Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5399249 | Journal of Luminescence | 2016 | 6 Pages |
Abstract
A new fluorescent optical sensor for highly sensitive and selective assessment of UO22+ in aqueous samples was introduced. The response of the sensor is based on the fluorescence quenching of [(+)-(S)-methyl 2-(2-chlorophenyl)-2-(6,7-dihydrothieno[3,2-c]pyridin-5(4H)-yl)acetate] (Clopidogrel) embedded in polymethylmethacrylate (PMMA) polymer by UO22+. The sensor displays; wide concentration range from 1.0Ã10â9 to 4.0Ã10â6 mol Lâ1, limit of detection (LOD) and limit of quantification (LOQ) are 2.6Ã10â10 and 7.8Ã10â10 mol Lâ1, respectively with a relatively fast response time of less than 60 s. The present sensor was revealed good response characteristics with respect to stability, reproducibility, sensitive and selectivity. Also, the response and quenching mechanisms for the present sensor were discussed.
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Authors
A.A. Elabd, M.S. Attia,