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author:

Qiu, Bin (Qiu, Bin.) [1] (Scholars:邱彬) | Xue, Lingling (Xue, Lingling.) [2] | Wu, Yanping (Wu, Yanping.) [3] | Lin, Zhenyu (Lin, Zhenyu.) [4] (Scholars:林振宇) | Guo, Longhua (Guo, Longhua.) [5] | Chen, Guonan (Chen, Guonan.) [6] (Scholars:陈国南)

Indexed by:

EI Scopus SCIE

Abstract:

Inhibited Ru(bpy)(3)(2+) electrochemiluminescence by inorganic oxidants is investigated. Results showed that a number of inorganic oxidants can quench the ECL of Ru(bpy)(3)(2+)/tri-n-propylamine (TPrA) system, and the logarithm of the decrease in ECL intensity (6,1) was proportional to the logarithm of analyte concentrations. Based on which, a sensitive approach for detection of these inorganic oxidants was established, e.g. the log-log plots of AI versus the concentration of MnO4-, Cr2O77- and Fe(CN)(6)(3-) are linear in the range of 1 x 10(-7) to 3 x 10(-4) m for MnO4- and Cr2O77-, and 1 x 10(-7) to 1 x 10(-4) M for Fe(CN)(6)(3-), with the limit of detection (LOD) of 8.0 x 10(-8) M, 2 x 10(-8) M, and 1 x 10(-8) M, respectively. A series of experiments such as a comparison of the inhibitory effect of different compounds on Ru(bpy)(3)(2+)/TPrA ECL, ECL emission spectra, UV-Vis absorption spectra etc. were investigated in order to discover how these inorganic analytes quench the ECL of Ru(bpy)(3)(2+)/TPrA system. A mechanism based on consumption of TPrA intermediate (TPrA.) by inorganic oxidants was proposed. (C) 2011 Elsevier B.V. All rights reserved.

Keyword:

Electrochemiluminescence Inhibitory Inorganic oxidants Quenching Ru(bpy)(3)(2+)

Community:

  • [ 1 ] [Qiu, Bin]Fuzhou Univ, Dept Chem, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Minist Educ,Key Lab Anal & Detect Food Safety, Fuzhou 350002, Peoples R China
  • [ 2 ] [Xue, Lingling]Fuzhou Univ, Dept Chem, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Minist Educ,Key Lab Anal & Detect Food Safety, Fuzhou 350002, Peoples R China
  • [ 3 ] [Wu, Yanping]Fuzhou Univ, Dept Chem, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Minist Educ,Key Lab Anal & Detect Food Safety, Fuzhou 350002, Peoples R China
  • [ 4 ] [Lin, Zhenyu]Fuzhou Univ, Dept Chem, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Minist Educ,Key Lab Anal & Detect Food Safety, Fuzhou 350002, Peoples R China
  • [ 5 ] [Guo, Longhua]Fuzhou Univ, Dept Chem, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Minist Educ,Key Lab Anal & Detect Food Safety, Fuzhou 350002, Peoples R China
  • [ 6 ] [Chen, Guonan]Fuzhou Univ, Dept Chem, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Minist Educ,Key Lab Anal & Detect Food Safety, Fuzhou 350002, Peoples R China

Reprint 's Address:

  • 郭隆华

    [Guo, Longhua]Fuzhou Univ, Dept Chem, Fujian Prov Key Lab Anal & Detect Technol Food Sa, Minist Educ,Key Lab Anal & Detect Food Safety, Fuzhou 350002, Peoples R China

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Source :

TALANTA

ISSN: 0039-9140

Year: 2011

Issue: 1

Volume: 85

Page: 339-344

3 . 7 9 4

JCR@2011

5 . 6 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 30

SCOPUS Cited Count: 31

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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