title: Electrochemical Detection of Hydrazine Using Poly(dopamine)-Modified Electrodes.
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.
authors.affiliation: Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea. berry1504@kaist.ac.kr.
authors.forename: Ji Young
authors.initials: JY
authors.lastname: Lee
authors.affiliation: Department of Chemistry, Sookmyung Women's University, Seoul 04310, Korea. trucly162@sookmyung.ac.kr.
authors.forename: Truc Ly
authors.initials: TL
authors.lastname: Nguyen
authors.affiliation: Department of Chemistry Education and Institute of Fusion Science, Chonbuk National University, Jeonju 54896, Korea. echem@jbnu.ac.kr.
authors.forename: Jun Hui
authors.initials: JH
authors.lastname: Park
authors.affiliation: Department of Chemistry, Sookmyung Women's University, Seoul 04310, Korea. kimbk@sookmyung.ac.kr.
authors.forename: Byung-Kwon
authors.initials: BK
authors.lastname: Kim
keywords: cyclic voltammetry; detection; dopamine; hydrazine; indium tin oxide electrode; poly(dopamine) film