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author:

Kong, Dexian (Kong, Dexian.) [1] | Lin, Bing (Lin, Bing.) [2] | Han, Yejian (Han, Yejian.) [3] | Zheng, Xinyu (Zheng, Xinyu.) [4] | Zhou, Xuechou (Zhou, Xuechou.) [5] | Li, Qinglu (Li, Qinglu.) [6] | Chi, Yuwu (Chi, Yuwu.) [7] | Chen, Guonan (Chen, Guonan.) [8]

Indexed by:

EI

Abstract:

Omeprazole (OPZ) as a high-efficiency coreactant in the electrochemiluminescence (ECL) of Ru(bpy)32+ on a bare Pt electrode has been studied in this paper. Based on the strong enhancement effect of OPZ on the ECL of Ru(bpy)32+, a simple, rapid and sensitive method for the determination of omeprazole has been established. Under the optimum conditions, the logarithmic ECL enhancement versus the logarithmic concentration of OPZ is linear over a wide concentration range of 2.0 × 10-7 to 5.0 × 10-4 M (r = 0.9945), with a detection limit of 2.0 × 10-8 M (6.9 ng/mL, S/N = 3) in a pH = 11.5 100 mM phosphate buffer solution containing 1.0 × 10-4 M Ru(bpy)32+. To demonstrate its applicability, the proposed method was applied in the determination of OPZ in capsules and the recoveries were ranged from 93.3%-106.7%. These provide a possibility to employ the new ECL method for OPZ detection in pharmaceutical preparations. According to the study of electrochemical behavior, ECL behavior and ECL emission spectrum of Ru(bpy)32+/OPZ system, a possible ECL mechanism was proposed. © 2014 Elsevier Ltd.

Keyword:

Chemical engineering Electrochemistry Emission spectroscopy

Community:

  • [ 1 ] [Kong, Dexian]School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
  • [ 2 ] [Kong, Dexian]MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fujian 350108, China
  • [ 3 ] [Lin, Bing]School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
  • [ 4 ] [Han, Yejian]School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
  • [ 5 ] [Zheng, Xinyu]School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
  • [ 6 ] [Zhou, Xuechou]School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
  • [ 7 ] [Li, Qinglu]School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
  • [ 8 ] [Chi, Yuwu]MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fujian 350108, China
  • [ 9 ] [Chen, Guonan]MOE Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fujian 350108, China

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Source :

Electrochimica Acta

ISSN: 0013-4686

Year: 2014

Volume: 123

Page: 111-116

4 . 5 0 4

JCR@2014

5 . 5 0 0

JCR@2023

ESI HC Threshold:268

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 4

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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