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author:

Zheng, L. (Zheng, L..) [1] | Zhang, L. (Zhang, L..) [2] | Tong, P. (Tong, P..) [3] | Zheng, X. (Zheng, X..) [4] | Chi, Y. (Chi, Y..) [5] | Chen, G. (Chen, G..) [6]

Indexed by:

Scopus

Abstract:

A simple and effective method of capillary electrophoresis-amperometric detection (CE-AD) coupled with transient isotachophoresis (tITP) was developed for the trace determination of doping substances. Compared with the conventional capillary electrophoresis method, the maximum enhancement factor in terms of peak heights was up to 5500-fold when the tITP technique was adopted. Under the optimum conditions, the detection limit (S/N = 3) for methylephedrine (MDP), celiprolol (CEL), sotalol (SOT) and indapamide (IDP) were 4.2 × 10-14, 6.3 × 10-13, 5.8 × 10-14 and 9.5 × 10-13 mol L-1, respectively. The RSDs of four analytes were 1.0-2.3% for migration time and 2.6-3.8% for peak current, respectively. The proposed method was successfully applied to determine the contents of SOT and IDP in real urine sample, and the excretion curve of IDP within 48 h was also investigated. The recoveries of the four doping in urine ranged from 90.0 to 102%. © 2010 Elsevier B.V. All rights reserved.

Keyword:

Amperometric detection; Beta-blocking agents; Capillary electrophoresis; Diuretics; Isotachophoresis; Stimulants

Community:

  • [ 1 ] [Zheng, L.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety (Fuzhou University), Fuzhou, 350002 Fujian, China
  • [ 2 ] [Zheng, L.]The Sport Science Research Center, Fuzhou University, Fuzhou, 350002 Fujian, China
  • [ 3 ] [Zhang, L.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety (Fuzhou University), Fuzhou, 350002 Fujian, China
  • [ 4 ] [Zhang, L.]The Sport Science Research Center, Fuzhou University, Fuzhou, 350002 Fujian, China
  • [ 5 ] [Tong, P.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety (Fuzhou University), Fuzhou, 350002 Fujian, China
  • [ 6 ] [Tong, P.]The Sport Science Research Center, Fuzhou University, Fuzhou, 350002 Fujian, China
  • [ 7 ] [Zheng, X.]School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, 350002 Fujian, China
  • [ 8 ] [Chi, Y.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety (Fuzhou University), Fuzhou, 350002 Fujian, China
  • [ 9 ] [Chi, Y.]The Sport Science Research Center, Fuzhou University, Fuzhou, 350002 Fujian, China
  • [ 10 ] [Chen, G.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety (Fuzhou University), Fuzhou, 350002 Fujian, China
  • [ 11 ] [Chen, G.]The Sport Science Research Center, Fuzhou University, Fuzhou, 350002 Fujian, China

Reprint 's Address:

  • [Zhang, L.]Ministry of Education Key Laboratory of Analysis and Detection for Food Safety (Fuzhou University), Fuzhou, 350002 Fujian, China

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Source :

Talanta

ISSN: 0039-9140

Year: 2010

Issue: 4-5

Volume: 81

Page: 1288-1294

3 . 7 2 2

JCR@2010

5 . 6 0 0

JCR@2023

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 27

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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