Inhibition of Ru complex electrochemiluminescence by phenols and anilines

被引：34

作者：

Cui, H ^{[1
]}

Li, F ^{[1
]}

Shi, MJ ^{[1
]}

Pang, YQ ^{[1
]}

Lin, XQ ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China

来源：

ELECTROANALYSIS | 2005年 / 17卷 / 07期

关键词：

electrochemiluminescence; Ru complex; inhibition; phenols; anilines; determination;

D O I：

10.1002/elan.200403108

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The effect of 30 phenols and anilines on typical Ru complex electrochemiluminescence (ECL) was systematically investigated under different conditions. It was found that all the tested compounds showed an ECL inhibiting signal. The magnitude of ECL inhibition was related to the position of the substituting group in the benzene ring and decreased in the following order: meta- > ortho- > para-. The oxidation potential of the tested compounds, the ECL spectra and UV-visible absorption spectra of Ru(bpy)(2)(3)+/tripropylamine (TPrA) in the presence of phenols and anilines, and the direct ECL between Ru(bpy)(2)(3)+ and phenols/aniline were studied. The mechanism of ECL inhibition has been proposed due to energy transfer from the excited state Ru(bpy)(2)(3)+ to a quinone or ketone or their polymer formed by electro-oxidation of phenols and anilines. The potential of analytical application was explored by use of the inhibited ECL. The results demonstrate that numerous compounds are detectable with the detection limits in the range of 10(-8)-10(-9) mol/L for Ru(bpy)(2)(3)+/TPrA system and in the range of 10(-6)-10(-7) mol/L for Ru(bpy)(2)(3)+/C2O42 system. respectively.

引用

页码：589 / 598

页数：10

共 23 条

[1] A KINETIC-STUDY OF THE AIR OXIDATION OF PYROGALLOL AND PURPUROGALLIN [J].

ABRASH, HI ;

SHIH, D ;

ELIAS, W ;

MALEKMEHR, F .

INTERNATIONAL JOURNAL OF CHEMICAL KINETICS, 1989, 21 (06) :465-476

[2]

BARTON D, 1979, COMPREHENSIVE ORGANI, V1, P740

[3] Study of the electrochemiluminescence based on tris(2,2′-bipyridine) ruthenium(II) and alcohols in a flow injection system [J].

Chen, X ;

Sato, M ;

Lin, YJ .

MICROCHEMICAL JOURNAL, 1998, 58 (01) :13-20

[4] Effect of pH on inhibition and enhancement of Luminol-H2O2-Co2+ chemiluminescence by phenolic compounds and amino acids [J].

Cui, H ;

Shi, MJ ;

Meng, R ;

Zhou, J ;

Lai, CZ ;

Lin, XQ .

PHOTOCHEMISTRY AND PHOTOBIOLOGY, 2004, 79 (03) :233-241

[5] Oxidative phenol coupling - tyrosine dimers and libraries containing tyrosyl peptide dimers [J].

Eickhoff, H ;

Jung, G ;

Rieker, A .

TETRAHEDRON, 2001, 57 (02) :353-364

[6] Recent applications of electrogenerated chemiluminescence in chemical analysis [J].

Fähnrich, KA ;

Pravda, M ;

Guilbault, GG .

TALANTA, 2001, 54 (04) :531-559

[7] Effect of pH on the stability of plant phenolic compounds [J].

Friedman, M ;

Jürgens, HS .

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 2000, 48 (06) :2101-2110

[8] Development of an equilibrium immunoassay using electrochemiluminescent detection for a novel recombinant protein product and its application to pre-clinical product development [J].

Grimshaw, C ;

Gleason, C ;

Chojnicki, E ;

Young, J .

JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS, 1997, 16 (04) :605-612

[9] Unusually large numbers of electrons for the oxidation of polyphenolic antioxidants [J].

Hotta, H ;

Sakamoto, H ;

Nagano, S ;

Osakai, T ;

Tsujino, Y .

BIOCHIMICA ET BIOPHYSICA ACTA-GENERAL SUBJECTS, 2001, 1526 (02) :159-167

[10] A review of recent trends in analytical applications of electrogenerated chemiluminescence [J].

Knight, AW .

TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 1999, 18 (01) :47-62

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