【摘要】 前文报导了稀土—偶氮氯膦Ⅰ(CPAⅠ)极谱络合吸附波的形成条件和在植物样品测定中的应用。本文继续用循环伏安、直流极谱和库仑分析研究偶氮氯膦Ⅰ和它与镨(Ⅲ)络合物还原的电极过程,从而提出了稀土—偶氮氯膦Ⅰ极谱络合吸附波的机理。更多还原

【Abstract】 In previous paper[1], a sensitive polarographic adsorptive complex wave of rare earth elements with Chlorophosphonazo I (CPA I) was proposed, and the method has been successfully used to the determination of micro amounts of rare earth in the cucumber. In this paper, the mechanism of adsorptive complex wave was investigated by single sweep polarography, cyclic voltammetry, controlled potential coulometry and DC polarography, and it is concluded that four electrons are involved in the electrode reduction, and the amines are the final reduction products.更多还原