席夫碱配体3-（-（2-羟基苯基亚氨基）甲基）-4H-色烯-4-酮作为用于检测水溶液中铜、铁和钒的比色传感器。
Schiff Base Ligand 3-(-(2-Hydroxyphenylimino) Methyl)-4H-Chromen-4-One as Colorimetric Sensor for Detection of Cu, Fe, and V in Aqueous Solutions.
作者信息
Alorabi Ali Q, Zabin Sami A, Alam Mohammad Mahboob, Abdelbaset Mohamed
机构信息
Chemistry Department, Faculty of Science, Albaha University, P.O. Box 1988, Albaha 65799, Saudi Arabia.
Chemistry Department, Faculty of Science, Al Azhar University, Assiut Branch, Assiut 71524, Egypt.
出版信息
Int J Anal Chem. 2022 Dec 30;2022:4899145. doi: 10.1155/2022/4899145. eCollection 2022.
The ligand 3-(-(2-hydroxyphenylimino) methyl)-4H-chromen-4-one (SL) has been synthesized and examined as a chemosensor for some metal ions in aqueous solutions based on colorimetric analysis. Color changes were monitored using UV-visible spectroscopy. Binding stoichiometry and limit of detection (LOD) were estimated using titration experimentation based on UV-visible absorbance and Job's plot. The synthesized ligand was tested for selectivity in the presence of several cations and was examined for possible utility as a chemosensor in real water samples. The results indicated sensing ability and selectivity for Cu, Fe, and V. Stable complexes were formed between SL and Cu, Fe, and V, and the ligand-to-metal binding stoichiometry was found 2 : 1 in the SL-Cu and SL-Fe complexes, and 1 : 1 in the SL-V complex. The results of LOD and bending constant were (7.03 M, 1.37 × 10 M), (5.16 M, 2.01 × 10 M), and (5.94 M, 1.82 × 10 M) for Cu, Fe, and V, respectively.
配体3-(-(2-羟基苯基亚氨基)甲基)-4H-色烯-4-酮(SL)已被合成，并基于比色分析作为水溶液中某些金属离子的化学传感器进行了研究。使用紫外-可见光谱监测颜色变化。基于紫外-可见吸光度和乔布氏图，通过滴定实验估算结合化学计量比和检测限(LOD)。对合成的配体在几种阳离子存在下的选择性进行了测试，并考察了其作为实际水样中化学传感器的可能用途。结果表明对铜、铁和钒具有传感能力和选择性。SL与铜、铁和钒形成了稳定的配合物，在SL-Cu和SL-Fe配合物中配体与金属的结合化学计量比为2∶1，在SL-V配合物中为1∶1。铜、铁和钒的检测限和弯曲常数结果分别为(7.03 M，1.37×10 M)、(5.16 M，2.01×10 M)和(5.94 M，1.82×10 M)。
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