| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1303603 | Inorganic Chemistry Communications | 2014 | 4 Pages |
•A colorimetric sensor for Mn2 + and Fe2 + was designed and synthesized.•It can be used to detect Mn2 + and Fe2 + ions over other cations.•Detection limits for Mn2 + and Fe2 + were 7.11 μM and 0.14 μM, respectively.
We have synthesized a new Schiff base 1 having julolidine moiety, which detects Mn2 + and Fe2 + through naked eye in aqueous solution. The sensor 1 exhibited significant color changes from pale yellow to orange for Mn2 + and to dark green for Fe2 +. The complex formations were proposed to be 1:1 ratio, based on Job plot and ESI-mass spectrometry analysis. The detection limits of Mn2 + and Fe2 + were found to be 7.11 μM and 0.14 μM, respectively, which are below the WHO acceptable limits (manganese: 7.28 μM and iron: 5.36 μM) in drinking water.
Graphical abstractWe have synthesized a new Schiff base 1 having julolidine moiety, which detects Mn2 + and Fe2 + through naked eye in aqueous solution. The sensor 1 exhibited significant color changes from pale yellow to orange for Mn2 + and to dark green for Fe2 +. The complex formations were proposed to be 1:1 ratio, based on Job plot and ESI-mass spectrometry analysis.Figure optionsDownload full-size imageDownload as PowerPoint slide
