Application of carbon nanotubes as solid-phase extraction sorbent for analysis of chlorophenols in water samples |
| |
| Authors: | Marek Gołębiowski Piotr Stepnowski Danuta Leszczyńska |
| |
| Affiliation: | 1.Laboratory of Analysis of Natural Compounds, Faculty of Chemistry,University of Gdańsk,Gdańsk,Poland;2.Department of Civil and Environmental Engineering, Interdisciplinary Nanotoxicity Center,Jackson State University,Jackson,USA;3.Laboratory of Chemical Environmental Risks, Department of Environmental Analysis, Faculty of Chemistry,University of Gdańsk,Gdańsk,Poland |
| |
| Abstract: | The aim of this work was to investigate the efficiency of various MWCNTs as SPE materials for the preconcentration of chlorophenols. The COOH-functionalized MWCNTs and MWCNTs were used as SPE sorbents. To evaluate the capability of MWCNTs for the preconcentration of chlorophenols from water samples, 2,4-chlorophenol, 4-chlorophenol, 2,4,6-chlorophenol, 2,6-chlorophenol, 3,4-chlorophenol, and 2-chlorophenol were used as model compounds. Chlorophenols were extracted with acetone, methanol, ethanol, and dichloromethane, and determined by gas chromatography–mass spectrometry. COOH-functionalized MWCNTs <8 nm were found to be the best sorbent for the tested chlorophenols. For COOH-functionalized MWCNTs <8 nm, the recovery rates for all chlorophenols were higher than 50% when acetone or ethanol was used as eluents. In the case of dichloromethane elution, recovery rates for chlorophenols were from 62.0% for 2,6-DCP to 116.8% for 2,4-DCP; only for 2,4,6-TCP was the recovery rate 30.6%. Similar percentage recoveries were achieved with methanol as the eluent. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
