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dc.contributor.author马玉
dc.contributor.author邹西梅
dc.contributor.author林竹光
dc.date.accessioned2016-05-17T02:51:11Z
dc.date.available2016-05-17T02:51:11Z
dc.date.issued2009
dc.identifier.citation分析试验室,2009,(7):108-112
dc.identifier.issn1000-0720
dc.identifier.otherFXSY200907027
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/106244
dc.description.abstract将气相色谱-负离子化学源-质谱法(gC-nCI/MS)和气相色谱-电子捕获检测法(gC-ECd)应用于分析沉积物中6种多溴联苯醚(PbdES)和5种多溴联苯(PbbS)残留。沉积物样品以V(正己烷)∶V(丙酮)=1∶1作为提取剂,采用索式提取法,提取液经酸性硅胶和中性硅胶层析柱净化和正己烷洗脱后,以PCb-103为内标物和gC-nCI-MS的选择离子监测方式(SIM)进行定性与定量分析,PbdE-209则采用gC-ECd法分析。平均加标回收率为93.3%--110.8%,相对标准偏差为1.2%--8.6%,方法检测限均小于0.20μg/kg(PbdE-209的方法检测限是7.74μg/kg),相关系数都大于0.9990。所分析沉积物样品中均含有微量的PbdE-99、Pbb-49和PbdE-209。
dc.description.abstractSoxhlet extraction was developed for the determination of six polybrominated diphenyl ethers and five polybrominated biphenyls in sediment.Hexane/actone(1∶1, V/V) was used as the extraction solvent and hexane as elution solvent,after the extraction was cleaned by the cartridge filling with acidic and neutral silica gel,the analysis of samples was accomplished by using gas chromatography with negative chemical ionization mass spectrometric detection(GC-NCI/MS) in the selected ion monitoring mode(SIM) and gas chromatography-electron capture detector,and with PCB-103 as internal standard(IS).The average recoveries of the spiked-samples ranged from 93.3% to 110.8% with relative standard deviations between 1.2% and 8.6%,the detection limit(MDL) was smaller than 0.20 μg/kg (the MDL was 7.74 μg/kg for PBDE-209),and the correlation coefficients were larger than 0.9990.PBDE-99、 PBB-49 and PBDE-209 were detected in all sediments.
dc.language.isozh_CN
dc.subjectGC-NCI-MS
dc.subjectGC-ECD
dc.subject多溴联苯醚
dc.subject多溴联苯
dc.subject沉积物
dc.subjectGas chromatography-negative chemical ionization-mass spectrometry
dc.subjectGas chromatography-electron capture detector
dc.subjectPolybrominated diphenyl ethers
dc.subjectPolybrominated biphenyls
dc.subjectSediment
dc.title厦门近海沉积物中PBDEs与PBBs残留的GC-NCI/MS和GC-ECD分析
dc.title.alternativeDetermination of polybrominated diphenyl ethers and polybrominated biphenyls in sediment from Xiamen sea by gas chromatography-mass spectrometry-negative chemical ionization and gas chromatography-electron capture detector
dc.typeArticle


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