Chemiluminescence reactions of luminol system catalyzed by nanoparticles of a gold/silver alloy

被引：43

作者：

Li, Shifeng ^{[1
]}

Tao, Shanjun ^{[1
]}

Wang, Fenfen ^{[1
]}

Hong, Jianguo ^{[1
]}

Wei, Xianwen ^{[1
]}

机构：

[1] Anhui Normal Univ, Anhui Key Lab Mol Based Mat, Anhui Key Lab Funct Mol Solids, Coll Chem & Mat Sci, Wuhu 241000, Peoples R China

来源：

MICROCHIMICA ACTA | 2010年 / 169卷 / 1-2期

关键词：

Flow injection; Chemiluminescence; Luminol; Au-Ag alloy nanoparticles; FLOW-INJECTION CHEMILUMINESCENCE; GOLD NANOPARTICLES; ENHANCEMENT; ABSORPTION; MECHANISM; OXIDATION; PEROXIDE; ION;

D O I：

10.1007/s00604-010-0302-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The chemiluminescence (CL) of luminol-H2O2 system is strongly enhanced on addition of nanoparticles composed of a gold/silver alloy (ratio 5:4). The effect is attributed to a catalytically enhanced decomposition of H2O2 to produce reactive oxygen species. A reaction mechanism is proposed. Organic compounds containing hydroxy, amino, or thiol groups (such as amino acids, dopamine, pyrocatechol) can inhibit the CL signal of the system. It is concluded that the system has a large potential in terms of the determination of such compounds.

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收藏

页码：73 / 78

页数：6

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