摘要
Ｉｎ（Ⅲ）在ｐＨ４５７ＨＡｃＮａＡｃ０．１％ＶＣ０．０６％ＨＣｕＰ溶液中，用示波计时电位法可获得良好示波图，其切口电位为Ｅ＝０９０（Ｖｓ．ＳＣＥ），切口高度与Ｉｎ（Ⅲ）浓度在８００×１０－７～１４×１０－５ｍｏｌ／Ｌ范围内成正比，检出限可达５０×１０－７ｍｏｌ／Ｌ吸附络合物组成为Ｉｎ（Ⅲ）：铜铁试剂（ＨＣｕｐ）＝１∶１。
In this paper, a system containing adsorbable complex(0.2mol/L HAc-0.4mol/L NaAc-0.1%VC-0.06%HCup-In) was studied by oscillographic chronopotentiometry. Because the complex can be adsorbed on the surface of electrode. The higher sensitivity of determination can be used in trace analysis. In the experiment, a good oscillogram is obtained. Its potential of incision is 0.9(vs,SCE). The height of incision is propoftional to concentration of indium(Ⅲ) over the range of 8.00×10 -7 ～1 4×10 -5 mol/L and the limit of detection is 5.0×10 -7 mol/L.
出处
《分析科学学报》
CAS
CSCD
1996年第2期136-138,共3页
Journal of Analytical Science
基金
国家自然科学基金
河南省科学基金
关键词
吸附络合物
示波分析
铜铁试剂
Oscillographic Analysis
Adsorbable Complex
Indium(Ⅲ)
