PMID- 21616498 OWN - NLM STAT- MEDLINE DCOM- 20111003 LR - 20110708 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1218 IP - 30 DP - 2011 Jul 29 TI - Determination of per- and polyfluorinated substances in airborne particulate matter by microwave-assisted extraction and liquid chromatography-tandem mass spectrometry. PG - 4847-55 LID - 10.1016/j.chroma.2011.04.082 [doi] AB - A sensitive and confirmatory analytical method has been developed for the determination of 12 ionic per- and polyfluorinated alkyl substances (PFAS) in fine airborne particulate matter (PM2.5) at trace levels. The proposed method includes extraction of PM2.5-bound PFAS by microwave-assisted extraction (MAE) followed by centrifugation and injection into the liquid chromatograph coupled to a triple quadrupole tandem mass spectrometry system (LC-MS/MS). The main parameters affecting the performance of MAE were optimised using statistical design of experiments (DoE). Recoveries ranged from 83 to 120% and the method quantification limit (MQL) was 1.4 pg m(-3), when air volumes of 720 m(3) were sampled. This method was successfully applied to 41 samples collected from five stations of the monitoring network of the Valencian Regional Government (Spain) during April-July 2010. Eight out of 12 PFCs investigated were quantified in at least one sample (PFBA, PFPeA, PFHxS, 6:2 FTS, PFOA, PFNA, PFOS and PFDA). The measured concentrations ranged from 1.4 to 34.3 pg m(-3). CI - Copyright (c) 2011 Elsevier B.V. All rights reserved. FAU - Beser, Maria Isabel AU - Beser MI AD - Public Health Research Center of Valencia (CSISP), Valencia, Spain. FAU - Pardo, Olga AU - Pardo O FAU - Beltran, Joaquim AU - Beltran J FAU - Yusa, Vicent AU - Yusa V LA - eng PT - Journal Article DEP - 20110525 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Air Pollutants) RN - 0 (Fluorocarbons) RN - 0 (Particulate Matter) SB - IM MH - Air Pollutants/*analysis MH - Chemical Fractionation/*methods MH - Chromatography, Liquid/*methods MH - Fluorocarbons/*analysis/chemistry/isolation & purification MH - Linear Models MH - Microwaves MH - Particulate Matter/*chemistry MH - Reproducibility of Results MH - Sensitivity and Specificity MH - Tandem Mass Spectrometry/methods EDAT- 2011/05/28 06:00 MHDA- 2011/10/04 06:00 CRDT- 2011/05/28 06:00 PHST- 2010/10/22 00:00 [received] PHST- 2011/02/07 00:00 [revised] PHST- 2011/04/26 00:00 [accepted] PHST- 2011/05/28 06:00 [entrez] PHST- 2011/05/28 06:00 [pubmed] PHST- 2011/10/04 06:00 [medline] AID - S0021-9673(11)00608-X [pii] AID - 10.1016/j.chroma.2011.04.082 [doi] PST - ppublish SO - J Chromatogr A. 2011 Jul 29;1218(30):4847-55. doi: 10.1016/j.chroma.2011.04.082. Epub 2011 May 25.