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Quantitative analysis of polybrominated diphenyl ethers in earthworms and soil by gas chromatography coupled to ion‐trap tandem mass spectrometry
Author(s) -
Zhu Lingyan,
Ma Baoling,
Liang Xianwei
Publication year - 2008
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.3374
Subject(s) - chemistry , polybrominated diphenyl ethers , ion trap , tandem mass spectrometry , mass spectrometry , chromatography , dissociation (chemistry) , analytical chemistry (journal) , ion , polyatomic ion , environmental chemistry , pollutant , organic chemistry
A method coupling gas chromatography to ion‐trap tandem mass spectrometry (GC/ITMS) was developed and optimized for the analysis of polybrominated diphenyl ethers (PBDEs) in soil and earthworms. It was found that the molecular ion [M] + cluster provided better performance than the [M‐2Br] + as a collision‐induced dissociation (CID) precursor ion for most congeners when considering sensitivity, specificity and potential interference from complicated matrices. Other parameters such as the resonant excitation voltage, ‘q’ value, were also optimized. To evaluate the suitability of the ITMS method, the optimized method was applied for the analysis of PBDEs in different samples including earthworms and soil, and its performance was compared with that of selected ion monitoring (SIM). It was found that ITMS offered higher sensitivity than SIM when analyzing real environmental samples. Copyright © 2008 John Wiley & Sons, Ltd.