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Comparison of mixed‐mode anion‐exchange performance of N ‐vinylimidazole‐divinylbenzene sorbent
Author(s) -
Fontanals Núria,
Trammell Brian C.,
Galià Marina,
Marcé Rosa Maria,
Iraneta Pamela C.,
Borrull Francesc,
Neue Uwe D.
Publication year - 2006
Publication title -
journal of separation science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.72
H-Index - 102
eISSN - 1615-9314
pISSN - 1615-9306
DOI - 10.1002/jssc.200600035
Subject(s) - sorbent , divinylbenzene , chemistry , ion exchange , monomer , chromatography , copolymer , ion , nuclear chemistry , adsorption , styrene , organic chemistry , polymer
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.