detected by HPLC at 270 nm.The average recovery rate and coefficients of variation were 83.42%～96.47% and 2.95%～4.04% respectively,the detecion limits of imidacloprid was 0.001 5 mg·kg-1.These results showed that the accuracy,precision and sensitivity of the method accord with the demands of residue analysis of pesticide.

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Imidacloprid residue in wheat straw was extracted with methanol in an ultrasonic bath and purified through a florisil column,detected by HPLC at 270 nm.The average recovery rate and coefficients of variation were 83.42%～96.47% and 2.95%～4.04% respectively,the detecion limits of imidacloprid was 0.001 5 mg·kg-1.These results showed that the accuracy,precision and sensitivity of the method accord with the demands of residue analysis of pesticide.

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Available abstract

Imidacloprid residue in wheat straw was extracted with methanol in an ultrasonic bath and purified through a florisil column,detected by HPLC at 270 nm.The average recovery rate and coefficients of variation were 83.42%～96.47% and 2.95%～4.04% respectively,the detecion limits of imidacloprid was 0.001 5 mg·kg-1.These results showed that the accuracy,precision and sensitivity of the method accord with the demands of residue analysis of pesticide.

Key concepts: Imidacloprid, Residue (chemistry), Straw, Pesticide residue, Chemistry, Chromatography, Methanol, Pesticide

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