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Removal of pain-relieving drugs from aqueous solutions using Octolig and selected metalloligs
The possibility of removing certain pharmaceuticals (acetaminophen and naproxen) from water was tested using Octolig, a commercially available material with polyethylenediimine moieties covalently attached to high-surface area silica gel. In addition, the efficacy of two transition metals (cupric and ferric) derivatives of Octolig was tested. Previously amoxicillin had been successfully subjected to column chromatography for removal by means of ion encapsulation, the effectiveness of which would depend upon having appropriate anionic functional groups. Both pharmaceuticals were removed by passage over Octolig columns, though with less effectiveness than was achieved previously with xanthenylbenzenes or selected food dyes. Somewhat greater removal, ca 90%, was achieved using Cuprilig, the copper(II) derivative, but not with Ferrilig the iron(III) derivative, perhaps because the hydroxide counter ion was more closely associated with the transition metal ion and was not available to assist in proton removal.
Removal of pain-relieving drugs from aqueous solutions using Octolig and selected metalloligs
The possibility of removing certain pharmaceuticals (acetaminophen and naproxen) from water was tested using Octolig, a commercially available material with polyethylenediimine moieties covalently attached to high-surface area silica gel. In addition, the efficacy of two transition metals (cupric and ferric) derivatives of Octolig was tested. Previously amoxicillin had been successfully subjected to column chromatography for removal by means of ion encapsulation, the effectiveness of which would depend upon having appropriate anionic functional groups. Both pharmaceuticals were removed by passage over Octolig columns, though with less effectiveness than was achieved previously with xanthenylbenzenes or selected food dyes. Somewhat greater removal, ca 90%, was achieved using Cuprilig, the copper(II) derivative, but not with Ferrilig the iron(III) derivative, perhaps because the hydroxide counter ion was more closely associated with the transition metal ion and was not available to assist in proton removal.
Removal of pain-relieving drugs from aqueous solutions using Octolig and selected metalloligs
Martin, Dean F. (author) / Sehgal, Tanya (author) / Word, Tarah A. (author)
Journal of Environmental Science and Health, Part A ; 50 ; 788-793
2015-07-03
6 pages
Article (Journal)
Electronic Resource
English
Removal of pain-relieving drugs from aqueous solutions using Octolig and selected metalloligs
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