PMID- 22344557 OWN - NLM STAT- MEDLINE DCOM- 20120608 LR - 20161125 IS - 1464-0333 (Electronic) IS - 1464-0325 (Linking) VI - 14 IP - 3 DP - 2012 Mar TI - Development of a new automated clean-up system for the simultaneous analysis of polychlorinated dibenzo-p-dioxins (PCDDs), dibenzofurans (PCDFs) and 'dioxin-like' polychlorinated biphenyls (dl-PCB) in flue gas emissions by GPC-SPE. PG - 1082-90 LID - 10.1039/c2em10881j [doi] AB - A comprehensive clean-up method for quantitative analysis of polychlorinated biphenyls (PCBs) and polychlorinated dibenzo-p-dioxins and dibenzo-furans (PCDD/Fs) in one single extract of environmental samples was developed. Since the chemical nature and toxicity of planar PCBs are similar to those of PCDD/Fs, dioxin-like PCBs and PCDD/Fs are often surveyed together in their exposure assessments. The development of a method for the simultaneous analysis of PCBs and PCDD/Fs in environmental samples is invaluable. The automated clean-up system evaluated in this work consists of three additional steps after traditional extraction: the chromatography on gel permeation (GPC), the concentration of the solvent through the use of an in-line evaporation module and the further purification and separation of PCDDs/Fs and dl-PCBs on an alumina cartridge in the 'SPE module'. In this work, three fly ash samples from an interlaboratory study with different PCDD/F and PCB levels were Soxhlet-extracted and then cleaned up using an automated system. PCDD/Fs and PCBs were determined using isotope dilution and high resolution gas chromatography/high resolution mass spectrometry. The determined values of 17 PCDD/Fs were consistent with the certified values and the relative standard deviations (RSDs) of the determined values were less than 20%. The recoveries of (13)C labeled PCDD/Fs and planar PCBs, and their RSDs were within the ranges specified in EPA1613 and 1668a methods, respectively. An accurate and reliable method was successfully developed and can be used in the simultaneous analysis of PCDD/Fs and planar PCBs in environmental samples. CI - This journal is (c) The Royal Society of Chemistry 2012 FAU - Rossetti, Gianluca AU - Rossetti G AD - Italian National Research Council-Institute for Atmospheric Pollution Research (CNR-IIA), Via Salaria km 29, 300 Monterotondo, Rome, Italy. FAU - Mosca, Silvia AU - Mosca S FAU - Guerriero, Ettore AU - Guerriero E FAU - Rotatori, Mauro AU - Rotatori M LA - eng PT - Journal Article DEP - 20120217 PL - England TA - J Environ Monit JT - Journal of environmental monitoring : JEM JID - 100968688 RN - 0 (Air Pollutants) RN - 0 (Benzofurans) RN - 0 (Dibenzofurans, Polychlorinated) RN - 0 (Polychlorinated Dibenzodioxins) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Air Pollutants/*analysis/chemistry MH - Benzofurans/*analysis/chemistry MH - *Chromatography, Gel MH - Dibenzofurans, Polychlorinated MH - Environmental Monitoring/methods MH - Polychlorinated Biphenyls/*analysis/chemistry MH - Polychlorinated Dibenzodioxins/*analogs & derivatives/analysis/chemistry MH - *Solid Phase Extraction EDAT- 2012/02/22 06:00 MHDA- 2012/06/09 06:00 CRDT- 2012/02/21 06:00 PHST- 2012/02/21 06:00 [entrez] PHST- 2012/02/22 06:00 [pubmed] PHST- 2012/06/09 06:00 [medline] AID - 10.1039/c2em10881j [doi] PST - ppublish SO - J Environ Monit. 2012 Mar;14(3):1082-90. doi: 10.1039/c2em10881j. Epub 2012 Feb 17.