A Comparison of Different Techniques for Drying XAD-2 Resin and Glass Fiber Filters for the Isolation of Polycyclic Aromatic Hydrocarbons by Accelerated Solvent Extraction

Different drying procedures for XAD-2 resin (air-drying, oven-drying and drying under nitrogen steam) and glass fiber filters, GFFs (chemical drying with anhydrous sodium sulfate and freeze-drying) were applied and their unfluence studied with respect to the final percentages of recovery of 13 polycyclic aromatic hydrocarbons (PAHs) included in the European list of pollutants. The subsequent extraction of PAHs was achieved using accelerated solvent extraction (ASE) followed by gas-chromatography mass spectrometry analysis (GC-MS). The best drying procedure for spiked XAD-2 resin was found to be drying under nitrogen steam. Recoveries of the PAHs via this method were measures as 51% for naphthalene, 75% for phenanthrene and 91% for pyrene. On the other hand, chemical drying with anhydrous sodium sulfate was better drying procedure than freeze-drying for spiked GFFs by obtaining recoveries ranging from 60% for naphthalene to 103% for benzo(a)pyrene.

OLIVELLA Angels; 

2006-04-19

ASOC QUIMICOS

JRC32992

https://publications.jrc.ec.europa.eu/repository/handle/JRC32992,