钼-AAAQ体系吸附波的极谱法研究  

Study on Polarographic Behaviour of AAAQ System

作　　者：阮传民[1] 徐其亨[1] 王宅中[1] 

机构地区：[1]云南大学化学系

出　　处：《岩矿测试》1991年第2期111-114,共4页Rock and Mineral Analysis

摘　　要：在pH4.1-4.5的HAc-NaAc底液中,Mo(Ⅵ)与5-(4-安替比林偶氮)-8-氨基喹啉(AAAQ)形成1:1的离子缔合物。该缔合物吸附于滴汞电极上于-1.32V(υs.SCE)处产生一灵敏的极谱峰,峰电流与Mo(Ⅵ)浓度在8 ×10^(-4)-8×10^(-2)μg/ml范围内呈线性关系。研究了极谱波性质、缔合物的结构及电极反应过程和机理。应用本法测定了铜钼矿中Mo。In NaAc-HAc medium (pH 4.1-4.5), Mo (VI) -5- (4-antipyrinylazo) -8-aminoquinoline (AAAQ) ion association complex gives a sensitive cathodic second derivative wave. The peak current of the wave is linearly proportional to the concentration of molybdenum from 8 × 10-2 to 8 × 10-4??g/ml. The behavior of the polarographic wave, the structure of Mo (Ⅵ)-AAAQ and the reaction mechanism are studied. The method has been . applied to determine Mo in Copper-Molybdente.

关 键 词：钼 极谱法 8-氨基喹啉 

分 类 号：O657.14[理学—分析化学]