高等学校化学学报 ›› 1996, Vol. 17 ›› Issue (2): 206.

• 论文 • 上一篇    下一篇

β-环糊精交联聚合物包结5-Br-PADAP配合物富集铜和镍的研究

苏小笛, 刘六战, 沈含熙   

  1. 南开大学化学系, 天津 300071
  • 收稿日期:1995-02-15 出版日期:1996-02-24 发布日期:1996-02-24
  • 通讯作者: 沈含熙
  • 作者简介:苏小笛,女,30岁,博士研究生.
  • 基金资助:

    国家自然科学基金;国家教委博士点专项科研基金

Studies on the Adsorbing Enrichment of Copper and Nickel Using 5-Br-PADAP Inclusion Complex of β-Cyclodextrin Cross-Linking Polymer

SU Xiao-Di, LIU Liu-Zhan, SHEN Han-Xi   

  1. Department of Chemistry, Nankai University, Tianjin 300071
  • Received:1995-02-15 Online:1996-02-24 Published:1996-02-24

摘要: β-环糊精交联聚合物包结有机显色剂2-(5-溴-2-吡啶偶氮)-5-二乙氨基苯酚所形成的配合物树脂可与多种金属离子反应生成吸附配合物。本文报道了以这种包结配合物树脂吸附富集铜与镍的有关实验条件、反应机理以及用分光光度法进行测定的研究。结果表明,在pH=4~6的弱酸性介质中,包结树脂可以分别从稀溶液中定量吸附铜与镍。富集倍数达到50倍(铜)与200倍(镍).

关键词: &beta, -环糊精交联聚合物, 2-(5-溴-2-吡啶偶氮)-5-二乙氨基苯酚, 包结配合物树脂, 铜与镍的富集

Abstract: The inclusion complex of 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol with β-cyclodextrin cross-linking polymer could react with various metal ions to form adsorbing complexes.In this paper the related experiment conditions and adsorption mechanism of enriching trace copper and nickel have been investigated.The results showed that in pH 4~6 media the inclusion resin could enrich copper and nickel from dilute solutions.The multiple of enrichment were 50 and 200 for copper and nickel, respectively.

Key words: Cyclodextrin cross-linking polymer, 2-(5-Bromo-2-pyridylazo)-5-diethy-laminophenol, Inclusion complex resin, Enrichment of copper and nickel

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