›› 2007, Vol. 7 ›› Issue (1): 63-66.
• 反应与分离 • Previous Articles Next Articles
SHEN Jun,WEI Rong-qing,LIU Xiao-ning,WANG Yan-qin
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沈珺,魏荣卿,刘晓宁,王燕芹
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
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
SHEN Jun;WEI Rong-qing;LIU Xiao-ning;WANG Yan-qin. Chelating Properties of Ni2+ on Phe Resin[J]. , 2007, 7(1): 63-66.
沈珺;魏荣卿;刘晓宁;王燕芹. 聚苯乙烯乙酰化苯丙氨酸型树脂对Ni2+的螯合性能[J]. , 2007, 7(1): 63-66.
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