Nanofiber polymers as novel sorbents for on-line solid phase extraction in chromatographic system: A comparison with monolithic reversed phase C18 sorbent
| Autor: | Dalibor Šatínský, Frantisek Svec, Petr Solich, Lucie Havlíková, Jiří Chvojka, Martina Háková |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
geography geography.geographical_feature_category Sorbent Chromatography Chemistry 010401 analytical chemistry Extraction (chemistry) 02 engineering and technology Polymer 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry 0104 chemical sciences Analytical Chemistry Nanofiber Polyamide Environmental Chemistry Sample preparation Solid phase extraction Monolith 0210 nano-technology Spectroscopy |
| Zdroj: | Analytica Chimica Acta. 1018:26-34 |
| ISSN: | 0003-2670 |
| DOI: | 10.1016/j.aca.2018.02.065 |
| Popis: | A novel application of nanofiber polymers in the wide area of a sample preparation techniques known as solid phase extraction has been studied. We demonstrated application of nanofibers as sorbents for use in a system including on-line extraction coupled with column-switching high performance liquid chromatography. Four types of nanofibers including polyamide 6 with two different surface densities, poly(ε-caprolactone), and polystyrene were tested. We found that three of them were very efficient extraction sorbents sufficiently stable for application in the on-line system. Our results confirmed that the extraction efficiency of the nanofibers depended on the type and chemistry of the spun polymer as well as on the fabrication process of the nanofibrous mats that affected their density, structure, surface density, and mechanical functionality. We also compared performance of all four nanofibers with a conventional monolithic reversed-phase C18 sorbent in terms of extraction efficiency using on-line solid-phase extraction-HPLC system. Polyamide 6 was found to be the best sorbent for lipophilic analytes with a retention and extraction efficiency for the target analytes comparable with that of the C18 monolith. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect