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现代悬汞电极(HMDE)的方便使用,使人们对吸附溶出伏安分析的兴趣愈来愈大,这项技术适用于在汞表面有强烈吸附作用的各类化合物。本文所用仪器为Metrohm 646型伏安仪,三电极系统;Ag-AgCl参比电极;玻璃炭电极为辅助电极。差示脉冲振幅50mV;扫描速度10mV/S。三唑仑(Triazolam)和氯噻西泮(Clotiazepam)分别用甲醇配成2.92×10~(-3)M、3.10×10~(-3)M的贮备液;并配制pH4.7和10的各种缓冲液,包括磷酸缓冲液、醋酸盐缓冲
The ease of use of modern hanging mercury electrodes (HMDEs) has led to growing interest in the analysis of the stripping voltammograms of a wide range of compounds that are strongly adsorbed on the mercury surface. The instrument used in this paper is Metrohm 646 type voltammetry, three-electrode system; Ag-AgCl reference electrode; glassy carbon electrode as the auxiliary electrode. Differential pulse amplitude 50mV; scanning speed 10mV / S. Triazolam and Clotiazepam were separately equilibrated with methanol to prepare stock solutions of 2.92 × 10 -3 M and 3.10 × 10 -3 M. Various buffers, including phosphate buffer, acetate buffer