线性变位极谱法研究 Ⅷ.钒(Ⅴ)-5-Br-PADAP-H_2O_2的配位吸附波  

INVESTIGATIONS ON POLAROGRAPHY WITH LINEARLY CHANGING POTENTIAL Ⅷ.THE ADSORPTIVE-COMPLEX WAVE OF VANADIUM (Ⅴ)-5-Br-PADAP-HYDROGEN PEROXIDE

作　　者：王晓平[1] 周卫华[1] 张祖训[1] 

机构地区：[1]南京大学化学系

出　　处：《分析化学》1989年第1期16-19,共4页Chinese Journal of Analytical Chemistry

摘　　要：本文提出了钒(V)-5-Br-PADAP-H_2O_2三元配合物的配位吸附波。在O.60M磷酸底液中,该波的峰电位为-0.05V(vs SCE),在8.00×10^(-8)～2.00×10^(-5)M浓度范围内与峰电流呈线性关系。对极谱波的电流—电位性质进行了研究,求得了配合物的组成、表观稳定常数和离解及生成速率常数。A method has been elaborated utilizing the adsorptive-complex polarographic wave of V(V) in 5-Br-PADAP-H_2O_2-H_3PO_4 medium. The peak current is linearly related to the concentration of V in the range of 8×10^(-8)—2×10^(-5) M. The behaviour of currentpotential curve was studied and the composition, stability constant(K)and dissociation constant(kb) of the complex were determined.

关 键 词：钒三元配合物 配位吸附波 极谱法 

分 类 号：O657.122[理学—分析化学]