镓(Ⅲ)-芦丁极谱络合吸附波的研究  

Polarographic Adsorptive Complex Wave of Gallium(Ⅲ)-Rutin

作　　者：王荣辉[1] 李南强[1] 

机构地区：[1]北京大学化学系,北京100871

出　　处：《分析化学》1994年第8期808-811,共4页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金

摘　　要：在(CH_2)_6N_4-HCl缓冲底液中,获得了Ga(Ⅲ)-芦丁的络合物吸附催化前波,检出限达1.0×10^(-3)mol/L。用其测定了以SiO_2、Al_2O_3为基体的催化剂中的镓.研究了其电极过程机理。In (CH2)6N4-HCl buffer solution at pH 5, a sensitive adsorptive complex wave of Ga(Ⅱ)-rutin (Rt) was obtained by single-sweep Polarography. The detection limit is down to 1.0×10-8mol/L. The proposed method has been applied to the determination of gallium in catalyst. The composition of the complex was detected as Ga (Ⅱ): Rt = 1 : 2. The rate constant of the surface electrochemical reaction was determined as ks=4. 0×10-2s-1.

关 键 词：镓 芦丁 络合物 极谱波 

分 类 号：O641.4[理学—物理化学]