Optimized cleanup method for the determination of short chain polychlorinated n-alkanes in sediments by high resolution gas chromatography/electron capture negative ion-low resolution mass spectrometry
文献类型：期刊论文
| 作者 | Gao, Yuan; Zhang, Haijun; Chen, Jiping; Zhang, Qing; Tian, Yuzeng; Qi, Peipei; Yu, Zhengkun |
| 刊名 | analytica chimica acta
 |
| 出版日期 | 2011-10-10 |
| 卷号 | 703期号:2页码:187-193 |
| 关键词 | Short chain polychlorinated n-alkanes Silica gel Alumina Column chromatography Cleanup |
| 英文摘要 | the performances of three adsorbents, i.e. silica gel, neutral and basic alumina, in the separation of short chain polychlorinated n-alkanes (spcas) from potential interfering substances such as polychlorinated biphenyls (pcbs) and organochlorine pesticides were evaluated. to increase the cleanup efficiency, a two-step cleanup method using silica gel column and subsequent basic alumina column was developed. all the pcb and organochlorine pesticides could be removed by this cleanup method. the very satisfying cleanup efficiency of spcas has been achieved and the recovery in the cleanup method reached 92.7%. the method detection limit (mdl) for spcas in sediments was determined to be 14 ng g(-1). relative standard deviation (r.s.d.) of 5.3% was obtained for the mass fraction of spcas by analyzing four replicates of a spiked sediment sample. high resolution gas chromatography/electron capture negative ion-low resolution mass spectrometry (hrgc/ecni-lrms) was used for spcas quantification by monitoring [m-hcl](center dot-) ions. when applied to the sediment samples from the mouth of the daliao river, the optimized cleanup method in conjunction with hrgc/ecni-lrms allowed for highly selective identifications for spcas. the spcas levels in sediment samples are reported to range from 53.6 ng g(-1) to 289.3 ng g(-1). c(10)-and c(11)-pcas are the dominant residue in most of investigated sediment samples. (c) 2011 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, analytical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | column gc/ecni-ms ; chlorinated paraffins ; environmental-samples ; lake-ontario ; quantification ; ionization ; toxaphene ; standard ; pcbs |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000295704300010 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142459]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Yuan,Zhang, Haijun,Chen, Jiping,et al. Optimized cleanup method for the determination of short chain polychlorinated n-alkanes in sediments by high resolution gas chromatography/electron capture negative ion-low resolution mass spectrometry[J]. analytica chimica acta,2011,703(2):187-193. |
| APA | Gao, Yuan.,Zhang, Haijun.,Chen, Jiping.,Zhang, Qing.,Tian, Yuzeng.,...&Yu, Zhengkun.(2011).Optimized cleanup method for the determination of short chain polychlorinated n-alkanes in sediments by high resolution gas chromatography/electron capture negative ion-low resolution mass spectrometry.analytica chimica acta,703(2),187-193. |
| MLA | Gao, Yuan,et al."Optimized cleanup method for the determination of short chain polychlorinated n-alkanes in sediments by high resolution gas chromatography/electron capture negative ion-low resolution mass spectrometry".analytica chimica acta 703.2(2011):187-193. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。