摘要
采用N-丙烯酰琥珀酰亚胺(NAS)为基质单体,乙二醇二甲基丙烯酸酯(EDMA)为交联剂,原位聚合制备聚(NAS-co-EDMA)毛细管整体柱,并通过化学键合法将自合成的纤维素-三(4-甲基苯甲酸酯)(CTMB)共价键合到整体柱上,制备用于快速手性分离的纤维素键合型手性整体柱。优化了整体柱制备和衍生化条件;通过对固定相红外光谱和电渗流表征,证实CTMB已键合到整体柱上。探讨了流动相中乙酸浓度、甲醇含量等条件对整体柱手性分离的影响。使用该整体柱,分别在1.2 min内实现了5种对映体(苯丙氨酸、酪氨酸、色氨酸、普洛萘尔、苯乙醇)的毛细管电色谱快速手性分离,分离度可达1.31。
A chiral monolithic capillary column for rapid enantioseparation was prepared by covalently bonding of cellulose tris（4-methylbenzoate）（CTMB） on N-acryloxysuccinimide-based monolith.The preparation and derivatization conditions of the monolithic column were optimized.The successful grafting of CTMB was confirmed on the characterizations of the infrared spectrum and the cathodic electroosmotic flow（EOF）.The effects of acetic acid concentration and methanol content on the enantioseparation were studied.The solvent resistance,reproducibility and stability of the monolithic column have also been investigated.The rapid enantioseparation of the five solutes（phenylalanine,tyrosine,tryptophan,propranolol and phenylethanol） with resolution（Rs） values up to 1.31 was achieved within 1.2 min on the prepared chiral capillary monolithic column by capillary electrochromatography.
出处
《色谱》
CAS
CSCD
北大核心
2011年第12期1222-1229,共8页
Chinese Journal of Chromatography
基金
福建省科技厅重大专项(2010NZ0001-1)
福州大学科技发展基金项目(2010-XQ-17)
