Journal
JOURNAL OF CHROMATOGRAPHY A
Volume 1218, Issue 14, Pages 1802-1807Publisher
ELSEVIER
DOI: 10.1016/j.chroma.2011.02.008
Keywords
Polymeric monolithic capillary; On-line thermal desorption; Gas chromatography; Polycyclic aromatic hydrocarbons; Water samples
Funding
- Spanish Ministry of Science and Innovation [CTQ2007-60426]
- Generalitat Valenciana
Ask authors/readers for more resources
A methacrylate-based monolithic capillary column has been evaluated for the preconcentration of polycyclic aromatic hydrocarbons (PAHs) from environmental water samples. For this purpose, the monolyte was in situ synthesized in a 6 cm x 0.32 mm id fused-silica capillary. The microextraction unit was fitted to a micro-H PLC pump to pass 10 mL of sample. The isolated pollutants were eluted by means of 10 mu L of methanol, the organic phase being directly collected in a specific interface that can be fitted to the injection port of the gas chromatograph without modification. The interface allows the on-line thermal desorption of the PAHs, avoiding the dilution and providing enough sensitivity to reach the legal limits established for these pollutants in the matrices selected. The limits of detection achieved for 10 mL of water ranged between 2.8 ng/L (indeno(1,2,3-cd)pyrene) and 11.5 ng/L (acenaphthene) with acceptable precision (between 4.5 and 18.2% RSD). The method was applied to the determination of the selected PAHs in tap, river waters and sewage, being fluoranthene and pyrene detected in all of them at concentrations lower than the legal limits established for these compounds in the matrices assayed. (C) 2011 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available