Biosensor, and biosensor measuring device and method

摘要

A biosensor and a biosensor measuring apparatus whose performance can be easily determined by an ordinary user are provided. A biosensor 100 includes a substrate 1 having a quality deciding section 13 and a sample receiving section 15 provided on the substrate 1 to which a sample is supplied. The quality deciding section 13 includes a moisture absorbing material changed in color through absorption of moisture. The sample receiving section 15 has a reagent section 7 including an enzyme reacted with a test substance as a substrate. The quality deciding section 13 includes a recess 17 formed in the substrate 1 , the moisture absorbing material 16 disposed in the recess 17 and a film 18 with no air permeability substantially covering the opening of the recess 17 and closely adhered to the moisture absorbing material 16 . Cobalt salt is used as the moisture absorbing material 16.