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author:

Yu, Lishuang (Yu, Lishuang.) [1] | Xu, Xueqin (Xu, Xueqin.) [2] (Scholars:许雪琴) | Huang, Lu (Huang, Lu.) [3] | Lin, Jinming (Lin, Jinming.) [4] | Chen, Guonan (Chen, Guonan.) [5] (Scholars:陈国南)

Indexed by:

EI Scopus SCIE

Abstract:

A new rapid and reproducible method using microemulsion electrokinetic chromatography (MEEKC) combining field amplified sample injection and electroosmotic flow suppressant for the analysis of five quinolizidine alkaloids is developed in this paper. For the separation of five quinolizidine alkaloids, a running buffer composed of 1.2% (v/v) 1-butanol, 0.6% (v/v) ethyl acetate and 98.2% (v/v) 1 mM Na2B4O7-2 mm NaH2PO4 buffer solution containing 21 mM sodium cholate (SC) (pH 6.5) was developed. The resolution of the analytes was improved significantly by adding a divalent cation (e.g., Mg2+) to the running buffer as an electroosmotic flow modification. In order to analyze trace quinolizidine alkaloids in traditional Chinese herbal medicines, field amplified sample injection (FASI) was applied to increase the detection sensitivity. The detection limits (defined as S/N = 3) for the analytes could be as low as 0.0001 mu g/mL. This method was applied for the determination of quinolizidine alkaloids in real samples with simple extraction procedures, and the assay results were satisfactory. (C) 2008 Elsevier B.V. All rights reserved.

Keyword:

electrokinetic chromatography electroosmotic flow suppressant field amplified sample injection microemulsion quinolizidine alkaloids

Community:

  • [ 1 ] [Yu, Lishuang]Fuzhou Univ, Dept Chem, Minist Educ, Key Lab Anal & Detect Technol Food Safety, Fuzhou 350002, Fujian, Peoples R China
  • [ 2 ] [Xu, Xueqin]Fuzhou Univ, Dept Chem, Minist Educ, Key Lab Anal & Detect Technol Food Safety, Fuzhou 350002, Fujian, Peoples R China
  • [ 3 ] [Huang, Lu]Fuzhou Univ, Dept Chem, Minist Educ, Key Lab Anal & Detect Technol Food Safety, Fuzhou 350002, Fujian, Peoples R China
  • [ 4 ] [Lin, Jinming]Fuzhou Univ, Dept Chem, Minist Educ, Key Lab Anal & Detect Technol Food Safety, Fuzhou 350002, Fujian, Peoples R China
  • [ 5 ] [Chen, Guonan]Fuzhou Univ, Dept Chem, Minist Educ, Key Lab Anal & Detect Technol Food Safety, Fuzhou 350002, Fujian, Peoples R China

Reprint 's Address:

  • 陈国南

    [Chen, Guonan]Fuzhou Univ, Dept Chem, Minist Educ, Key Lab Anal & Detect Technol Food Safety, Fuzhou 350002, Fujian, Peoples R China

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Source :

JOURNAL OF CHROMATOGRAPHY A

ISSN: 0021-9673

Year: 2008

Volume: 1198

Page: 220-225

3 . 7 5 6

JCR@2008

3 . 8 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 34

SCOPUS Cited Count: 35

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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