Development of a solid-phase microextraction fiber by chemical binding of polymeric ionic liquid on a silica coated stainless steel wire
文献类型：期刊论文
| 作者 | Pang, Long ; Liu, Jing-Fu |
| 刊名 | Biochemistry & Molecular Biology; Chemistry
 |
| 出版日期 | 2012 |
| 卷号 | 1230期号:1页码:8-14 |
| 关键词 | Polymeric ionic liquid Solid-phase microextraction Polycyclic aromatic hydrocarbons Fiber coating |
| ISSN号 | 0021-9673 |
| 中文摘要 | A novel approach was developed for the fabrication of solid-phase microextraction (SPME) fiber by coating stainless steel fiber with a polymeric ionic liquid (PIL) through covalent bond. The stainless steel fiber was sequentially coated with a gold film by replacement reaction between Fe and Au when immerged in chloroauric acid, assembled with a monolayer of 3-(mercaptopropyl) triethoxysilane on the gold layer through the Au-S bond, and coated with a silica layer by the hydrolysis and polycondensation reaction of the surface-bonded siloxane moieties and the active silicate solution. Then, 1-vinyl-3-(3-triethoxysilylpropyl)-4,5-dihydroimidazolium chloride ionic liquid was anchored on the silica layer by covalent bond, and the PIL film was further formed by free radical copolymerization between 1-vinyl-3-(3-triethoxysilylpropyl)-4,5-dihydroimidazdium and vinyl-substituted imidazolium with azobisisobutyronitrile (AIBN) as initiator. Parameters influencing the preparation of PIL fiber were optimized, and the developed SPME fiber has a coating thickness of similar to 20 mu m with good thermal stability and long lifetime. The performance of the PIL fiber was evaluated by analysis of polycyclic aromatic hydrocarbons (PAHs) in water samples. The developed PIL fiber showed good linearity between 0.5 and 20 mu g l(-1) with regression coefficient in the range of 0.963-0.999, detection limit ranging from 0.05 to 0.25 mu g l(-1), and relative standard deviation of 9.2-29% (n = 7). This developed PIL fiber exhibited comparable analytical performance to commercial 7 p,m thickness PDMS fiber in the extraction of PAHs. The spiked recoveries for three real water samples at 0.5-5 mu g l(-1) levels were 49.6-111% for the PIL fiber and 40.8-103% for the commercial PDMS fiber. (C) 2012 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000301959700002 |
| 公开日期 | 2014-11-27 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8041]  |
| 专题 | 生态环境研究中心_环境化学与生态毒理学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Pang, Long,Liu, Jing-Fu. Development of a solid-phase microextraction fiber by chemical binding of polymeric ionic liquid on a silica coated stainless steel wire[J]. Biochemistry & Molecular Biology; Chemistry,2012,1230(1):8-14. |
| APA | Pang, Long,&Liu, Jing-Fu.(2012).Development of a solid-phase microextraction fiber by chemical binding of polymeric ionic liquid on a silica coated stainless steel wire.Biochemistry & Molecular Biology; Chemistry,1230(1),8-14. |
| MLA | Pang, Long,et al."Development of a solid-phase microextraction fiber by chemical binding of polymeric ionic liquid on a silica coated stainless steel wire".Biochemistry & Molecular Biology; Chemistry 1230.1(2012):8-14. |
入库方式： OAI收割
来源：生态环境研究中心
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