In this paper, a novel hydrazide compound (N'-(1,3 dimethylbutylene)-3-hydroxy-naphthohydrazide) (BMH) was synthesized by a simple three-stage reaction and its chemical structure was confirmed by ¹H NMR, ¹³C NMR and FTIR characterization. This compound was used as fluorescent sensor for the detection of Ni²⁺ based on photoluminescence quenching. The fluorescence quenching of BMH upon the addition of Ni²⁺ is due to the formation of coordination complex which was verified by bind model and density functional theory studies. The Ni²⁺ concentration dependent fluorescence quenching efficiency of BMH was examined and the detection conditions were optimized. There is a good linear relationship between the emission intensity quenching (ΔF = F₀–F) and the Ni²⁺ concentration (c) between 80 nM and 2 μM and the detection limit is 60 nM. The simple preparation of the compound BMH and the high sensitivity of the fluorescent sensor hold great promise for the determination of Ni²⁺ in environment.

本文通过简单的三步反应合成了新型的酰肼化合物（N'-（（1,3二甲基丁烯）-3-羟基-萘酰肼）（BMH），并通过¹ H NMR，¹³ C确证了其化学结构。NMR和FTIR表征。该化合物用作基于光致发光猝灭检测Ni ²⁺的荧光传感器。添加Ni ²⁺后BMH的荧光猝灭是由于形成了配位配合物，该配合物已通过结合模型和密度泛函理论研究得到证实。镍²⁺检测了BMH浓度依赖性荧光猝灭效率，并优化了检测条件。发射强度猝灭（ΔF= F ₀ –F）与Ni ²⁺浓度（c）在80 nM和2μM之间且检测极限为60 nM之间具有良好的线性关系。化合物BMH的简单制备和荧光传感器的高灵敏度为环境中Ni ²⁺的测定提供了^广阔的前景。