PMID- 15729824 OWN - NLM STAT- MEDLINE DCOM- 20050705 LR - 20190720 IS - 0021-9673 (Print) IS - 0021-9673 (Linking) VI - 1064 IP - 1 DP - 2005 Jan 28 TI - Determination of odorous mixed chloro-bromoanisoles in water by solid-phase micro-extraction and gas chromatography-mass detection. PG - 97-106 AB - A headspace-solid-phase micro-extraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS) method has been proposed for the simultaneous determination of odorous trihalogenated anisoles in water. Parameters affecting efficiency of HS-SPME procedure, such as the selection of the SPME coating, extraction time, temperature and ionic strength were optimized. The commercially available polydimethylsiloxane (PDMS 100 microm) fiber appears to be the most suitable for the simultaneous determination of these compounds. Run-to-run precision with relative standard deviations (R.S.D.s) between 5 and 15% were obtained for most of the compounds except for 2,5-dicloro-6-bromo-anisole, 2,3-dibromo-6-chloroanisole, pentachloro- and pentabromoanisole (>20%). The method was linear over two orders of magnitude, and detection limits were compound dependent and ranged from 0.03 ng/L for 2,4,6-trichloroanisole to 0.25 ng/L for 2,3-dibromo-6-chloroanisole. The HS-SPME-GC-MS procedure was tested using real samples and relatively good standard deviations were obtained when using p-iodoanisole as internal standard for quantification. This is the first time that the individual identification of odorous trihalogenated chloro-bromoanisoles has been reported, being HS-SPME-GC-MS a suitable method for simultaneous determination of these compounds in water at concentration levels below their odor limit of detection. FAU - Diaz, Alfredo AU - Diaz A AD - AGBAR, Aigues de Barcelona, Passeig de Sant Joan 39, 08009 Barcelona, Spain. FAU - Ventura, Francesc AU - Ventura F FAU - Galceran, Maria Teresa AU - Galceran MT LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Anisoles) SB - IM MH - Anisoles/*analysis MH - Gas Chromatography-Mass Spectrometry/*methods MH - Water Supply/*analysis EDAT- 2005/02/26 09:00 MHDA- 2005/07/06 09:00 CRDT- 2005/02/26 09:00 PHST- 2005/02/26 09:00 [pubmed] PHST- 2005/07/06 09:00 [medline] PHST- 2005/02/26 09:00 [entrez] AID - S0021-9673(04)02259-9 [pii] AID - 10.1016/j.chroma.2004.12.027 [doi] PST - ppublish SO - J Chromatogr A. 2005 Jan 28;1064(1):97-106. doi: 10.1016/j.chroma.2004.12.027.