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author:

Zhang, L (Zhang, L.) [1] (Scholars:张兰) | Tong, P (Tong, P.) [2] (Scholars:童萍) | Chen, GN (Chen, GN.) [3] (Scholars:陈国南)

Indexed by:

EI Scopus SCIE

Abstract:

Aesculetin is the product of the hydrolysis reaction of aesculin. A high sensitivity and good repeatability method based on capillary electrophoresis with amperometric detection (CE-AD) was developed for simultaneous determination of aesculin and aesculetin in the hydrolysate of aesculin. Under the optimum condition: 10 mmol/L KH2PO4-5 mmol/L Na2B4O7 (pH 6.0) buffer, separation at 18 kV and +900 mV (versus Ag/AgCl) as the detection potential, the hydrolysis rate constants of aesculin hydrolysis at 25, 30, 35 40 and 45 C in 0.1 mol/L KOH were obtained as 1.45 x 10(-2) min(-1), 2.01 x 10(-2) min(-1), 2.93 x 10(-2) min(-1), 3.76 x 10(-2) min(-1) and 5.05x 10(-2) min(-1) respectively. It was calculated that the activation energy for aesculin hydrolysis was 49.4 kJ/mol. (c) 2005 Elsevier B.V. All rights reserved.

Keyword:

activation energy aesculetin aesculin amperometric detection capillary electrophoresis hydrolysis rate constant

Community:

  • [ 1 ] Fuzhou Univ, Key Lab Anal & Detect Technol Food Safety, Fuzhou 350002, Fujian, Peoples R China
  • [ 2 ] Fuzhou Univ, MOE, Fuzhou 350002, Fujian, Peoples R China
  • [ 3 ] Fuzhou Univ, Dept Chem, Fuzhou 350002, Fujian, Peoples R China
  • [ 4 ] Fuzhou Univ, Sport Sci Res Ctr, Fuzhou 350002, Fujian, Peoples R China

Reprint 's Address:

  • 陈国南

    [Chen, GN]Fuzhou Univ, 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: 2005

Issue: 1-2

Volume: 1098

Page: 194-198

3 . 0 9 6

JCR@2005

3 . 8 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 18

SCOPUS Cited Count: 17

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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