Abstract
We report a sensitive method for the determination of 15 aromatic amines in environmental water samples. They have been included in the list of priority pollutants in surface water by the European Union. The method is based on analyte enrichment using microextraction by packed sorbent (MEPS) and later analysis using programmed temperature vaporizer–gas chromatography–mass spectrometry (PTV-GC-MS). All MEPS steps were carried out manually. The detection limits were of the order of nanograms per liter for most of the compounds. The results were compared with those obtained without MEPS using the method exclusively based on direct injection of the sample into the PTV-GC-MS. External calibration in ultrapure water was used in the determination of the compounds studied in five types of water samples (sea, river, tap, influent, and effluent waste water) since no significant matrix effect was found. The results obtained can be considered highly satisfactory and they revealed the presence of aniline in the sea and the influent and effluent waste water samples.
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Acknowledgments
We acknowledge the financial support of the DGI (Project CTQ2010-17514/BQU) and the Consejería de Educación y Cultura of the Junta de Castilla y León (GR87) for this research.
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del Nogal Sánchez, M., Pérez Sappó, C., Pérez Pavón, J.L. et al. A method based on microextraction by packed sorbent-programmed temperature vaporizer–fast gas chromatography–mass spectrometry for the determination of aromatic amines in environmental water samples. Anal Bioanal Chem 404, 2007–2015 (2012). https://doi.org/10.1007/s00216-012-6303-1
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DOI: https://doi.org/10.1007/s00216-012-6303-1