Anion selective exhaustive injection-sweep-micellar electrokinetic chromatography

被引：87
|
作者：
Kim, JB [1 ]
Otsuka, K [1 ]
Terabe, S [1 ]
机构：
[1] Himeji Inst Technol, Fac Sci, Kamigori, Hyogo 6781297, Japan
来源：
JOURNAL OF CHROMATOGRAPHY A | 2001年 / 932卷 / 1-2期
关键词：
anion selective exhaustive injection; injection methods; micellar electrokinetic chromatography; sample stacking; sweeping; surfactants; carboxylic acids; amino acids; naphthalenedisulfonic acids;
D O I：
10.1016/S0021-9673(01)01246-8
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
A selective on-line sample concentration technique of anion selective exhaustive injection (ASEI)-sweep-micellar electrokinetic chromatography (MEKC) was evaluated using a cationic surfactant. To suppress the electroosmotic flow, a polyacrylamide-coated capillary was introduced. Some aromatic carboxylic acids, dansyl amino acids, and naphthalene-disulfonic acids were used as test analytes. About 1000- to 6000-fold increases in detection sensitivity were obtained in terms of peak heights by ASEI-sweep-MEKC. (C) 2001 Elsevier Science B.V. All rights reserved.
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页码：129 / 137
页数：9
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