title: Determination of hydrazine hydrate based on electrochemiluminescence of Ru(bpy)3(2+).
abstract: Considering of the basic properties and also the two nitrogen atoms in the structure, hydrazine hydrate was employed to be an amine additive candidate, to build a Ru(bpy)(3)(2+) /hydrazine electrochemiluminescence (ECL) system, and ECL of Ru(bpy)(3)(2+) has been employed for the determination of hydrazine hydrate in the paper. The result demonstrated that the logarithmic ECL increasing (ΔECL = ECL(after addition of hydrazine) - ECL(before addition of hydrazine)) versus the logarithmic concentration of hydrazine hydrate is linear over a concentration range of 1.0 × 10(-9) to 1.0 × 10(-5) mol/L, on both glassy carbon and Pt electrodes in a pH 9 phosphate buffer. The hydrazine hydrate detection limit was down to 1.0 × 10(-9) mol/L, comparatively lower than other detection methods. To check its applicability, the proposed method was applied to the determination of hydrazine hydrate added into a tap water sample with good reproducibility and stability. All these provide a possibility to develop a novel ECL detection method for hydrazine in water.
authors.affiliation: School of Chemistry, Dalian University of Technology, 2 Linggong Road, Ganjingzi District, Dalian, 116023, China, liufengyu@dlut.edu.cn.
authors.forename: Fengyu
authors.initials: F
authors.lastname: Liu
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Fusheng
authors.initials: F
authors.lastname: Li
authors.forename: Shiguo
authors.initials: S
authors.lastname: Sun
mesh_terms: D060766:Drinking Water / Q000737:chemistry; D004563:Electrochemistry; D006834:Hydrazines / Q000032:analysis*; D057230:Limit of Detection; D008163:Luminescent Measurements; D009942:Organometallic Compounds / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D060766:Drinking Water; D006834:Hydrazines; D009942:Organometallic Compounds; D014874:Water Pollutants, Chemical; C415768:tris(2,2'-bipyridyl)ruthenium(II)