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author:

Lin, Z. (Lin, Z..) [1] | Chen, J. (Chen, J..) [2] | Chi, Y. (Chi, Y..) [3] | Qui, B. (Qui, B..) [4] | Lin, J. (Lin, J..) [5] | Chen, G. (Chen, G..) [6]

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Scopus

Abstract:

A glassy carbon electrode (GCE) modified with cobalt(II) meso-tetraphenylporphrine/multiwall-carbon nanotube (CoTPP/MWNT) was applied to investigate the electrochemiluminescent (ECL) behavior of luminol. The ECL intensity of luminol was found to be increased greatly on this modified electrode. The presence of cobalt(II) meso-tetraphenylporphrine (CoTPP) can catalyze the reduction of oxygen on the electrode surface to produce HOO -, which can increase the ECL intensity of luminol. Moreover, MWNT can provide the more effective area of the electrode, and can act as a promoter to enhance the electrochemical reaction. The proposed method enables a detection limit for luminol of 1.0 × 10-8 mol/L in the neutral solution. Under the optimum condition, the enhanced ECL intensity of luminol by H 2O2 had a linear relationship with the concentration of H2O2 in the range of 1.0 × 10-7 to 8.0 × 10-8 mol/L with the detection limit of 5.0 × 10 -9 mol/L. © 2008 Elsevier Ltd. All rights reserved.

Keyword:

Cobalt(II)meso-tetraphenylporphrine; Electrochemiluminescence; Luminol; Multiwall-carbon nanotube

Community:

  • [ 1 ] [Lin, Z.]Ministry of Education, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 2 ] [Chen, J.]Ministry of Education, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 3 ] [Chi, Y.]Ministry of Education, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 4 ] [Qui, B.]Ministry of Education, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 5 ] [Lin, J.]Ministry of Education, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China
  • [ 6 ] [Chen, G.]Ministry of Education, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China

Reprint 's Address:

  • [Chi, Y.]Ministry of Education, Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350002, China

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Source :

Electrochimica Acta

ISSN: 0013-4686

Year: 2008

Issue: 22

Volume: 53

Page: 6464-6468

3 . 0 7 8

JCR@2008

5 . 5 0 0

JCR@2023

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count: 23

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 3

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