铒离子印迹硅胶吸附剂的制备及其选择性固相萃取研究

功能材料, 2010, 41(z2): 288-291.

铒离子印迹硅胶吸附剂的制备及其选择性固相萃取研究

郭佳佳 ^1, , 苏庆德 ^2, , 凌飞 ^3, , 储大勇 ^4, , 黄颖 ^5,

1.安徽省产品质量监督检验研究院,安徽,合肥,230051

2.中国科学技术大学,安徽,合肥,230025

3.安徽省产品质量监督检验研究院,安徽,合肥,230051

4.安徽省产品质量监督检验研究院,安徽,合肥,230051

5.安徽省产品质量监督检验研究院,安徽,合肥,230051

关键词：铒离子 , 离子印迹硅胶吸附剂 , 表面印迹技术 , 固相萃取

Erbium(Ⅲ)-ion imprinted silica gel sorbent:synthesis and selective solid-phase extraction

针对微量稀土元素分离和预富集中的难点,研究了新型离子印迹材料.采用表面印迹技术合成了铒离子印迹硅胶吸附剂(Er-IISG),并建立了离子印迹固相萃取-电感耦合等离子体原子发射光谱法检测铒离子系统.在竞争离子如Tb3+、Dy3+、Tm3+的存在下,Er-IISG对Er3+的选择性系数最高达390.72,约是NISG粒子的42倍.该离子印迹硅胶吸附剂对Er3+具有快速的吸附和解吸能力,其最大静态吸附容量为58.01mg/g.所建立的方法快速、简便,选择性和准确度高,可以应用于复杂样品中对铒元素的分离与分析.

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铒离子印迹硅胶吸附剂的制备及其选择性固相萃取研究

Erbium(Ⅲ)-ion imprinted silica gel sorbent:synthesis and selective solid-phase extraction

参考文献