▎ 摘 要
NOVELTY - A composite electrochemical biosensor comprises graphene oxide and carboxymethylcellulose. USE - Composite electrochemical biosensor for detecting vitamin B6 (claimed). ADVANTAGE - The biosensor has good market prospects and industrial production value. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a method for preparing composite electrochemical biosensor (2) use of composite electrochemical biosensor for detecting vitamin B6.