色谱Issue(10)：1071-1079,9.DOI:10.3724/SP.J.1123.2015.05018
同位素稀释-高分辨气相色谱／高分辨质谱法测定大气中多溴联苯醚和多溴联苯153
Determination of atmospheric polybrominated diphenyl ethers and polybrominated biphenyl 153 using isotope dilution-high resolution gas chromatography/high resolution mass spectrometry
摘要
Abstract
Considering the features and demands of the environmental monitoring,an isotope dilution-high resolution gas chromatography/high resolution mass spectrometry method was developed for the determination of polybrominated diphenyl ethers( PBDEs)and polybrominat-ed biphenyls 153( BB153)in the ambient air. PBDEs and BB153 were extracted using an accel-erated solvent extraction apparatus with a mixture of hexane-dichloromethane( v/v,1:1)and hexane,respectively. The concentrated extracts were loaded on the composite silica gel column for cleanup. The mean recoveries of native compounds at 10% and 90% of the highest levels of calibration curves were 100% and 104% with 5% and 6% of the mean relative standard devia-tions(n=7),respectively. The recoveries of 13C labeled surrogates for di- to deca-brominated diphenyl ethers and BB153 were in the range of 36. 5%-133%. However,the recoveries of 13C-monobrominated diphenyl ethers were relatively low ,maybe due to the different physicochemi-cal properties compared with the other homologues. No breakthrough of pollutants was esti-mated under real sampling volume of 300 m 3 . The limits of detection were lower than 2 × 10-4 ng/Nm3. The recoveries of 13C labeled surrogates were between 56% and 126%, except monoBDEs. The results demonstrated that the method is suitable for the analysis of di- to deca-brominated diphenyl ethers and BB153 in the ambient air with precise quantification.关键词
同位素稀释-高分辨气相色谱/高分辨质谱/多溴联苯醚/多溴联苯153/大气/环境监测Key words
isotope dilution-high resolution gas chromatography/high resolution mass spectrometry/polybrominated diphenyl ethers (PBDEs )/polybrominated biphenyls 153 (BB153)/ambient air/environmental monitoring分类
化学化工引用本文复制引用
郑晓燕,于建钊,许秀艳,于海斌,陈烨,谭丽,吕怡兵..同位素稀释-高分辨气相色谱／高分辨质谱法测定大气中多溴联苯醚和多溴联苯153[J].色谱,2015,(10):1071-1079,9.基金项目
国家自然科学基金项目（41101476）． （）
