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Technical University of Crete
Technical University of Crete
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| URI: | http://purl.tuc.gr/dl/dias/8F66F3D6-BC71-4D5B-BBFB-37B480DEB131 | ||
| Year | 2006 | ||
| Type of Item | Peer-Reviewed Journal Publication | ||
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| Bibliographic Citation | D. Mekiki, N. Kalogerakis and E. Psillakis, "Application of solid-phase microextraction for the analysis of nitropolycyclic aromatic hydrocarbons in water," Chromatographia, vol. 63, no. 1-2, pp. 85-89, Jan. 2006. doi: 10.1365/s10337-005-0693-6 https://doi.org/10.1365/s10337-005-0693-6 | ||
| Appears in Collections |
The present work investigates the applicability of solid-phase microextraction coupled to gas-chromatography mass-spectrometry for the determination of trace amounts of nitropolycyclic aromatic hydrocarbons in water samples. The main parameters affecting solid-phase microextraction (sampling mode, fibre type, sampling time, agitation rate and ionic strength of the aqueous solution) were controlled and the optimal experimental conditions found were: 65-µm polydimethylsiloxane-divinylbenzene fibre immersed for 45 min to 5 mL spiked water samples, stirred at 1250 rpm. The developed solid-phase microextraction method was found to be linear in the concentration range 0.1 to 10 µg L−1, with the detection limits ranging between 0.004 and 0.060 µg L−1 (under the selective ion monitoring mode) and the repeatability varying between 1.7 and 5.9% (n=5). Analysis of spiked tap and well water samples revealed that matrix had little effect on extraction. Overall, it was found that solid-phase microextraction is suitable for the trace analysis of nitropolycyclic aromatic hydrocarbons in water samples.
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