Smartphone-based colorimetric determination of fluoride anions using polymethacrylate optode
| Parent link: | Talanta Vol. 226.— 2021.— [122103, 5 p.] |
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| Körperschaft: | |
| Weitere Verfasser: | , , , , , , |
| Zusammenfassung: | Title screen We developed a new transparent polymer optode based on polymethacrylate with Zr(IV) and alizarin red complex immobilized into it for digital colorimetric and solid-phase spectrophotometric determination of fluoride anions. The matrix changes its colour from purple to yellow after it contacts fluoride anion. We developed a processing algorithm for coloured images which helps calculate mean value for the RGB colour-coordinate system in a selected optode image and translates it into a fluoride concentration value. The analytical signal of the suggested method has a linearity range of 0.1-30 mg•L-1 with the detection limit 0.03 mg•L-1. Compared to other methods, the modified polymethacrylate matrix is actually a ready-to-use colorimetric system offering rapid results for drinking water quality control. Режим доступа: по договору с организацией-держателем ресурса |
| Sprache: | Englisch |
| Veröffentlicht: |
2021
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| Schlagworte: | |
| Online-Zugang: | https://doi.org/10.1016/j.talanta.2021.122103 |
| Format: | Elektronisch Buchkapitel |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=665147 |
| Zusammenfassung: | Title screen We developed a new transparent polymer optode based on polymethacrylate with Zr(IV) and alizarin red complex immobilized into it for digital colorimetric and solid-phase spectrophotometric determination of fluoride anions. The matrix changes its colour from purple to yellow after it contacts fluoride anion. We developed a processing algorithm for coloured images which helps calculate mean value for the RGB colour-coordinate system in a selected optode image and translates it into a fluoride concentration value. The analytical signal of the suggested method has a linearity range of 0.1-30 mg•L-1 with the detection limit 0.03 mg•L-1. Compared to other methods, the modified polymethacrylate matrix is actually a ready-to-use colorimetric system offering rapid results for drinking water quality control. Режим доступа: по договору с организацией-держателем ресурса |
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| DOI: | 10.1016/j.talanta.2021.122103 |