In(Ⅲ)-NCP体系配位吸附波研究及应用  

Polargraphic Adsorption Wave of Indium-Neocuproine Complex and Its Application

作　　者：周长利[1] 罗川南[1] 卢燕[1] 李慧芝[1] 

机构地区：[1]济南大学应化系,济南250022

出　　处：《分析科学学报》2003年第2期154-156,共3页Journal of Analytical Science

摘　　要：在 0 .1 5mol/ L HAc-Na Ac(p H3 .2 )介质中 ,In( ) -NCP(2 ,9-二甲基邻菲咯啉 )配合物在 2 .5次微分极谱图上产生良好的吸附还原波。其峰电位为 -0 .40 V,峰电流与 In( )浓度在 4.0× 1 0 - 8～ 2 .0× 1 0 - 6 mol/ L范围内呈良好的线性关系 ,检出限为 8.0× 1 0 - 9mol/ L。应用该法测定了氢氧化铝和陶瓷颜料中的微量铟 ,结果满意。研究了配合物的组成。In a buffer solution of 0.15 mol/L HAc NaAc(pH 3.2),the complex of Indium Neocuproine (NCP) was adsorbed on the surface of mercury electrode and produced a reduction peak at -0.40 V(vs. SCE).The detection limit and the linear range of the concentration of In(Ⅲ) to the single sweep 2.5th order derivative osillopolarographic peak current( I p) were 8.0×10 -9 mol/L and 4 0×10 -8 ～2 0×10 -6 mol/L, respectively. The method has been applied to the determination of trace In(Ⅲ) in aluminium hydroxide and dyestuff samples with satisfactory results.The mechanism of the eletrode process has also been studied.

关 键 词：NCP 配位吸附波 2 9-二甲基邻菲咯啉 配合物 氢氧化铝 陶瓷颜料 铟 分析 

分 类 号：O614.372[理学—无机化学] O657.14[理学—化学]