流动体系高性能电流检测器的改进

Improvement of A High Performance Amperometric Detector for Flow Through System

采用在工作电极（ＷＥ）及辅助电极（ＣＥ）室衬垫尼龙网布的方法改进了本教研室提 出的 ＷＥ与ＣＥ正对面放置型的电流检测［１］。在进样 １００ μＬ样品（Ｂｒ－），流速２ ｍＬ／ｍｉｎ，检 测器电解效率达１８．９％，浓度电流线性范围为１０－２～１０－８ｍｏｌ／Ｌ，重复进样相对标准偏差小 于１％。

Using a method of padding the working electrode(WE) chamber and complementary electrode (CE) chamber with nylon nets, we improved the face-to-face WE/CE type amperometric detector previously developed in our teaching and research section. An injection of a 100 μL Br- sample at a flow rate of 2 mL/min brings about an electrolytic efficiency of 18. 9%, a RSD of less than 1 % and a linearity of 10-2~ 10-8 mol/L.