کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
176376 | 458941 | 2013 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A naphtholic Schiff base for highly selective sensing of cyanide via different channels in aqueous solution A naphtholic Schiff base for highly selective sensing of cyanide via different channels in aqueous solution](/preview/png/176376.png)
• A 2-hydroxynaphthaldehyde-aminobenzimidazole Schiff base sensor shows both colorimetric and fluorescence response for CN−.
• The sensor was designed with ease of synthesis and low cost.
• The sensor has good selectivity to CN− even in the presence of other anions.
• Test strips of the sensor were fabricated and exhibited a selectivity to CN−.
A simple CN− sensor bearing a naphthol and an imine group was designed and synthesized, which showed both a colorimetric and a fluorescence turn-on response for cyanide ions in aqueous solution. The probe shows an immediate visible change in color from yellow to orange which then becomes colorless followed by a final change to pink, when cyanide is added; these color changes can be readily observed visually. The mechanism of the reaction of the probe with the cyanide ion was established by using 1H NMR and FT-IR spectroscopy and mass spectrometry. Moreover, test strips based on the sensor were fabricated, which could act as a convenient and efficient CN− test kit.
A simple CN− sensor bearing a naphthol and an imine group was designed and synthesized, which showed both a colorimetric and a fluorescence turn-on response for cyanide ions in aqueous solution.Figure optionsDownload as PowerPoint slide
Journal: Dyes and Pigments - Volume 99, Issue 3, December 2013, Pages 857–862