摘要
在硫酸介质及100℃水浴加热条件下,钒(Ⅴ)对过硫酸铵氧化二苯羟乙酸生成二苯甲酮这一慢反应具有强烈的催化作用,据此拟定了一个测定8.0～100ng/ml钒的催化反应-示波极谱法,并用于测定铝合金及纯铝中钒的含量。
A new sensitive catalytic reaction-oscillopolarographic method for the determination of vanadium concentration from 8.0 to 100ng/ml was described. This method is based on the oxidation of diphenylgycolic acid by (NH_4)_2S_2O_8 in sulfuric acid solution and heating in 100℃ water baths, catalysed by vanadium (V). The results of exhaustive studies of interferences are given. The method was applied to the determination of vanadium in alumium and alumium alloy samples.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1991年第1期111-114,共4页
Chinese Journal of Analytical Chemistry
关键词
钒
测定
催化反应
示波极谱法
Vanadium, Catalytic reaction, Polarography
