Development and application of a membrane assisted solvent extraction-molecularly imprinted polymer based passive sampler for monitoring of selected pharmaceuticals in surface water
| Autor: | Sinegugu Khulu, Somandla Ncube, Yannick Nuapia, Lawrence Mzukisi Madikizela, Elizabeth Mavhunga, Luke Chimuka |
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| Rok vydání: | 2022 |
| Předmět: |
Environmental Engineering
Ecological Modeling Venlafaxine Hydrochloride Water Ionic Liquids Pollution South Africa Carbamazepine Molecularly Imprinted Polymers Pharmaceutical Preparations Nevirapine Etilefrine Methocarbamol Waste Management and Disposal Water Pollutants Chemical Environmental Monitoring Water Science and Technology Civil and Structural Engineering |
| Zdroj: | Water Research. 225:119145 |
| ISSN: | 0043-1354 |
| Popis: | In this work, we demonstrate the development, evaluation and pre-liminary application of a novel passive sampler for monitoring of selected pharmaceuticals in environmental waters. The samplers were calibrated in laboratory-based experiments to obtain sampling rates (Rs) for carbamazepine, methocarbamol, etilefrine, venlafaxine and nevirapine. Passive sampling was based on the diffusion of the target pharmaceuticals from surface water through a membrane bag which housed an ionic liquid as a green receiving solvent and a molecularly imprinted polymer. Effects of biofouling, deployment time and solvent type for the receiver phase were optimized for selective uptake of analytes in surface water. Notably, there was a decrease in the uptake of selected pharmaceuticals and consequently a decrease in their sampling rates in the presence of biofouling. The optimum matrix-matched sampling rates ranged from 0.0007 - 0.0018 L d |
| Databáze: | OpenAIRE |
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