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author:

Xu, X. (Xu, X..) [1] | Ye, H. (Ye, H..) [2] | Wang, W. (Wang, W..) [3] | Chen, G. (Chen, G..) [4]

Indexed by:

Scopus

Abstract:

A capillary electrophoresis system coupled with wall-jet amperometric detection was used to determine five flavonoids (kaempferol, rutin, hyperoside, quercitrin, quercetin) in Herba Leonuri. Several important effect factors, such as the pH and concentration of running buffer, separation voltage, injection time, and detection potential, were investigated to acquire the optimum conditions. With 50 mmoL/L Na2B4O7-100 mmoL/L NaH2PO4 buffer (pH=7.50) as the running buffer, the five flavonoids were baseline separated within 15 min in a 60 cm length capillary at a separation voltage of 15 kV. The relationship between peak currents and analyte concentrations was linear over about 2 orders of magnitude, with detection limits (S/N = 3) ranging from 0.03 to 0.08 μg/mL for all analytes. The use of this method for the quantitation of the above flavonoids present in the real sample of Herba Leonuri was reported. © 2005 American Chemical Society.

Keyword:

Amperometric detection; Capillary electrophoresis; Flavonoids; Herba leonuri

Community:

  • [ 1 ] [Xu, X.]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 2 ] [Ye, H.]Central Laboratory, Fujian College of Traditional Chinese Medicine, Fuzhou, Fujian 350002, China
  • [ 3 ] [Wang, W.]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 4 ] [Chen, G.]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China

Reprint 's Address:

  • [Chen, G.]Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China

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Source :

Journal of Agricultural and Food Chemistry

ISSN: 0021-8561

Year: 2005

Issue: 15

Volume: 53

Page: 5853-5857

2 . 5 0 7

JCR@2005

5 . 7 0 0

JCR@2023

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 26

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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