络合吸附示波极谱法测定钢中微量铝  

Oscillopolarographic determination of micro amounts of aluminium in steel by complex adsorptive wave

作　　者：严规有[1] 危俊婷[1] 罗集[1] 陈寒芳[1] 

机构地区：[1]中南工业大学化学化工学院,湖南长沙410083

出　　处：《冶金分析》2001年第6期37-38,共2页Metallurgical Analysis

摘　　要：在溴连苯三酚红—三乙醇胺介质中 ,Al 产生一个良好的极谱波 ,其导数峰电位为 -0 77V(vs .SCE) ,Al 浓度在6× 10 - 8～ 1 2× 10 - 6 mol/L范围内 ,二阶导数峰高与浓度呈线性关系。该法已用于测定钢中微量铝 ,获得满意的结果。In a system of bromopyrog allol red and triethanolamine,Al*# produces a sensitive complex ads orptive polarographic wave at -0.7 7V(vs.SCE).In the range of 6.0×10 - 8 -1.2×10 -6 mol/L,the second derivat ive peak height is linear with the concentration of Al*#.Th e method has been applied to the d etermination of Al*# in steel with satisfactory results.

关 键 词：铝 络合吸附示波极谱法 钢 测定 

分 类 号：TG115.334[金属学及工艺—物理冶金]