反射式薄层可见光谱电解池的制作与性能测试  

Manufacture and quality test of for a thin-layer electrolytic cell for reflective visible spectra

作　　者：赵凯元[1] 王敔清[1] 易文倩[1] 邢怡[1] 

机构地区：[1]苏州科技学院化学化工系,苏州215009

出　　处：《分析试验室》2004年第11期66-69,共4页Chinese Journal of Analysis Laboratory

摘　　要：设计制作了一种反射式薄层可见光谱电解池。该电解池采用光亮铂片作为工作电极,将铂丝辅助电极和Ag AgCl参比电极组装在一起。薄层池中间的溶液薄层是通过光亮铂片和覆盖其上的玻璃片之间的塑料薄膜垫圈加以控制,当液层厚度为0.2mm时,液层容积为16μL。由于采用双平行反射的光路,使入射光与出射光保持在一直线上,可以在不变更光路系统下的各种光度计上使用。在K3Fe(CN)6 K4Fe(CN)6体系中,用循环伏安法、恒电位现场光度法进行性能测试。实验结果表明,该电池具有良好的薄层光谱电化学性能,可用于薄层可见光谱电化学研究。A thin-layer electrolytic cell for reflective visible spectra is designed and made. A bright Pt-flake (as the workimg electrode), a Pt-wire (as the auxiliary electrode) and a Ag/AgCl electrode (as the reference electrode) are assembled in this cell. The thin-layer of solution is controlled by plastics backing ring between the bright Pt-flake and the glass-flake. Its volume approximated 16 μL when its thickness was 0.2 mm. Becouse of using parellel reflective path, the incident light and the exit light are kept in a line. It is applicable to various visible spectrophotometers without the change of its light path. Its quelity in the system of K_3Fe(CN)_6/K_4Fe(CN)_6 is tested by cyclic voltammetry and in-situ potentiostatic spectrophotometry. Experimental results show that this cell has good thin-layer spectroelectrochemistry performence, and is able be used for research of thin-layer visible specttrelectrochemistry.

关 键 词：光谱电化学 薄层电解池 反射 循环伏安法 现场光度法 

分 类 号：O657.31[理学—分析化学]