植物药材中砷的氢化物原子吸收光谱法  

Determination of arsenic in Chinese herbs by hydride generation atomic absorption spectrometry

作　　者：李筱薇[1] 高俊全[1] 赵京玲[1] 

机构地区：[1]中国预防医学科学院营养与食品卫生研究所,北京100050

出　　处：《卫生研究》2001年第5期308-309,312,共3页Journal of Hygiene Research

基　　金："九五"国家重点科技攻关项目

摘　　要：采用氢化物发生原子吸收分光光度法测定植物药材中砷的含量 ,方法检出限为 0 0 2 0mg kg ,8种植物药材样品加标回收率为 81 5 %～ 12 5 % ,相对标准偏差 (RSD)为 6 2 %～ 18 4% ;同时测定标准参考物质GBW0 85 0 1桃叶的含量相当于其保证值的 82 4%～ 114 7% ,RSD为 12 6 %。氢化物发生原子吸收光谱法对于日常样品中砷的检测工作不失为一种简便、快速、灵敏和经济的方法。为我国制定监测砷的标准方法提供参考 ,该方法同样适用于食物样品中砷的检测。Arsenic in Chinese herbs was determined by Hydride Generation Atomic Absorption Spectrometry (HGAAS). The method was simple and fast, and could be applied to great amount of samples. The detection limit of arsenic was 0 020 mg/kg (dry weight). The recovery and relative standard deviation (RSD) of all samples were 81 5%—125% and 6 2—18 4% respectively. The determined arsenic content of GBW08501 SRM was 82 4%—114 7% of the certified value, and the RSD was 12 6%.

关 键 词：氢化物发生装置 原子吸收分光光度法 植物药材 砷 测定 

分 类 号：R284.1[医药卫生—中药学] R282.71[医药卫生—中医学]