钪-胭脂红酸非电活性络合物的极谱研究  

POLAROGRAPHIC STUDIY ON THE NON-ELECTROACTIVE COMPLEX OF SCANDIUM-CARMINIC ACID

作　　者：李南强[1] 闵静[1] 

机构地区：[1]北京大学化学系

出　　处：《分析化学》1989年第4期346-348,共3页Chinese Journal of Analytical Chemistry

摘　　要：在pH4.4的醋酸盐缓冲溶液中,加入Sc(Ⅲ)引起胭脂红酸的单扫极谱可逆吸附波的峰高降低。Cs_c由1.0×10^(-7)至6.0×10^(-6)mol/L与峰高降低成正比。测得吸附络合物组成为Sc(Ⅲ):CA=1∶3。In the acetate buffer solution at pH 4.4, when Sc (Ⅲ) is added, the single-sweep polarographic peak height of reversible adsorptive wave of carminic acid (CA) decreases. The decrease of the peak height is directly proportional to C_(sc) from 1.0×10^(-7) to 6.0×10^(-6) mol/L. The composition (Sc(Ⅲ)/CA) of the adsorptive complex has been determined to be 1:3

关 键 词：钪 胭脂红酸 极谱 络合物 

分 类 号：O614.321[理学—无机化学]