新银盐光度法测定铁矿石中砷的含量  

Determination of Arsenic in Iron Ore by a New Silver Salt Spectrophotometry

作　　者：姜玉梅[1] 王潇蕤[1] 

机构地区：[1]湖南化工职业技术学院,湖南株洲412004

出　　处：《当代化工》2009年第1期95-99,共5页Contemporary Chemical Industry

摘　　要：研究了将新银盐法测定砷的发生部分改用锌粒发生,再用新银盐吸收液吸收,分光光度法测定。该法消除了有机试剂,用锌粒代替硼氢化钾发生,价格便宜,灵敏度大大提高,ε达到2.6×104。In this paper, a new silver salt spectrophotometry method to determine arsenic in iron ore was studied, which used zinc to generate arsenic hydride ,then generated arsenic hydride was absorbed by an absorbing solution of new silver salt and measured by spectrophotometry. The result showed that this method dose not any more use organic reagent in reaction, and zinc which is cheaper than potassium borohydrid is used as raw materal, sensitivity of this method（ε）is greatly enhanced and reaches 2.6 × 10^4.

关 键 词：砷 铁矿石 分光光度法 新银盐法 

分 类 号：O657.3[理学—分析化学]