Yeap Guan-Yeow, Chan Yi-Huan, Mahmood Wan Ahmad Kamil
Liquid Crystal Research Laboratory, School of Chemical Sciences, Universiti Sains Malaysia, 11800, Minden, Penang, Malaysia.
J Fluoresc. 2017 Nov;27(6):2017-2022. doi: 10.1007/s10895-017-2140-0. Epub 2017 Aug 30.
A novel, 100% water-soluble chalcone based chemosensing receptor {1-[3-(2-Hydroxy-phenyl)-3-oxo-propenyl]-naphthalen-2-yloxy}-acetic acid, L was synthesized and characterized. The receptor L is designed based on the chelation enhanced fluorescence (CHEF) mechanism. The chemosensing properties of L were evaluated by UV-vis and fluorescence spectrometric methods. It exhibits highly selective recognition ability towards aluminum ions in water over other metal ions. The binding stoichiometry of L- Al complex is 2:1 by means of Job's plot and the detection limit is 5.66 × 10 M.
合成并表征了一种新型的、100%水溶性的基于查尔酮的化学传感受体{1-[3-(2-羟基苯基)-3-氧代丙烯基]-萘-2-基氧基}-乙酸，即L。受体L是基于螯合增强荧光（CHEF）机制设计的。通过紫外-可见光谱和荧光光谱法评估了L的化学传感特性。它在水中对铝离子表现出比其他金属离子更高的选择性识别能力。通过Job曲线法确定L-Al配合物的结合化学计量比为2:1，检测限为5.66×10⁻⁸ M。
