期刊
ANALYTICAL METHODS
卷 6, 期 14, 页码 5258-5263出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ay00805g
关键词
-
资金
- National Natural Science Foundation of China [21175060]
- Cooperation of Industry, Education and Academy Project of Jiangsu Province, China [BY2012061]
We report on a novel strategy for electrochemiluminescent (ECL) chemical sensing by making use of an electrode modified with organosilica nanoparticles (OSiNPs) that are loaded with an iridium(III) complex Ir(pq)(2)(acac) (where pq stands for 2-phenylquinoline and acac stands for acetylacetonato). Three kinds of OSiNPs have been prepared by using vinyltrimethoxysilane, vinyltriethoxysilane, and phenyltrimethoxysilane, respectively, as the precursors. The OSiNPs were spherical in shape, uniform in size, and highly monodisperse in the aqueous phase. The luminescence properties of the Ir(III) complex remain unchanged after encapsulation. The ECL properties of the modified electrodes were evaluated by using 2-(dibutylamino) ethanol (DBAE) as the coreactant (analyte). The electrode prepared from phenyltrimethoxysilane as the precursor exhibited the best sensitivity for DBAE and gives a detection limit as low as 5.0 x 10(-9) mol L-1 and a linear range from 1.0 x 10(-8) to 1.0 x 10(-6) mol L-1.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据