高等学校化学学报

高等学校化学学报 ›› 1983, Vol. 4 ›› Issue (6): 803.

• 研究简报 • 上一篇    下一篇

meso-四-(3-N-甲基吡啶)卟啉与钴反应的分光光度研究

童沈阳, 赵凤林, 李重凯   

  1. 北京大学化学系
  • 收稿日期:1982-06-09 出版日期:1983-12-24 发布日期:1983-12-24

SPECTROPHOTOMETRIC STUDY OF THE REACTION OF meso-TETRA- (3-N-METHYLPYRIDYL) PORPHYRIN WITH COBALT

Tong Shenyang, Zhao Fenglin, Li Chongkai   

  1. Department of Chemistry, Peking University, Beijing
  • Received:1982-06-09 Online:1983-12-24 Published:1983-12-24

PDF (PC)

摘要： 水溶性卟啉衍生物作为光度试剂在分析化学中已得到广泛的应用。在测定某些过渡金属元素时具有极高的灵敏度(ε值为2—5×105)[1]。meso-四-(3-N-甲基吡啶)卟啉[T(3-MPy)P]与铜[2]、锌[3]、铅[4]的反应都已进行研究。本文对T(3-MPy)P与钴的反应进行了初步的研究。T(3-MPy)P的结构如右图。

Abstract: A sensitive method for the determination of cobalt with T(3-MPy)P has been developed. Cobalt reacts rapidly with T(3-MPy)P to form a 1:1 complex at pH 10.2, the T(3-MPy)P remaining is converted into its lead complex by adding a small excess of lead at this pH after the cobalt complex has been formed. Apparent molar absorption coefficient of cobalt complex is 1.31×105.

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