Determination of decabromodiphenyl ether in sediments using selective pressurized liquid extraction followed by GC-NCI-MS

Ethel Eljarrat; Agustina de la Cal; Damià Barceló

doi:10.1007/s00216-003-2220-7

Determination of decabromodiphenyl ether in sediments using selective pressurized liquid extraction followed by GC-NCI-MS

Anal Bioanal Chem. 2004 Feb;378(3):610-4. doi: 10.1007/s00216-003-2220-7. Epub 2003 Sep 25.

Authors

Ethel Eljarrat¹, Agustina de la Cal, Damià Barceló

Affiliation

¹ Department of Environmental Chemistry, IIQAB, CSIC, Jordi Girona 18-26, 08034 Barcelona, Spain. eeeqam@cid.csic.es

PMID: 14513196
DOI: 10.1007/s00216-003-2220-7

Abstract

A method based on selective pressurized liquid extraction (SPLE) followed by gas chromatography-negative ion chemical ionization-mass spectrometry (GC-NCI-MS) has been evaluated for analysis of decabromodiphenyl ether (PBDE-209) in sediment samples. Instrumental operating conditions such as source temperature and system pressure were optimized in the NCI-MS system, giving an instrumental detection limit of 2 pg. The limit of determination of the entire SPLE-GC-NCI-MS procedure was around 50 pg g(-1) dry weight (dw), with repeatability of replicates between 4 and 21% relative standard deviation. Application of the method to 13 different river and marine sediment samples collected in Spain revealed that levels of decabromodiphenyl ether ranged between 2 and 132 ng g(-1) dry weight.