School of Chemistry, Dalian University of Technology, 2 Linggong Road, Ganjingzi District, Dalian, 116023, China,
Environ Monit Assess. 2013 May;185(5):4153-8. doi: 10.1007/s10661-012-2857-9. Epub 2012 Sep 25.
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.
考虑到肼的基本性质以及其结构中的两个氮原子，将水合肼作为胺添加剂候选物，构建了 Ru(bpy)(3)(2+) /肼电化学发光（ECL）体系，并在该体系中采用 Ru(bpy)(3)(2+)的 ECL 用于测定水合肼。结果表明，在 pH 9 的磷酸盐缓冲溶液中，无论是在玻碳电极还是 Pt 电极上，在 1.0×10(-9)到 1.0×10(-5) mol/L 的浓度范围内，肼浓度的对数与 ECL 增强量（ΔECL = ECL（加入肼后）-ECL（加入肼前））之间呈线性关系。肼的检测限低至 1.0×10(-9) mol/L，低于其他检测方法。为了检验其适用性，该方法被用于测定自来水中添加的肼，具有良好的重现性和稳定性。所有这些都为开发水中肼的新型 ECL 检测方法提供了可能。
