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2012•Chinese Journal of Spectroscopy LaboratoryRequires access

Determination of Imidacloprid Residue in Tobacco by High Performance Liquid Chromatography with Solid-Phase Extraction

Yan Liu

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Abstract

A method for the determination of imidacloprid residue in tobacco leaves by high performance liquid chromatography with solid-phase extraction with DAD detector was established. Tobacco samples were extracted with acetonitrile and cleaned up with a florisil SPE column,then separated in a gradient elution mode.The results showed that the average recoveries of imidacloprid were in the range of 87.83%—94.80%with relative standard deviation of 1.64%,and the limit of detection was 0.01μg/g.The method is sensitive and suitable for the analysis of imidacloprid residue.

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What this paper is about

A method for the determination of imidacloprid residue in tobacco leaves by high performance liquid chromatography with solid-phase extraction with DAD detector was established. Tobacco samples were extracted with acetonitrile and cleaned up with a florisil SPE column,then separated in a gradient elution mode.The results showed that the average recoveries of imidacloprid were in the range of 87.83%—94.80%with relative standard deviation of 1.64%,and the limit of detection was 0.01μg/g.The method is sensitive and suitable for the analysis of imidacloprid residue.

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Available abstract

A method for the determination of imidacloprid residue in tobacco leaves by high performance liquid chromatography with solid-phase extraction with DAD detector was established. Tobacco samples were extracted with acetonitrile and cleaned up with a florisil SPE column,then separated in a gradient elution mode.The results showed that the average recoveries of imidacloprid were in the range of 87.83%—94.80%with relative standard deviation of 1.64%,and the limit of detection was 0.01μg/g.The method is sensitive and suitable for the analysis of imidacloprid residue.

Key concepts: Imidacloprid, Residue (chemistry), Chromatography, Chemistry, Solid phase extraction, Detection limit, Elution, Acetonitrile

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