Shabir Ghulam, Saeed Aamer, Channar Pervaiz Ali, Larik Fayaz Ali, AbdulFatah Tanzeela
Department of Chemistry, Quaid-I-Azam University, Islamabad, 45320, Pakistan.
J Fluoresc. 2017 Nov;27(6):2213-2221. doi: 10.1007/s10895-017-2162-7. Epub 2017 Aug 19.
A naked-eye colored chemodosimeteric probes 4a-f, based on Schiff-azo dye conjugates were synthesized and characterized. All compounds 4a-f exhibited excellent selectivity and high sensitivity in absorbance toward detection of Fe in alcoholic solutions under neutral pH conditions. The detection limit of the probe was shown to be up to 0.05 ppm. A simple paper test strip system for the rapid monitoring of Fe was developed, indicating their convenient use in environmental samples. Electrochemical analysis of metal free conjugates and iron chelated probes confirmed the chelation of ligands. Graphical Abstract.
合成并表征了基于席夫 - 偶氮染料共轭物的肉眼可见的比色化学计量探针4a - f。所有化合物4a - f在中性pH条件下对乙醇溶液中的铁检测在吸光度方面表现出优异的选择性和高灵敏度。该探针的检测限高达0.05 ppm。开发了一种用于快速监测铁的简单纸质测试条系统，表明它们在环境样品中使用方便。对无金属共轭物和铁螯合探针的电化学分析证实了配体的螯合作用。图形摘要。
