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Sensors 2016, 16(5), 647; doi:10.3390/s16050647

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

1
Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea
2
Department of Chemistry, Sookmyung Women’s University, Seoul 04310, Korea
3
Department of Chemistry Education and Institute of Fusion Science, Chonbuk National University, Jeonju 54896, Korea
*
Authors to whom correspondence should be addressed.
Academic Editor: W. Rudolf Seitz
Received: 5 March 2016 / Revised: 22 April 2016 / Accepted: 3 May 2016 / Published: 5 May 2016
(This article belongs to the Section Chemical Sensors)
View Full-Text   |   Download PDF [2478 KB, uploaded 5 May 2016]   |  

Abstract

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 µM–10 mM, and the detection limit was 1 µM. 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. View Full-Text
Keywords: hydrazine; detection; indium tin oxide electrode; dopamine; poly(dopamine) film; cyclic voltammetry hydrazine; detection; indium tin oxide electrode; dopamine; poly(dopamine) film; cyclic voltammetry
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lee, J.Y.; Nguyen, T.L.; Park, J.H.; Kim, B.-K. Electrochemical Detection of Hydrazine Using Poly(dopamine)-Modified Electrodes. Sensors 2016, 16, 647.

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