Application of carbon nanotubes as solid-phase extraction sorbent for analysis of chlorophenols in water samples

Marek Gołębiowski , Piotr Stepnowski , Danuta Leszczyńska

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.
Author Marek Gołębiowski PAZN
Marek Gołębiowski,,
- Laboratory of Analysis of Natural Compounds
, Piotr Stepnowski PChZŚ
Piotr Stepnowski,,
- Laboratory of Chemical Environmental Risks
, Danuta Leszczyńska
Danuta Leszczyńska,,
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Journal seriesChemical Papers, ISSN 0366-6352
Issue year2017
Vol71
No4
Pages831-839
Publication size in sheets0.5
Keywords in Englishchlorophenols, MWCNTs, solid-phase extraction (SPE), GC/MS
DOIDOI:10.1007/s11696-016-0098-z
Languageen angielski
Score (nominal)20
ScoreMinisterial score = 20.0, 20-12-2017, ArticleFromJournal
Ministerial score (2013-2016) = 20.0, 20-12-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 1.258 (2) - 2016=1.194 (5)
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