Glycine-functionalized carbon quantum dots as chemiluminescence sensitization for detection of m-phenylenediamine

被引:33
作者
Yan, Zhengyu [1 ]
Yu, Yan [1 ]
Chen, Jianqiu [1 ]
机构
[1] China Pharmaceut Univ, Dept Analyt Chem, Nanjing 210009, Jiangsu, Peoples R China
关键词
ELECTROGENERATED CHEMILUMINESCENCE; NANOCRYSTALS; FACILE;
D O I
10.1039/c4ay02124j
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
A novel sensing system has been designed for the detection of m-phenylenediamine based on carbon quantum dots (CQDs)-improved chemiluminescence (CL) in a luminol-potassium permanganate (KMnO4) system. The CQDs were synthesized by pyrolyzing a mixture of citric acid (CA) and glycine (Gly). Under the action of CQDs and KMnO4, the luminol can be oxidized by synergy, which significantly increases the chemiluminescence intensity. In this work, it has been demonstrated that this facile methodology can offer a rapid, sensitive and reliable detection of m-phenylenediamine with a detection limit as low as 1.02 x 10(-3) g L-1 and a dynamic range from 2.0 x 10(-3) to 3.0 x 10(-1) g L-1, which shows a promising application prospect.
引用
收藏
页码:1133 / 1139
页数:7
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