铋(Ⅲ)-8-羟基喹哪啶体系的极谱行为——表面活性剂增敏机理和分析应用——Ⅲ.十二烷基苯磺酸钠对铋(Ⅲ)-、铅(Ⅱ)-8-羟基喹哪啶,铜(Ⅱ)-、镉(Ⅱ)-、锌(Ⅱ)-乙二胺体系电流增敏机理对比和规律  

Polarographic Behaviour of Bismuth(Ⅲ)-8-Hydroxyquinaldine——The Enhancement Mechanism and Analytical Application of Surfactants——Ⅲ. The Contrast and Regularity of Enhancement of Sodium Dodeeyl Benzene Sulfonate in Bismuth(Ⅲ)-, Lead(Ⅱ)-8-Hyd

作　　者：张月霞[1] 蒲宇宏 

机构地区：[1]冶金部钢铁研究总院,北京100081 [2]中国科学院长春应用化学研究所电分析化学开放研究实验室

出　　处：《分析化学》1992年第9期1078-1082,共5页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金

摘　　要：研究并比较了十二烷基苯磺酸钠(SDBS)对Bi(Ⅱ)-、Pb(Ⅰ)-8-羟基喹哪啶,Cu(Ⅰ)-、Cd(Ⅰ)-、Zn(Ⅰ)-乙二胺体系示波极谱电流的增敏效果,和对峰电位的影响及有关试验。表明SDBS只对能形成螯合阳离子者起增敏作用,其增敏程度则受SDBS在电极表面与相应螯合阳离子是形式缔合物,还是因超载静电吸引产生诱导吸附作用所制约。前者最佳可增敏达60余倍,后者最佳可增敏10余倍。The investigation and the comparison of the enhancement effect of sodium dodecyl benzene sulfonate (SDBS) on the oscillopolarogaphie current of bismuth(Ⅲ)-, lead(Ⅱ)-8-hydroxyquinaldine(8-OXQ) systems, and copper(Ⅱ)-, cadmium(Ⅱ)-, zinc(Ⅱ)-ethylene-diamine(En) system, also the influence of it on the peak potentials and other corresponding experiments have been described in this paper. The results demonstrated that the enhancement of SDBS would appear only in the case of forming chelate cations and the enhancement degree of SDBS probably depended on that, whether SDBS with corresponding chelate cation formed an associate compound on the electrode surface, or the species of its cation were induced only by DBS^- adsorbed on the electrode surface abundantly. For optimal examples: the oscillopolarographic current of Cu(Ⅱ)-En system (the former) and that of Bi(Ⅲ)-8-OXQ system(the latter) by adding SDBS would be increased about more than 60 times and 10 times, respectively.

关 键 词：表面活性剂 增敏机理 示波极谱 

分 类 号：O657.14[理学—分析化学]