AI Article Synopsis
- The study tested Octolig®, a material designed to remove NSAIDs from water, focusing on its ability to target NSAIDs with anionic functional groups.
- Six specific NSAIDs were selected for testing, all having aromatic carboxylic groups, including diclofenac and naproxen.
- The removal process showed up to 90% effectiveness in deionized water at a neutral pH, although fenoprofen had lower removal rates due to interference from bicarbonate ions in well water.
Article Abstract
The possibility of removing representative nonsteroidal anti-inflammatory drugs (NSAIDs) from water was tested using Octolig®, a commercially available material with polyethylenediimine moieties covalently attached to high-surface area silica gel. The effectiveness of removal should depend on selected NSAIDs having appropriate anionic functional groups. NSAIDs selected had aromatic carboxylic groups: diclofenac, fenoprofen, indomethacin, ketoprofen, mefenamic acid, naproxen, and sulindac. These substances in deionized (DI) water were removed by passage over Octolig columns with removal values approaching 90% at environmental pH values, e.g., ca pH 6. Fenoprofen, however, was only removed to an extent of 80% in DI water and 62% in well water, presumably a result of competition with bicarbonate ions.
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| http://dx.doi.org/10.1080/10934529.2015.1087755 | DOI Listing |
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