高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (11): 977.

• 研究简报 • 上一篇    下一篇

Hg(Ⅱ)-meso-四(对磺基苯)卟啉-CTMAB显色反应的研究

安兴民, 梁永武, 贾殿赠, 张向东   

  1. 新疆大学化学系
  • 收稿日期:1984-06-07 出版日期:1985-11-24 发布日期:1985-11-24

Study on Color Reaction of Ternary System of Mercury-meso-Tetra (P-Sulfonatophenyl)-Porphyrin-Cetyltrimethylammonium Bromid

An Xinmin, Liang Yongwu, Jia Dianzeng, Zhang Xiangdong   

  1. Department of Chemistry, Xingjiang University, Wulumuqi
  • Received:1984-06-07 Online:1985-11-24 Published:1985-11-24

摘要: 卟啉类化合物由于有较大的共轭平面结构,显色能力很强。用水溶性卟啉作分析试剂,灵敏度较高。AdegboycAdeyemo等研究过Hg2+与meso-四(对-磺基苯)卟啉(TPPS4)在pH7—8范围内的反应,断定在pH7时形成Hg2+:(TPPS4)=2:1的线型配合物Hg2(TPPS4)。但我们观察到在pH10—12范围内,Hg2+与TPPS4形成1:1的配合物。

Abstract: Ahighly sensitive colour reaction of mercury(Ⅱ)-meso-letra (P-sulfonatophenyl) porphyrin(TPPS4)-cctyltrimethy]ammonium bremicc (CTMAB) system has been investigated spectrophotometrically. Mccury reads rapidly with THS4 and CTMABto form a yellow-green ternary complex at pH = 11 under room temperature. The apparent molar absorptivity of the complex is 2.38×105 l·mol-1 ·cm-1 at 445 nm. The molar ratio of the complex has been estimated to be Hg:(TPPS4)= 1:1.

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