摘要
对Ｉｎ（Ⅲ）－桑色素（ｍｏｒｉｎ）配合物在悬汞电极上的吸附伏安特性作了研究，确定了电极过程。在ＣｌＣＨ２ＣＯＯＨ底液中，有桑色素存在下，用１．５次微分吸附伏安法测定铟，线性范围和检测下限分别为３．５×１０－１０～１．５×１０－７ｍｏｌ／Ｌ和５×１０－１１ｍｏｌ／Ｌ。用此法测定了氢氧化铝、银粉和铅粉样品中的痕量铟，结果满意。
A sensitive voltammetric determination of trace indium is described based on the adsorptive characteristics of indium(Ⅲ) complexed with 2′,3,4′,5,7pentahydroxyflavone(morin)at a hanging mercurydrop electrode(HMDE).The experimental results show that the detection limit and the linear range of 1.5th order derivative linear sweep voltammetry in ClCH 2COOH NaOHmorin system are 5.0×10 -11 mol/L and 3.5×10 -10 ～1.5×10 -7 mol/L respectively.The method is applied to the determination of indium in aluminium hydroxide,silver and lead powder samples.The electrochemical behaviour of the indium complex at the HMDE is also investigated.
出处
《山东建材学院学报》
1998年第3期217-219,共3页
Journal of Shandong Institute of Building Materials
