微波消解-原子荧光光谱法测定白酒中的总砷  

Determination of Arsenic Content in Liquor by Microwave Digestion & Hydride Generation Atomic Fluorescence Spectrometry

作　　者：严腊梅 赵静 汪地强 

机构地区：[1]贵州茅台酒股份有限公司贵州茅台(白酒)检测实验室,贵州仁怀564501

出　　处：《酿酒科技》2009年第5期107-109,共3页Liquor-Making Science & Technology

基　　金：贵州省科学技术基金(黔科合J字[2007]2025号);贵州省高层次人才特助经费(TZJF-2007年6号)资助项目

摘　　要：采用氢化物原子荧光法测定白酒中总砷。酒样在经H2O2和HNO3微波消解除酸后,在5%HCl、20%NaBH4和氩气流速为300mL/min的优化实验条件下对不同样品砷含量进行测定。结果表明,该方法具有良好的精密度和准确度,线性关系良好,其R=0.9997,方法检出限为0.0626μg/L,精密度为1.3%。其加标回收率为86.69%～115.23%。The arsenic content in liquor was measured by hydride generation atomic fluorescence spectrometry. After H2O2 and HNO3 microwave digestion of the liquor samples, arsenic content in different liquor samples was measured under the following optimized conditions： 5 % HCl, 20 % NaBH4, and argon flow rate was at 300 mL/min. The results showed that such method had good precision and accuracy and good linear relationship （ R = 0.9997）.The detection limit of the method was 0.0626 μg / L, the relative standard deviation （RSD） was 1.3 % and the recovery was 86.69 % to 115.23 %.

关 键 词：白酒 微波消解 原子荧光光谱法 砷 

分 类 号：TS262.3[轻工技术与工程—发酵工程]