摘要
本文将流动注射-氢化物-ICP/AES 技术应用于矿石中痕量砷、锑、铋的测定。结果表明,本法具有分析速度快(60样/小时),灵敏度高(As、Sb、Bi 的测定下限达μg/g 级),精度好及操作简便等优点。
A method for the determination of As,Sb and Bi is proposed by using ICP-AES, flow injection analysis(FIA)and hydride generation.Sample are dissolved in aqua regia, and passed through sampling system of FIA with 10% KI-5% ascorbic acid-5% thiourea solutim as interfrence-free agent.Having continueonsly sampled with constant time and volume,their hydrides have been separated by gas-separator into ICP-AES,and determined The detection limit of As,Sb and Bi was 0.2,0.2 and 0.1μ/g,the range of determination was 0.2～1000μg As/g,0.20～300μg Sb/g and 0.1～300μg Bi/g,respectively,and the analy- sis rate is 60 sample/h.The method was fast and sensitive.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1991年第11期1285-1287,共3页
Chinese Journal of Analytical Chemistry
关键词
砷
锑
铋
ICP-AES
矿石
测定
Flow injection analysis
Inductively coupled plasma
Hydride
Arsenic
Antimony
Bismuth
