Electrochemical Detection of Hydrazine Using Poly(dopamine)-Modified Electrodes

被引：35
|
作者：
Lee, Ji Young [1 ]
Truc Ly Nguyen [2 ]
Park, Jun Hui [3 ]
Kim, Byung-Kwon [2 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Chem, Daejeon 34141, South Korea
[2] Sookmyung Womens Univ, Dept Chem, Seoul 04310, South Korea
[3] Chonbuk Natl Univ, Dept Chem Educ, Jeonju 54896, South Korea
来源：
SENSORS | 2016年 / 16卷 / 05期
基金：
新加坡国家研究基金会;
关键词：
hydrazine; detection; indium tin oxide electrode; dopamine; poly(dopamine) film; cyclic voltammetry; CHEMICAL SENSOR; GOLD NANOPARTICLES; POLYDOPAMINE; OXIDATION; DOPAMINE; FILM; NANOCOMPOSITES; PERFORMANCE; FABRICATION; PORPHYRIN;
D O I：
10.3390/s16050647
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
We have developed a simple and selective method for the electrochemical detection of hydrazine (HZ) using poly(dopamine) (pDA)-modified indium tin oxide (ITO) electrodes. Modification with pDA was easily achieved by submerging the ITO electrode in a DA solution for 30 min. The electrocatalytic oxidation of HZ on the pDA-modified ITO electrode was measured by cyclic voltammetry. In buffer solution, the concentration range for linear HZ detection was 100 mu M-10 mM, and the detection limit was 1 mu M. The proposed method was finally used to determine HZ in tap water to simulate the analysis of real samples. This method showed good recovery (94%-115%) and was not affected by the other species present in the tap water samples.
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页数：10
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