摘要 |
To prevent an electrode improvable to measurement accuracy by using a novel self-assembled monolayer suppressing an influence of the interference substance in measuring an object to be measured, and a sensor using the same. The sensor has a modified electrode 12 and a counter electrode. The modified electrode 12 has a gold electrode 16 as an electrode base, a self-assembled monolayer 18 covering the gold electrode 16 and made of carboxyalkanethiol expressed by a chemical structural formula of HS(CH<SUB>2</SUB>)<SUB>n</SUB>COOH (n=5 to 9), and an enzyme 19 immobilized on the self-assembled monolayer 18 . When measuring fructose, FDH may be used as the enzyme 19 . The self-assembled monolayer 18 allows Co(phen)<SUB>3</SUB><SUP>2+</SUP> as a mediator to pass through selectivity when being formed of 7-carbxy-1-heptanethiol. |