Rapid, efficient and selective preconcentration of benzo[a]pyrene (BaP) by molecularly imprinted composite cartridge and HPLC
| Autor: | Adil Denizli, Lokman Uzun, Mehmet Emin Çorman, Canan Armutcu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Polymers Centrifugation Bioengineering 02 engineering and technology 01 natural sciences High-performance liquid chromatography Molecular Imprinting Biomaterials chemistry.chemical_compound Cartridge Spectroscopy Fourier Transform Infrared Benzo(a)pyrene Fourier transform infrared spectroscopy Chromatography High Pressure Liquid Fluoranthene Detection limit Chromatography 010401 analytical chemistry Temperature Hydrogen-Ion Concentration 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry Mechanics of Materials Pyrene Salts Adsorption 0210 nano-technology Molecular imprinting |
| Zdroj: | Materials Science and Engineering: C. 70:41-53 |
| ISSN: | 0928-4931 |
| Popis: | In this study, cryogel-based molecularly imprinted composite cartridges were designed for the rapid, efficient, and selective preconcentration of benzo[ a ]pyrene (BaP) from water samples. First, a BaP-imprinted poly(2-hydroxyethyl methacrylate-N-methacryloyl-(L)-phenylalanine) composite cartridge was synthesized under semi-frozen conditions and characterized by scanning electron microscopy, elemental analysis, Fourier transform infrared spectroscopy, and swelling tests. After the optimization of preconcentration parameters, i.e., pH and initial BaP concentration, the selectivity and preconcentration efficiency, and reusability of these cartridges were also evaluated. In selectivity experiments, BaP imprinted composite cartridge exhibited binding capacities 3.09, 9.52, 8.87, and 8.77-fold higher than that of the non-imprinted composite cartridge in the presence of competitors, such as benzo[ b ]fluoranthene (BbF), benzo[ k ]fluoranthene (BkF), indeno[1,2,3- cd ]pyrene (IcdP), and 1-naphthol, respectively. The method detection limit (MDL), relative standard deviation (RSD) and preconcentration efficiency (PE) of the synthesized composite cartridge were calculated as 24.86 μg/L, 1.60%, and 349.6%, respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect