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2013•Academic Periodical of Farm Products ProcessingRequires access

Speciation Analysis of Arsenic and Determination of Abio-arsenic in Food

Chen Shao-bo, Wenjing Yu, Zhao Yu-lan

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Abstract

In order to establish an effective extract and assay method of HPLC-HGAFS,the efficiency of different extracts is compared.At the same time,rate of recovery and the transformation of the form of Arsenic are researched.A new method to detect the form of arsenic and the inorganic arsenic in food is established:after extracted by 0.15 mol/L HNO_3,samples are oxidated by hydrogen peroxide,and results are obtained with isocratic determination.The minimum detectable concentration of the inorganic arsenic is 0.05 mg/kg.In addition,the rate of extraction of arsenic in food is more than 90.0%using this method,and the vast majority is more than 95.0%;the labeled recovery of various samples is in range of 95.0%～105.0%.

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What this paper is about

In order to establish an effective extract and assay method of HPLC-HGAFS,the efficiency of different extracts is compared.At the same time,rate of recovery and the transformation of the form of Arsenic are researched.A new method to detect the form of arsenic and the inorganic arsenic in food is established:after extracted by 0.15 mol/L HNO_3,samples are oxidated by hydrogen peroxide,and results are obtained with isocratic determination.The minimum detectable concentration of the inorganic arsenic is 0.05 mg/kg.In addition,the rate of extraction of arsenic in food is more than 90.0%using this method,and the vast majority is more than 95.0%;the labeled recovery of various samples is in range of 95.0%～105.0%.

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Available abstract

In order to establish an effective extract and assay method of HPLC-HGAFS,the efficiency of different extracts is compared.At the same time,rate of recovery and the transformation of the form of Arsenic are researched.A new method to detect the form of arsenic and the inorganic arsenic in food is established:after extracted by 0.15 mol/L HNO_3,samples are oxidated by hydrogen peroxide,and results are obtained with isocratic determination.The minimum detectable concentration of the inorganic arsenic is 0.05 mg/kg.In addition,the rate of extraction of arsenic in food is more than 90.0%using this method,and the vast majority is more than 95.0%;the labeled recovery of various samples is in range of 95.0%～105.0%.

Key concepts: Arsenic, Genetic algorithm, Inorganic arsenic, Chemistry, Hydrogen peroxide, Extraction (chemistry), Environmental chemistry, Recovery rate

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