Enhanced Anodic Electrochemiluminescence of Dissolved Oxygen with 2-(Dibutylamino) ethanol at TiO2 Nanoparticles Modified Platinum Electrode for Dopamine Detection

被引：8
作者：
Guo, Yun-Xia [1 ]
Li, Qi-Le [1 ]
Ding, Shou-Nian [1 ]
Bao, Ning [2 ]
机构：
[1] Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Jiangsu, Peoples R China
[2] Nantong Univ, Sch Publ Hlth, Nantong 226019, Jiangsu, Peoples R China
来源：
ELECTROANALYSIS | 2016年 / 28卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Electrochemiluminescence; TiO2; nanoparticles; 2-(dibutylamino) ethanol; Dopamine; ELECTROGENERATED CHEMILUMINESCENCE; ENZYME; BRAIN; STATE;
D O I：
10.1002/elan.201500393
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
The anodic electrochemiluminescence (ECL) of dissolved oxygen with 2-(dibutylamino) ethanol (DBAE) on platinum electrode has been reported previously by our group. Interestingly, the ECL intensity can be greatly amplified at TiO2 nanoparticles modified platinum electrode (TiO2/Pt), which is due to the catalytic effect of TiO2 nanoparticles to electrochemical oxidation of DBAE. It is the first case to obtain the enhanced ECL from luminophor by electrochemical catalysis of co-reactant. The enhanced anodic ECL intensity can be quenched by dopamine sensitively. And the ECL intensity versus the logarithm of concentration of dopamine was linear over the 4.0 x 10(-12)-1.8 x 10(-8) M (R-2 = 0.9957), with the limit of detection of 2.7 x 10(-12) M (S/N= 3).
引用
收藏
页码：282 / 286
页数：5
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