کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1229309 | 1495212 | 2016 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A highly selective colorimetric and fluorescent chemosensor for Al(III) based-on simple naphthol in aqueous solution A highly selective colorimetric and fluorescent chemosensor for Al(III) based-on simple naphthol in aqueous solution](/preview/png/1229309.png)
• A new chemosensor for Al(III) was designed and fully characterized.
• The binding ratio of L–Al3 + was determined by the Job plot and MALDI-TOF MS data.
• L shows a large enhancement with turn-on 189-fold with Al3 +.
• It has lower detection limit.
A colorimetric and fluorescent chemosensor (L) for Al(III) was synthesized and fully characterized. L could be both used as a colorimetric and fluorescent chemosensor for the detection of Al3 + ions with low detection limit (8.87 × 10− 7 M) in CH3CN–H2O (1:1, v/v) solution. The binding ratio of L–Al3 + was determined from the Job plot (absorption and fluorescence spectra) and MALDI-TOF MS data to be 1:1. The binding constant (Ka) of Al3 + binding to L was calculated to be 4.8 × 105 M− 1 from a Benesi–Hildebrand plot. Moreover, the binding site of L with Al3 + was determined by 1H NMR titration experiment.
A new chemosensor for Al(III) showed effective colorimetric/fluorescent single selectivity and high sensitivity for Al3 + in aqueous solution. The binding ratio of L–Al3 + complexes was determined from the Job plot (absorption and fluorescence spectra) and MALDI-TOF MS data to be 1:1. Moreover, the binding site of L with Al3 + is determined by 1H NMR titration experiment.Figure optionsDownload as PowerPoint slide
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 157, 15 March 2016, Pages 6–10