Flow injection-chemiluminescence determination of ascorbic acid based on luminol-ferricyanide-gold nanoparticles system

被引：42
|
作者：
Dong, Yong Ping [1 ]
Gao, Ting Ting [1 ]
Chu, Xiang Feng [1 ]
Chen, Jun [1 ]
Wang, Cheng Ming [2 ]
机构：
[1] Anhui Univ Technol, Sch Chem & Chem Engn, Maanshan 243002, Peoples R China
[2] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
来源：
JOURNAL OF LUMINESCENCE | 2014年 / 154卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Chemiluminescence; Ascorbic acid; Gold nanoparticles; Luminol; Ferricyanide; GLASSY-CARBON ELECTRODE; HYDROGEN-PEROXIDE; ENHANCEMENT; ARRAY; OXIDATION; CATALYSTS; ASSAY;
D O I：
10.1016/j.jlumin.2014.05.011
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A novel flow-injection chemiluminescence (CL) method for the determination of ascorbic acid (AA) is proposed, based upon its enhancing effect on the CL reaction of luminol with ferricyanide catalyzed by gold nanoparticles in alkaline solution. Different sizes gold nanoparticles exhibited different catalyzing effect towards luminol CL and 38 nm gold nanoparticles exhibited the best enhancing effect. Under the optimal experimental conditions, a linear relationship was obtained between the CL intensity and the concentration of ascorbic acid in the range of 1.0 x 10(-10)-1.0 x 10(-6) mol L-1. The detection limit was 2.0 x 10(-11) mol(-1) and the relative standard deviation for 1.0 x 10(-6) mol L-1 ascorbic acid was 0.71% (n=10). This method has been successfully applied in the determination of ascorbic acid in several real samples. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：350 / 355
页数：6
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