Rapid CE-UV binding tests of environmentally hazardous compounds with polymer-modified magnetic nanoparticles
| Autor: | Edward P. C. Lai, Zafar Iqbal, Samar Alsudir, Musharraf Miah |
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| Rok vydání: | 2011 |
| Předmět: |
Bisphenol A
Clinical Biochemistry engineering.material Polypyrrole Biochemistry Hazardous Substances Analytical Chemistry chemistry.chemical_compound Capillary electrophoresis Coating Phenols Polymethacrylic Acids Escherichia coli Benzhydryl Compounds Magnetite Nanoparticles Proflavine Chromatography Electrophoresis Capillary Receptor–ligand kinetics Electrophoresis chemistry Models Chemical engineering Magnetic nanoparticles Spectrophotometry Ultraviolet |
| Zdroj: | Electrophoresis. 32(16) |
| ISSN: | 1522-2683 |
| Popis: | Hazardous compounds and bacteria in water have an adverse impact on human health and environmental ecology. Polydopamine (or polypyrrole)-coated magnetic nanoparticles and polymethacrylic acid-co-ethylene glycol dimethacrylate submicron particles were investigated for their fast binding kinetics with bisphenol A, proflavine, naphthalene acetic acid, and Escherichia coli. A new method was developed for the rapid determination of % binding by sequential injection of particles first and compounds (or E. coli) next into a fused-silica capillary for overlap binding during electrophoretic migration. Only nanolitre volumes of compounds and particles were sufficient to complete a rapid binding test. After heterogeneous binding, separation of the compounds from the particles was afforded by capillary electrophoresis. % binding was influenced by applied voltage but not current flow. In-capillary coating of particles affected the % binding of compounds. |
| Databáze: | OpenAIRE |
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