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Selective preconcentration of trace thorium from aqueous solutions with Th(IV)-imprinted polymers prepared by a surface-grafted technique

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成果类型:
期刊论文
作者:
Lin, Canrong;Wang, Hongqing*;Wang, Yuyuan;Zhou, Li;Liang, Jun
通讯作者:
Wang, Hongqing
作者机构:
[Wang, Hongqing; Lin, Canrong; Wang, Yuyuan; Liang, Jun] Univ S China, Sch Chem & Chem Engn, Hengyang 421001, Hunan, Peoples R China.
[Zhou, Li] Univ S China, Sch Math & Phys, Hengyang 421001, Hunan, Peoples R China.
[Wang, Hongqing] Univ S China, Sch Chem & Chem Engn, 28 Changsheng W Rd Hengyang, Hengyang 421001, Hunan, Peoples R China.
通讯机构:
[Wang, Hongqing] U
Univ S China, Sch Chem & Chem Engn, 28 Changsheng W Rd Hengyang, Hengyang 421001, Hunan, Peoples R China.
语种:
英文
关键词:
Ion-imprinted polymers;Silica grafting;Solid phase extraction (SPE);Spectrophotometric determination;Thorium(IV)
期刊:
International Journal of Environmental Analytical Chemistry
ISSN:
0306-7319
年:
2011
卷:
91
期:
11
页码:
1050-1061
机构署名:
本校为第一且通讯机构
院系归属:
化学化工学院
数理学院
摘要:
A novel ion-imprinted adsorbent for selective solid phase extraction of thorium(IV) based on the surface of silica gel was prepared by a surface-grafted technique with methacrylic acid (MAA) as a functional monomer. After removal of Th(IV) ions with 3 mol L-1 HCl solution, the obtained imprinted particles for Th(IV) exhibited specific recognition and relatively rapid kinetic process. The maximum static and total dynamic adsorption capacity of the ion-imprinted polymers (IIPs) for Th(IV) was 33.2 and 17.3 mgg-1, respectively. A comparison of the selectivity coefficient of the imprinted polymers...

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