摘要
在0.12moL/L乙酸铵-0.05%磺基水杨酸-0.15%乙醇,pH5.8～6.0的条件下,钍与铬天青S在-0.45W(vs SCE)有一良好的导数极谱波。钍浓度在0～0.4μg/mL范围内与波高呈直线关系。
A description has been made of a sensitive adsorptive wave of thorium in a solution of 0.12 mol/ L ammonium acetate-0.0015% Chrome Azurol S-0.05% sulphosalicylic acid-0.15% ethanol at pH 5.8～6.0. The peak potential of the adsorptive wave of thorium is-0.45v(vs. SCE) on an oscillopolarograph Model Jp-2 (or Jp-1A). The linear relationship holds between the peak height and thorium concentration over the range of 0-4.0μg/10mL. The interfering ions are separated from thorium by a chromatographic extraction column with N263-DA201 as the stationary phase. This method can be used for the determination of thorium in ores.
出处
《分析试验室》
CAS
CSCD
北大核心
1991年第1期41-42,共2页
Chinese Journal of Analysis Laboratory
关键词
矿石
极谱法
吸附波
铬天青S
钍
Chrome azurol S, Polarographic adsorptive wave, Ores, Thorium
