Preparation of stir bars for sorptive extraction using sol-gel technology
文献类型：期刊论文
| 作者 | Liu, WM; Wang, HM; Guan, YF |
| 刊名 | journal of chromatography a
 |
| 出版日期 | 2004-08-06 |
| 卷号 | 1045期号:1-2页码:15-22 |
| 关键词 | sol-gel stir bar sorptive extraction supersonic sorptive extraction extraction methods alkanes polynuclear aromatic hydrocrabons pesticides organophosphorus compounds |
| 产权排序 | 1;1 |
| 英文摘要 | a sol-gel coating method for the preparation of extractive phase on bars used in sorptive microextraction is described. the extraction phase of poly(dimethylsiloxane) is partially crosslinked with the sol-gel network, and the most part is physically incorporated in the network. three aging steps at different temperatures are applied to complete the crosslinking process. thirty-micrometer-thick coating layer is obtained by one coating process. the improved coating shows good thermal stability up to 300degreesc. spiked aqueous samples containing n-alkanes, polycyclic aromatic hydrocarbons and organophosphorus pesticides were analyzed by using the sorptive bars and gc. the results demonstrate that it is suitable for both aploar and polar analytes. the detection limit for chrysene is 7.44 ng/l, 0.74 ng/l for c-19 and 0.9 ng/l for phorate. the extraction equilibration can be reached in less than 15 min by supersonic extraction with the bars of 30 mum coating layer. (c) 2004 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; life sciences & biomedicine ; physical sciences |
| 类目[WOS] | biochemical research methods ; chemistry, analytical |
| 研究领域[WOS] | biochemistry & molecular biology ; chemistry |
| 关键词[WOS] | microcolumn-liquid-chromatography ; capillary gas-chromatography ; phase microextraction ; mass-spectrometry ; stationary-phase ; pesticide-residues ; aqueous samples ; water samples ; fibers ; electrochromatography |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000223212000002 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/81693]  |
| 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, Dept Analyt Chem & Microinstrumentat, Dalian 116012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, WM,Wang, HM,Guan, YF. Preparation of stir bars for sorptive extraction using sol-gel technology[J]. journal of chromatography a,2004,1045(1-2):15-22. |
| APA | Liu, WM,Wang, HM,&Guan, YF.(2004).Preparation of stir bars for sorptive extraction using sol-gel technology.journal of chromatography a,1045(1-2),15-22. |
| MLA | Liu, WM,et al."Preparation of stir bars for sorptive extraction using sol-gel technology".journal of chromatography a 1045.1-2(2004):15-22. |
入库方式： OAI收割
来源：大连化学物理研究所
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