摘要
铟(Ⅲ)在0.05mol/L HAc-NaAc、2.5×10^(-5)mol/L PAN溶液(pH5.7)中,形成一良好的导数极谱波,峰电位Ep=-0.65V(vs.SCE),峰电流与铟的浓度在5.0×10^(-8)～2.0×10^(-6)mol/L范围内呈线性关系,检出限可达1.0×10^(-8)mol/L。用循环伏安法等电化学手段研究极谱波的性质及其机理。实验表明为络合吸附波。
In 0. 05mol/L HAc-NaAc (pH5. 7) supporting electrolyte containing 2. 5×10^(-5)mol/L PAN,a highly sensitive adsorptive complex wave of In(Ⅲ)-PAN by single-sweep polarography is observed. The peak potential of the wave is -0.65V(vs. SCE). The linear relationship holds between peak current and indium concentration ranging from 5. 0×10^(-8)～2.0×10^(-6)mol/L. The limit of detection for indium is 1.0×10^(-8)mol/L. The composition of the complex has been determined to be 1:2. The mechanism of the wave has been investigated.
出处
《分析试验室》
CAS
CSCD
北大核心
1992年第2期9-12,共4页
Chinese Journal of Analysis Laboratory
基金
国家自然科学基金
长春应化所电化学开放实验室基金
关键词
铟
PAN
络合吸附波
Indium
PAN
Adsorptive complex wave
