高等学校化学学报 ›› 1986, Vol. 7 ›› Issue (7): 597.

• 研究简报 • 上一篇    下一篇

α,β,γ,δ-四-(4-甲基苯基)卟啉与铜反应的分光光度法研究

何淑琼, 黄泽兴, 肖建洪   

  1. 华侨大学化学系
  • 收稿日期:1985-01-04 出版日期:1986-07-24 发布日期:1986-07-24

Synthesis of α, β,γ,δ Tetra (4-Methylphenyl) Porphine and Spectrophotometric Study of the Reaction Between Copper

He Shuqiong, Huang Xexin, Xiao Jianhong   

  1. Department or Chemistry, Huaqiao University , Quanhou
  • Received:1985-01-04 Online:1986-07-24 Published:1986-07-24

摘要: 目前,已见报导用非水溶性卟啉化合物测定铜的有:TPP[1.2]、TF(cooEt)P[3]。本文研究了在表面活性剂存在下,非水溶性卟啉TTP与铜络合反应的条件,试验了多种离子和盐的干扰情况。结果表明,此方法灵敏度较高(ε414=4.5×105),准确性较好,操作简便,可用于水样、铝合金和矿石中微量铜的直接测定。

Abstract: In this paper,α,β,γ,δ-tclra-(4-methylphenyl) porphinc(TTP) has been prepared by the reaction of 4-tolualdehyde with pyrrole.The complex formation reaction of TTPwith coppcr(Ⅱ) in the presence of anionic surfactant,sodium dodecyl benzene sulf'onate has been studied.The water-insoluble TTPwas found to be a highly sensitive and highly selective reagent for direct spcctropliolomclric determination of ultramicro amount of copper.The Soret band of coppcr(Ⅱ)-TTPcomplex lies at 414nm,which was well separated from that of diacid form of TTP (444).The composition of the complex is coppcr(Ⅱ) TTP=1:1.Apparent molar absorption coefficient is 4.5×105.The interference of 23 ions and 6 salts was examined and found to be mininal.This simple and rapid method has been used for the analysis of copper in water sample,ores and Al alloy with satisfactory results.

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