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  • 专利标题:   Modified electrode for quantitatively detecting sodium nitrite, comprises base electrode and nitrogen-doped graphene and gold-platinum bimetallic nanoparticle functionalized with pyrene tetrasulfonate, which are attached to base electrode.
  • 专利号:   CN106053562-A, CN106053562-B
  • 发明人:   ZHOU X, LI Z, AN Z, GUO Y, ZHANG K, CHEN X, ZHANG D, LU X
  • 专利权人:   UNIV NORTHWEST NORMAL
  • 国际专利分类:   G01N027/30, G01N027/48
  • 专利详细信息:   CN106053562-A 26 Oct 2016 G01N-027/30 201701 Pages: 14 Chinese
  • 申请详细信息:   CN106053562-A CN10316819 12 May 2016
  • 优先权号:   CN10316819

▎ 摘　　要

NOVELTY - A modified electrode comprises base electrode and nitrogen-doped graphene and gold-platinum bimetallic nanoparticle functionalized with pyrene tetrasulfonate, which are successively attached to the base electrode, where the base electrode is glassy carbon electrode, glass electrode, platinum electrode or gold electrode. USE - Modified electrode for quantitatively detecting sodium nitrite (claimed). ADVANTAGE - The modified electrode has linear detection range of 5x 107-1.62x 103 mol/ l for sodium nitrite linear equation is Ipa ( Angstrom )=-0.02755c (?M)-0.17451 (R2=0.9989), detection limit of 1.97x 107 mol/l and better selectivity and detection ability without interference of other ions. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following: (1) a method for preparing a modified electrode (2) a method for quantitatively detecting sodium nitrite.