一种高性能流动体系电流检测器

A High-Performance Amperometric Detector for Flow-through Systems

A high performance amperometric detector for flow-through systems is presented. The detector takes the structure of thin layer cell with working electrode(WE), opposite auxiliary electrode(AE) and the reference electrode(RE) at the downstream of WE. A piece of ion-exchange membrane is used to keep WE from the effect of AE products. This amperometric detector not only maintains the advantages of conventional detectors, but also overcomes their drawbacks. The main characteristics are as follows: iden ical potential at different position of WE; uniform current distribution of WE surface; low ohmic potential drop; high utilization of WE area; no influence from AE; high sensitivity; good current linearity for broad range of concentration.