| 摘要 |
There is disposed a conductive substrate (2) which is connected to a lead (5) at one of the ends of a thin insulating pipe (1), is inscribed with the thin pipe (1) and has a sectional area of up to 10<-5> cm<2>, and a coating film (7) is disposed at the other open end of the thin pipe (1) by electrolytic polymerization, thereby forming a film-coated sensor. In the resulting film-coated sensor, the surface is uniform and film formation can be controlled easily. Since the sensor is hardly susceptible to fluidization of a sample liquid, drift is small and response is high. Since the sensor is very small, it can be used for the measurement of a minute sample or can be directly inserted into a living body or into a tissue for measurement. When covered with immobilized enzyme, the film-coated sensor can be used as an oxygen sensor. |
