摘要
本文系用吡咯啶二硫代氨基甲酸铵(APDC)在0.3mol/L硝酸介质中共沉淀、石墨炉原子吸收法测定了高纯氧化镧、氧化钇中微量钴和镍、对于钴和镍的相对标准偏差分别为1.9～3.0％和3.9～4.1％;回收率分别为100～103％和95～100％;检出限分别为9.6×10^-(10)g和9.9×10^-(10)g。
The trace amounts of Co, Ni in high purity La_2O_3 and Y_2O_3 arc coprecipitated with ammonium pyrrolidine dithiocarbamate from 0.3 mol/L HNO_3 solution, the precipitated Co and Ni are determined by graphite furnace atomic absorption spectrometry. Relative standard deviation is 1.9～3.0% for Co and 3.9～4.1% for Ni, recovery is 100～103% for Co, and 95～100% for Ni, the detection limit is 9.6×10^-(1O)g for Co and 9.9×10^(-10)g for Ni, respectively.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1991年第9期1043-1046,共4页
Chinese Journal of Analytical Chemistry
关键词
氧化镧
氧化钇
钴
镍
测定
Graphite furnace atomic absorption spectrometry
Cobalt
Nickel
Lanthanum oxide
Yttrium oxide
Organic coprocipitation
