Chemiluminescence reactions of luminol system catalyzed by nanoparticles of a gold/silver alloy
Chemiluminescence reactions of luminol system catalyzed by nanoparticles of a gold/silver alloy
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DOI：
10.1007/s00604-010-0302-8
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发表时间：
2010-02
影响因子：
5.7
通讯作者：
Shifeng Li;Shanjun Tao;Fenfen Wang;Jianguo Hong;Xian‐Wen Wei
中科院分区：
文献类型：
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作者：
Shifeng Li;Shanjun Tao;Fenfen Wang;Jianguo Hong;Xian‐Wen Wei
添加由金/银合金（比例 5:4）组成的纳米颗粒后，鲁米诺-H2O2 系统的化学发光 (CL) 显着增强。该效果归因于催化增强 H2O2 分解产生活性氧。提出了反应机理。含有羟基、氨基或硫醇基团的有机化合物（如氨基酸、多巴胺、邻苯二酚）可以抑制系统的CL信号。结论是该系统在此类化合物的测定方面具有巨大的潜力。
The chemiluminescence (CL) of luminol–H2O2system 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 H2O2to 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.