欢迎访问过程工程学报, 今天是

›› 2007, Vol. 7 ›› Issue (1): 63-66.

• 反应与分离 • 上一篇    下一篇

聚苯乙烯乙酰化苯丙氨酸型树脂对Ni2+的螯合性能

沈珺,魏荣卿,刘晓宁,王燕芹   

  1. 南京工业大学制药与生命科学学院
  • 出版日期:2007-02-20 发布日期:2007-02-20

Chelating Properties of Ni2+ on Phe Resin

SHEN Jun,WEI Rong-qing,LIU Xiao-ning,WANG Yan-qin   

  1. Col. Life Sci. & Pharmaceutical Eng., Nanjing University of Technology
  • Online:2007-02-20 Published:2007-02-20

PDF

摘要： 用氯乙酰化聚苯乙烯(Chloroacetylized Polystyrene, PS-Acyl-Cl)树脂替代氯甲基树脂与苯丙氨酸(Phenylalanine, Phe)反应制备了PS-Acyl-Phe型螯合树脂，并研究了该树脂在pH、螯合时间、Ni2+浓度等不同条件下对Ni2+的螯合性能，得到了Ni2+型介质的最佳螯合条件：Ni2+溶液浓度为0.1 mol/L，pH为3.5~9.0，螯合时间5 h，此时树脂的最高螯合量为0.91 mmol/g, Phe螯合效率为40.8%.

关键词: 聚苯乙烯苯丙氨酸树脂, Ni2+, 螯合, 氯乙酰化聚苯乙烯, 苯丙氨酸树脂

Abstract: A new L-phenylalanine resin (PS-Acyl-Phe) was prepared by chloroacetylated polystyrene (PS-Acyl-Cl) instead of merrifield resin (PS-CH2-Cl) and applied for chelating Ni2+. The effects of pH, chelating time and concentration of Ni2+ on the chelating reaction were investigated for the optimal chelating condition. The results show that under the optimal conditions of Ni2+ concentration 0.1 mol/L, pH 3.5~9.0, and chelating time 1 h, the chelating rate could be up to 40.8%.

Key words: L-phenylalanine polystyrene, Ni2+, chelating, chloroacetylated polystyrene, L-phenylalanine resin