| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 176587 | Dyes and Pigments | 2013 | 6 Pages |
Abstract
A novel ratiometric fluorescent sensor bearing two benzimidazole groups has been synthesized. The sensor showed a ratiometric fluorescence response with an enhancement of the ratios of emission intensities at 443 and 378 nm from 0.17 to 3.21 for Cr3+. The ratios of emission intensities at 443 and 380 nm were enhanced from 0.40 to 2.09 for Fe3+. Fe3+ revealed significant adsorption in the UV–vis region, which can be used to discriminate Cr3+ and Fe3+. Detection limits of the method for Cr3+ and Fe3+ were 25 μM and 2 μM, respectively. In addition, the sensor showed good selectivity to Cr3+ and Fe3+ over other metal ions.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Meng Wang, Jungang Wang, Weijian Xue, Anxin Wu,