Journal
ELECTROPHORESIS
Volume 33, Issue 13, Pages 2005-2011Publisher
WILEY-BLACKWELL
DOI: 10.1002/elps.201100714
Keywords
Capillary electrochromatography; N-methylimidazolium; One-pot synthesis; Polymer monolith
Funding
- National Basic Research Program of China (973 Program) [2009CB421601]
- National Natural Science Foundation of China [20907013, 20975032, 21075031]
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One-pot synthesis of porous polymer monolith decorated with N-methylimidazolium in a capillary was described. The polymer matrix was synthesized by in situ copolymerization and quaterization of 3-chloro-2-hydroxylpropyl methacrylate (CHPMA), ethylene dimethacrylate (EDMA), and N-methylimidazole (N-MIz). The influencing factors including amount of cross-linkers, composition of porogenic solvents, and polymerization temperature on the formation of the monolithic column were investigated. The monolithic column exhibited high column efficiency for thiourea, up to 135 000 plates per meter, and phenylmethanol, up to 102 000 plates per meter. Different types of compounds including alkylbenzenes, phenols, and inorganic anions were successfully baseline separated by capillary electrochromatography (CEC). The separation of theses analytes on the column indicated typical reversed-phase and anion-exchange chromatographic retention mechanism.
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