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Título

Analysis of polycyclic aromatic hydrocarbons in pine needles by gas chromatography–mass spectrometry. Comparison of different extraction and clean-up procedures

AutorRatola, Nuno; Lacorte Bruguera, Silvia; Alves, Arminda; Barceló, Damià
Palabras clavePolycyclic Aromatic Hydrocarbons (PAHs)
Pine needles
Soxhle
Ultrasonic extraction
Pressurized liquid extraction
Fecha de publicación18-abr-2006
EditorElsevier
CitaciónJournal of Chromatography A 1114(2): 198-204 (2006)
ResumenThree extraction methodologies (Soxhlet, ultrasonic and pressurized liquid extraction) and several clean-up procedures (Florisil, silica and alumina in cartridges or glass column format) were tested and compared to extract 16 US Environmental Protection Agency (EPA) polycyclic aromatic hydrocarbons (PAHs) from Pinus pinea L. needles. Quantification was done by gas chromatography with mass spectrometry, by internal standard method using five deuterated PAH surrogate standards. Among the several extraction and clean-up procedures tested, ultrasonic extraction followed by alumina cartridge clean-up was the preferred method, yielding recoveries between 72 and 100% and limits of detection between 0.22 and 0.71 ng/g dry weight. The performance of the method was tested to determine PAHs in naturally contaminated samples.
Descripción7 pages, 4 figures, 3 tables.-- PMID: 16620846 [PubMed].-- Printed version published May 12, 2006.-- Issue title: ExTech 2005 - 7th International Symposium on Advances in Extraction Technologies (Campinas, Brazil, Nov 13-15, 2005).
Versión del editorhttp://dx.doi.org/10.1016/j.chroma.2006.03.110
URIhttp://hdl.handle.net/10261/11738
DOI10.1016/j.chroma.2006.03.110
ISSN0021-9673
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