氢化物发生—原子吸收法测定人发中砷  

Determination of Arsenic in Human Hair with Atomic Absorption Gaseous Hydride

作　　者：张彤 陈小芒[2] 李绍南[2] 

机构地区：[1]江苏省姜堰市环境监测站 [2]苏州市环境监测中心站

出　　处：《环境监测管理与技术》1997年第5期31-33,共3页The Administration and Technique of Environmental Monitoring

摘　　要：应用自制氢化物发生装置和电加热石英管原子吸收仪测定人发中砷。用硝酸—高氯酸进行消解，加入碘化钾溶液、抗坏血酸－硫脲混合液，消除了各种元素的干扰。方法简便快速，灵敏度高。发样砷的方法检测限为０．０３ｍｇ／ｋｇ，相对标准偏差在２．５％以内。This paper introduced a method using self-made gaseous hydride instrument and electric heating crystal tube atomic absorption instrument to measure Arsenic in human hair. The hair samples were digested by Nitric acid-perchloric acid system and added potassium iodide, ascorbic acid and thiourea mixture solution to eliminate co-elements interference. The method is simple, high sensitive and fast. The detecting limitation is 0.03 mg/kg and standard deviation is at 2.5%

关 键 词：人发 砷 原子吸收法 测定 

分 类 号：X838.02[环境科学与工程—环境工程]