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	Separation and determination of quercetin, chlorogenic acid and isoquercitrin by ionic liquid modified micellar electrokinetic capillary chromatography
	Wang Yueling; Zhongbo, Hu; Yuan Zhuobin
刊名	Chinese journal of analytical chemistry
	2006-12-01
卷号	34期号:12页码:1741-1744
关键词	Micellar electrokinetic capillary chromatography Ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate Inula britamica l
ISSN号	0253-3820
通讯作者	Yuan zhuobin()
英文摘要	An ionic liquid ( 1-ethyl-3-methylimidazolium tetrafluoroborate, 1e-3mi-tfb) modified micellar electrokinetic capillary chromatographic ( mekc) method was developed to separate and determine isoquercitrin, chlorogenic acid and quercetin. the effects of buffer ph and concentration, sodium taurocholate ( stc) concentration and ionic liquid on separation were investigated. the optimum electrophoretic conditions were as follows: 25 mmol/l borax-kh2po4(ph 9.0)- 40 mmol/l stc-1 parts per thousand 1e-3mi-tfb ( viv) as the running buffer, applied voltage of 16 kv. under the optimized conditions, the three analytes were well separated less than 11 min. a good linearity between the peak area and the concentration was observed in the range of 0. 02 - 0. 40 g/l, 0. 02 - 0. 20 g/l and 0. 08 - 0. 60 g/l with correlation coefficients of 0. 9998, 0. 9988 and 0. 9991 for isoquercitrin, chlorogenic acid and quercetin, respectively. the relative standard deviation in peak area and migration time was 2.5% and 1.1% for isoquercitrin, 2. 6% and 1.5% for chlorogenic acid, 3.0% and 1.6% for quercetin. the detection limits (s/n = 3) were 0. 0050 g/l for isoquercitrin, 0. 0045 g/l for chlorogenic acid and 0. 0040 g/l for quercetin. the method was successfully applied to separate and determine isoquercitrin, chlorogenic acid and quercetin in inula britamica l.
WOS关键词	BACKGROUND ELECTROLYTE ; ELECTROPHORESIS
WOS研究方向	Chemistry
WOS类目	Chemistry, Analytical
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000243388100017
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2378675
专题	中国科学院大学
通讯作者	Yuan Zhuobin
作者单位	Chinese Acad Sci, Grad Sch, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang Yueling,Zhongbo, Hu,Yuan Zhuobin. Separation and determination of quercetin, chlorogenic acid and isoquercitrin by ionic liquid modified micellar electrokinetic capillary chromatography[J]. Chinese journal of analytical chemistry,2006,34(12):1741-1744.
APA	Wang Yueling,Zhongbo, Hu,&Yuan Zhuobin.(2006).Separation and determination of quercetin, chlorogenic acid and isoquercitrin by ionic liquid modified micellar electrokinetic capillary chromatography.Chinese journal of analytical chemistry,34(12),1741-1744.
MLA	Wang Yueling,et al."Separation and determination of quercetin, chlorogenic acid and isoquercitrin by ionic liquid modified micellar electrokinetic capillary chromatography".Chinese journal of analytical chemistry 34.12(2006):1741-1744.

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