摘要
本文报道建立了Bi(Ⅲ)-XO体系在单扫示波极谱仪上测定微量铋的方法。以0.13mol/lHAc-0.13mol/lNaAc为支持电解质,该体系有一灵敏导数极谱波,峰电位为-0.25 V(vs.SCE)。峰电流与铋的浓度在5.0×10^(-8)～1.5×10^(-6)mol/l范围内成正比。确证了该极谱波属于络合吸附波。
A sensitive irreuersible reduction wave of Bi-XO complex was found in the supporting ele-ctrolyte containg 0. 13 mol/L HAc-0. 13 mol/L NaAc. The peak potential in -0. 25 V(vs. SCE).The Linear relationship between the wave height and the concentration of bismuth hold in therange of 5.0×10^(-?)～1. 5×10^(-?)mol/L. It is confirmed that the peak wave is the adsorptive-complex wave of Bi--XO.
基金
国家自然科学基金
关键词
铋
测定
二甲酚橙
络合吸附波
Bismuth
xylenolorange
adsorptive-complex wave
