Title:
CURRENT MEASURING ELECTRODE AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JP3513260
Kind Code:
B2
Abstract:
PURPOSE: To constitute easily and inexpensively an electrode which is high in reliability and reproducibility and is effectively actuated, by cleaning an acting electrode formed by applying electrode carbon ink to a substrate with gaseous plasma, and thereafter, depositing a reagent layer on the electrode.
CONSTITUTION: In a plurality of current measuring electrodes 12 mounted on a sensor card 10, for example, electrode carbon ink is screen-printed on a polymer substrate 18, followed by thermal drying, thereby forming an acting electrode 16. Subsequently, the substrate 18 is put into a gaseous plasma cleaner using oxygen or nitrogen, where gaseous plasma is excited based on a high frequency signal for a short exposure time of about 10-30 seconds, thus cleaning the electrode, on which a reagent layer 20 is deposited. The substrate 18 is made of a thermoplastic material, having sufficient physical properties and an electric insulating characteristic, e.g. polycarbonate or polystyrene. Furthermore, the electric carbon ink may include 18% of graphite and 6% of carbon black.
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Inventors:
Johnson, Larry D.
Murray, Alison J.
Musho, Matthew K.
Murray, Alison J.
Musho, Matthew K.
Application Number:
JP11449995A
Publication Date:
March 31, 2004
Filing Date:
May 12, 1995
Export Citation:
Assignee:
BAYER CORP
International Classes:
G01N27/30; G01N27/327; (IPC1-7): G01N27/30; G01N27/327
Attorney, Agent or Firm:
津国 肇 （外１名）