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2012•Chinese Journal of Analysis LaboratoryRequires access

Determination of imidacloprid,acetamiprid,carbendazim and thiophanate-methyl residues in tobacco by high performance liquid chromatography

Hongcheng Liu

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Abstract

A method for the determination of imidacloprid,acetamiprid,carbendazim and thiophanate-methyl residues in tobacco by high performance liquid chromatography with DAD detector was established.Tobacco samples were extracted with acetonitrile and cleaned up with a PSA SPE column,then separated in a gradient elution mode.The results showed that the average recoveries of 4 pesticides were in the range of 82.0%～112.4% and the relative standard deviations were 2.0%～5.3%.The method is simple,accurate,reproducible and has good cleanup effect.

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What this paper is about

A method for the determination of imidacloprid,acetamiprid,carbendazim and thiophanate-methyl residues in tobacco by high performance liquid chromatography with DAD detector was established.Tobacco samples were extracted with acetonitrile and cleaned up with a PSA SPE column,then separated in a gradient elution mode.The results showed that the average recoveries of 4 pesticides were in the range of 82.0%～112.4% and the relative standard deviations were 2.0%～5.3%.The method is simple,accurate,reproducible and has good cleanup effect.

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Available abstract

A method for the determination of imidacloprid,acetamiprid,carbendazim and thiophanate-methyl residues in tobacco by high performance liquid chromatography with DAD detector was established.Tobacco samples were extracted with acetonitrile and cleaned up with a PSA SPE column,then separated in a gradient elution mode.The results showed that the average recoveries of 4 pesticides were in the range of 82.0%～112.4% and the relative standard deviations were 2.0%～5.3%.The method is simple,accurate,reproducible and has good cleanup effect.

Key concepts: Chemistry, Acetamiprid, Chromatography, Carbendazim, Imidacloprid, Detection limit, Acetonitrile, High-performance liquid chromatography

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