Comparison of mixed-mode anion-exchange performance of N-vinylimidazole-divinylbenzene sorbent

被引：16
作者：
Fontanals, Nuria
Trammell, Brian C.
Galia, Marina
Marce, Rosa Maria
Iraneta, Pamela C.
Borrull, Francesc
Neue, Uwe D.
机构：
[1] Univ Rovira & Virgili, Dept Quim Analit & Quim Organ, Tarragona 43007, Spain
[2] Waters Corp, Milford, MA USA
来源：
JOURNAL OF SEPARATION SCIENCE | 2006年 / 29卷 / 11期
关键词：
mixed-mode anion-exchanger sorbents; N-vinylimidazole-divinylbenzene polymeric sorbent; solid-phase extraction;
D O I：
10.1002/jssc.200600035
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A newly synthesized copolymer based on N-vinylimidazole-divinylbenzene (NVIm-DVB) was evaluated as a mixed-mode anion-exchange sorbent for SPE, since the NVIm monomer apart from its hydrophilic properties can be protonated at a certain pH, and then performs as an anion-exchanger. To investigate the behavior of the NVIm-based sorbent, the SPE performance was evaluated under reversed-phase (RP), weak anion-exchange, and strong anion-exchange conditions. The results for the NVIm-DVB sorbent were also compared to commercial reference sorbents from each group: Oasis HLB, Oasis WAX, and Oasis MAX, respectively. SPE results from this evaluation showed that NVIm-DVB can be used as an RP material, compared to Oasis HLB. It also has the potential to act as a strong anion-exchange sorbent, compared to Oasis MAX, since under the proper conditions it was able to fraction and quantitatively recover a group of selected solutes.
引用
收藏
页码：1622 / 1629
页数：8
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