| 摘要 |
PROBLEM TO BE SOLVED: To make an electrochemical detector for liquid chromatography usable even in an organic solvent, by suppressing adsorption of impurities on a surface of an operation electrode and sufficiently protecting an electrode main body at a reference electrode. SOLUTION: In an electrochemical detector for liquid chromatography comprising a three-electrode potentiostat of a reference electrode 2, an operation electrode 3 and an opposite electrode 4, the reference electrode 2 constituting the three-electrode potentiostat has two cylindrical bodies, i.e., an inner cylinder 16 protecting and storing an electrode main body 11 and an outer cylinder 20. The inner cylinder 16 stores the electrode main body 11 together with an electrolyte, and the outer cylinder 20 stores the inner cylinder 16 together with an electrolyte. Therefore, the electrode main body 11 is protected double in a double structure by two electrolyte layers and cylindrical bodies. The operation electrode 3 is constituted so that it can change a potential periodically according to a program function of an electronic circuit 10 of an apparatus connected thereto. |
