摘要
在pH2.5的盐酸-邻苯二甲酸氢钾缓冲溶液中,得到锑-茜素紫配合物的单扫极谱吸附波。峰电位在-0.41V(vs.SCE),锑(Ⅱ)浓度在1.6×10^(-8)～7.4×10^(-7)mol/L间与导数峰高成正比。用拟定的方法测定样品,获得了满意结果。本文对极谱波性质、配合物组成和电极过程进行了探讨。
In a buffer solution of HCl-potassium biphthalate at pH=2.5, containing 5×10^(-6)mol/L alizarin violet, a sensitive adsorptive complex wave has been obtained by single sweep polarography. The peak potential of the wave is -0.41 V(vs.SCE). The change of the peak height for concentration of Sb(Ⅲ) is linear in the range of 1.6×10^(-8)～7.4×10^(-7) mol/L. This method has been used for the determination of Sb in anodic residue with satisfactory results. The composition of the complex and the electrode process were also discussed.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1991年第1期105-107,共3页
Chinese Journal of Analytical Chemistry
关键词
锑
茜素紫
配合物
吸附波
测定
Adsorptive ccmplex wave, Antimony, Alizarin-violet
