摘要
本文对铟（Ⅲ）与茜素红络合物在悬汞电极上的吸附伏安法作了研究，确定了电极过程．在HAc－NaAc（PH4．92）缓冲溶液中有菌素红存在下，用1．5阶微分吸附伏安法测定铟，其线性范围是1×10－10～8×10－8mol／L，检测限5×10－11mol／L，用此法测定了化探样中痕量铟，结果良好。
A sensitive voltammetric determination of trace indium is described, based on the adsorption characteristics of indium (Ⅲ) with alizarin red at a hanging mercury-drop elec trode(HMDE). The experimental results show that the detection limit and the linear range of 1. 5th order differential linear sweep voltammetry in HAc-NaAc-alizarin red system are 5 ×10-11 adn 1×10-10~8× 10-8 mol/L , respectively. The method has been applied to the de termination of indium in geological samples. The electrochemical behaviour of the indium complex at the HMDE was also investigated.
出处
《分析化学》
SCIE
EI
CAS
CSCD
北大核心
1996年第1期101-103,共3页
Chinese Journal of Analytical Chemistry
关键词
伏安法
铟
茜素红
化探样
Adsorptive voltammetry
indium
alizarin red
