论文部分内容阅读
研究了Ｂｉ（Ⅲ）─Ｓｃ（Ⅲ）与八种变色酸双偶氮型试剂的示波极谱行为。其中五种含多卤素取代基的不对称结构试剂与Ｂｉ（Ⅲ）－Ｓｃ（Ⅲ）生成异核络合场，用单扫示波极谱法得到灵敏的络合吸附波。测定了络合物的组成，研究了电极过程并提出了电极反应机理。用巯基棉吸附和分离，消除共存离子的干扰，建立测定痕量铋的方法，用于铜合金分析，结果满意。
The oscillopolarographic behaviors of Bi (Ⅲ) ─Sc (Ⅲ) with eight chromotropic acid disazo type reagents were studied. Among them, five asymmetric structural reagents with polyhalogen substituents formed heteronuclear complexation sites with Bi (Ⅲ) -Sc (Ⅲ), and the sensitive complex adsorption wave was obtained by single sweep oscillopolarography. The composition of the complex was measured, the electrode process was studied and the electrode reaction mechanism was proposed. With thiol cotton adsorption and separation, to eliminate the interference of coexisting ions, the establishment of a method of determination of trace bismuth for copper alloy analysis, the results are satisfactory.