Patent ID: 7341846

Claim:
A glucose level measuring method using glucose dehydrogenase for measuring a glucose level by utilizing a reaction system containing glucose, an enzyme and an electron carrier, wherein the enzyme is glucose dehydrogenase to which cytochrome C is attached and which is separate from the electron carrier; and wherein the electron carrier is a Ru compound represented by a chemical formula as follows: Ru(NH 3 ) 5 X] n+ where X represents NH 3 , halogen ion, CN, pyridine, nicotinamide or H 2 O, and n+ represents a valency of the Ru complex, which is determined by the kind of X, the method comprising: allowing the cytochrome C attached glucose dehydrogenase to oxidize the glucose while reducing the Ru compound; applying a voltage to the reaction system for the Ru compound to release electrons; and detecting the electrons released by the Ru compound as a response current.