镍-脯氨酸络合物在硼砂中的示差脉冲吸附伏安法  

On the Differential Pulse Adsorption Voltammetry of Nickel (Ⅱ)-Proline Complex in Borate

作　　者：张晓丽[1] 任艺兵[1] 王丽增[1] 邓六爱 

机构地区：[1]山东大学化学系,济南250100

出　　处：《分析化学》1995年第12期1422-1424,共3页Chinese Journal of Analytical Chemistry

基　　金：山东大学青年科学基金资助课题

摘　　要：本文研究了硼砂介质中镍与脯氨酸络合物的示差脉冲吸附伏安特性.实验了仪器参数对示差脉冲吸附伏安法的影响,发现络合物峰电流与脯氨酸浓度在5.0×10^(-7)～2.0×10^(-5)mol/L范围内有线性关系,并测定了中药中脯氨酸的量.The adsorption characteristic of the complex of proline with Ni (I) in borate buffer by differential pulse technique is investigated. Experimental results show that the complex can be strongly adsorbed on the surface of HMDE. The reduction peak potential of the complex is -1. 05 V(vs. Ag/AgCl). The linear relationship between the concentration of proline and the peak current is in the range of 5. 0× 10-7-2. 0× 10-5 mol/L. This method has been used for the direct determination of proline in medical herbs.

关 键 词：脯氨酸 镍 示差脉冲 伏安法 中药 

分 类 号：O657.14[理学—分析化学]