Electrogenerated chemiluminescence of ruthenium (II) bipyridyl complex directly immobilized on glassy carbon electrodes

被引：8
作者：
Xiang, Minghui [1 ]
Lei, Rong [1 ]
Li, Na [1 ]
Li, Kean [1 ]
机构：
[1] Peking Univ, Key Lab Bioorgan Chem & Mol Engn, Minist Educ, Inst Analyt Chem,Coll Chem & Mol Engn,Beijing Nat, Beijing 100871, Peoples R China
来源：
JOURNAL OF APPLIED ELECTROCHEMISTRY | 2009年 / 39卷 / 06期
关键词：
Ruthenium (II) bipyridyl complex; Glassy carbon electrode; Electrogenerated chemiluminescence; Tripropylamine; Amino acids; COMPOSITE THIN-FILMS; TRIS(2,2'-BIPYRIDYL)RUTHENIUM(II) ION; ELECTROCHEMILUMINESCENT DETECTION; SILICA NANOPARTICLES; OXIDE ELECTRODES; MULTILAYER FILMS; SENSOR; TRIS(2,2'-BIPYRIDINE)RUTHENIUM(II); ELECTROCHEMISTRY; RU(BPY)(3)(2+);
D O I：
10.1007/s10800-008-9742-9
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Ru(bpy)(3)Cl-2 was used to modify the glass carbon electrodes (GCE) by oxidation and co-deposition on the electrode surface. The modified electrodes were characterized by atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). About 2.2 x 10(-9) mol Ru(bpy)(3) (2+) was immobilized on the GCE surface (phi = 4 mm). The modified GC electrodes showed stable electrochemiluminescence with tripropylamine (TPrA) as the co-reactant with a linear range from 10 to 500 mu M (R (2) = 0.999). Among the 10 amino acids tested, the modified electrode system showed selective response to arginine and lysine, indicating that the molecular structure played an important role as co-reactant. This simple and sensitive electrode modifying method when combined with flow-injection or liquid chromatography systems has the potential for amino acid analyses.
引用
收藏
页码：921 / 925
页数：5
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