• 专利标题:   Electrochemical sensor for detecting uric acid in mixed solution of ascorbic acid, uric acid and dopamine, comprises base electrode and aperture graphene.
  • 专利号:   CN106770572-A
  • 发明人:   WANG B, WANG Y, HUANG Y
  • 专利权人:   CAS GUANGZHOU CHEM CO LTD NANXIONG MATER, CHINESE ACAD SCI GUANGZHOU CHEM RES INST
  • 国际专利分类:   C01B032/184, C08F212/08, C08F220/34, G01N027/30, G01N027/327, G01N027/36, G01N027/48
  • 专利详细信息:   CN106770572-A 31 May 2017 G01N-027/327 201754 Pages: 11 Chinese
  • 申请详细信息:   CN106770572-A CN11243588 29 Dec 2016
  • 优先权号:   CN11243588

▎ 摘  要

NOVELTY - An electrochemical sensor for detecting uric acid, comprises base electrode and aperture graphene. USE - Electrochemical sensor for detecting uric acid in mixed solution of ascorbic acid, uric acid and dopamine (claimed). ADVANTAGE - The electrochemical sensor has excellent linear electrochemical response to uric acid in certain concentration range, excellent repeatability and high stability. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) production of electrochemical sensor for detecting uric acid, which involves adding styrene, initiator azobisisobutyronitrile, stabilizer methacryloyloxyethyltrimethyl ammonium chloride, methanol and water to the reaction vessel, reacting at 75 degrees C for 8 hours and drying to obtain cationic polystyrene microspheres, assembling graphene oxide and cationic polystyrene microspheres, reducing with hydroiodic acid to obtain polystyrene/graphene core-shell microspheres, immersing polystyrene/graphene core-shell microspheres in ethyl acetate to remove polystyrene microspheres to obtain open-celled graphene solution, applying open-celled graphene solution to the surface of the pretreated base electrode, and volatizing solvent; and (2) usage of electrochemical sensor for detecting uric acid in mixed solution of ascorbic acid, uric acid and dopamine.