| 摘要 |
PURPOSE:To permit easy measurement of a specific component in a vital sample by integrating an insulating substrate, electrode systems and a porous body on which oxidation reduction enzyme and electron receptor are deposited. CONSTITUTION:Thermosetting conductive carbon paste is printed on the insulating substrate 1 to form the electrode system consisting of a counter electrode 2, a measuring electrode 3 and a reference electrode 4. The electrode system is partially coated to form an insulating layer 5 except electrochemically acting parts 2'-4' of the respective electrodes. A holding frame 6 opened with a hole is adhered to the layer 5 and the porous body 7 is held in the hole so as to cover the electrode systems 2'-4'. A cover having an aperture is further adhered thereto to integrate the entire part. A standard glucose liquid is dropped as a sample liquid to the porous body of the glucose sensor constituted in the above-mentioned manner and pulse voltage is applied in the anode direction to the electrode 3 with the electrode 4 as a reference. The oxidation current value after the specified time is then measured. The measured current value corresponds to the concn. of the glucose which is a substrate. |
