Preparation of silica-magnetite nanoparticle mixed hemimicelle sorbents for extraction of several typical phenolic compounds from environmental water samples
文献类型：期刊论文
| 作者 | Zhao, Xiaoli ; Shi, Yali ; Wang, Thanh ; Cai, Yaqi ; Jiang, Guibin |
| 刊名 | JOURNAL OF CHROMATOGRAPHY A
 |
| 出版日期 | 2008-04-25 |
| 卷号 | 1188期号:2页码:140-147 |
| 关键词 | silica-coated magnetite nanoparticles mixed hemimicelles solid-phase extraction phenolic compounds |
| 英文摘要 | A novel type of superparamagnetic silica-coated (Fe3O4/SiO2 core/shell) magnetite nanoparticle modified by surfactants has been successfully synthesized and was applied as an effective sorbent material for the pre-concentration of several typical phenolic compounds (bisphenol A (BPA), 4-tert-octylphenol (4-OP) and 4-n-nonylphenol (4-NP)) from environmental water samples. Compared with pure magnetic particles, a thin and dense silica layer would protect the iron oxide core from leaching out in acidic conditions. In order to enhance their adsorptive tendency towards organic compounds, cetylpyridinium chloride (CPC) or cetyltrimethylammonium bromide (CTAB) were added, which adsorbed on the surface of the Fe3O4/SiO2 nanoparticles (Fe3O4/SiO2 NPs) and formed mixed hemimicelles. Main factors affecting the adsolubilization of analytes were optimized and comparative study on the use of CPC and CTAB-coated Fe3O4/SiO2 NPs mixed hemimicelles-based SPE was also carried out. CPC-coated Fe3O4/SiO2 NPs system was selected due to lower elution volume required and more effective adsorption of the target compounds. Under selected conditions, concentration factor of 1600 was achieved by using this method to extract 800 mL of different environmental water samples. The detection limits obtained for BPA, 4-OP and 4-NP with HPLC-FLD were 7, 14, and 20 ng/L, respectively. (C) 2008 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000255564500010 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/21982]  |
| 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 | Zhao, Xiaoli,Shi, Yali,Wang, Thanh,et al. Preparation of silica-magnetite nanoparticle mixed hemimicelle sorbents for extraction of several typical phenolic compounds from environmental water samples[J]. JOURNAL OF CHROMATOGRAPHY A,2008,1188(2):140-147. |
| APA | Zhao, Xiaoli,Shi, Yali,Wang, Thanh,Cai, Yaqi,&Jiang, Guibin.(2008).Preparation of silica-magnetite nanoparticle mixed hemimicelle sorbents for extraction of several typical phenolic compounds from environmental water samples.JOURNAL OF CHROMATOGRAPHY A,1188(2),140-147. |
| MLA | Zhao, Xiaoli,et al."Preparation of silica-magnetite nanoparticle mixed hemimicelle sorbents for extraction of several typical phenolic compounds from environmental water samples".JOURNAL OF CHROMATOGRAPHY A 1188.2(2008):140-147. |
入库方式： OAI收割
来源：生态环境研究中心
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