Premium
Solvent selection for pressurized liquid extraction of polymeric sorbents used in air sampling
Author(s) -
Primbs Toby,
Genualdi Susan,
Simonich Staci Massey
Publication year - 2008
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1897/07-566.1
Subject(s) - solvent , polyurethane , solubility , acetone , hexane , hildebrand solubility parameter , chemistry , copolymer , chromatography , extraction (chemistry) , polystyrene , aldrin , organic chemistry , polymer , pesticide , dieldrin , agronomy , biology
Pressurized liquid extraction (PLE) was evaluated as a method for extracting semivolatile organic compounds (SOCs) from air sampling media, including quartz fiber filter (QFF), polyurethane foam (PUF), and a polystyrene divinyl benzene copolymer (XAD‐2). Hansen solubility parameter plots were used to aid in the PLE solvent selection in order to both reduce coextraction of polyurethane and save time in evaluating solvent compatibility during the initial steps of method development. A PLE solvent composition of 75:25% hexane:acetone was chosen for PUF. The XAD‐2 copolymer was not solubilized under the PLE conditions used. The average percent PLE recoveries (and percent relative standard deviations) of 63 SOCs, including polycyclic aromatic hydrocarbons, polychlorinated biphenyls, and organochlorine, amide, triazine, thiocarbamate, and phosphorothioate pesticides, were 76.7 (6.2), 79.3 (8.1), and 93.4 (2.9)% for the QFF, PUF, and XAD‐2, respectively.