摘要
研究了在硼砂-NaOH 介质中,锰催化高碘酸钾氧化偶氮胂Ⅲ褪色的指示反应。由此建立了一种高灵敏、高选择性测定痕量 Mn(Ⅱ)的新方法。可测0.01～1.5μg/10ml 范围的锰(Ⅱ),方法的检测限为2.86×10^(-11)g/ml。
A method for the determination of trace manganese catalyzing the decolouring reaction of arsenazo Ⅲ reduced in Na_2B_4O_7-NaOH solution by potassium periodate has been studied.The kinetic condition was presented.The method has high sensitivity and selectivity for determing trace manganese in steel samples,and the range of determination is 0.01-1.5μg Mn/10ml and the detection limit is 2.86×10^(-11)g/ml.
出处
《冶金分析》
CAS
CSCD
北大核心
1997年第2期21-22,20,共3页
Metallurgical Analysis
关键词
锰
偶氮胂Ⅲ
钢铁
催化光度法
Manganese
Catalytic kinetics spectrophotometry
Arsenazo Ⅲ
