Hemimicelles/admicelles supported on magnetic graphene sheets for enhanced magnetic solid-phase extraction
文献类型：期刊论文
| 作者 | Liu, Qian ; Shi, Jianbo ; Thanh Wang ; Guo, Feng ; Liu, Lihong ; Jiang, Guibin |
| 刊名 | Biochemistry & Molecular Biology; Chemistry
 |
| 出版日期 | 2012 |
| 卷号 | 1257期号:1页码:1-8 |
| 关键词 | Graphene Solid-phase extraction Hemimicelles/admicelles Perfluoroalkyl and polyfluoroalkyl substances Alkyltrimethylammonium salt |
| ISSN号 | 0021-9673 |
| 中文摘要 | In this work, superparamagnetic nanoparticle-decorated graphene (MG) sheets were synthesized and used as support for hemimicelles/admicelles for solid-phase extraction (SPE) of different compounds from environmental water samples for the first time. The MG sheets were facilely synthesized by a one-step, one-pot redox reaction between graphene oxide and Fe(I I). Due to the large surface area and unique nanosheet morphology, MG served as an excellent nano-scaled support material for hemimicelles and admicelles. exhibiting higher loading capacity than conventional materials and pure Fe3O4 nanoparticles. The MG sheets could be negatively or positively charged depending on solution pH, allowing the extraction to be conducted in different modes. In cationic mode, cetyltrimethylammonium bromide (CTAB) was used as micelle-forming reagent, and perfluoroalkyl and polyfluoroalkyl substances (PFASs) and alkylphenols were used as model analytes. In anionic mode, sodium dodecyl sulfate (SDS) was used as micelle-forming reagent and alkyltrimethylammonium salts were selected as analytes. In both modes, the formation processes of hemimicelles/admicelles on MG sheets were studied and the extraction conditions were optimized. For PFASs, the analytical sensitivity was enhanced by 50-113-fold by the extraction, and the method detection limits (MDLs) ranged from 0.15 to 0.50 ng/L. For alkyltrimethylammonium salts, the MDLs were in the range of 1.4-8.0 ng/L. In both modes, good recoveries (56.3-93.9%) and reproducibility (run-to-run RSDs < 9.3%) were obtained. The results from this work show a potential new role of graphene in analytical sample preparation. (C) 2012 Elsevier B.V. All rights reserved. |
| WOS记录号 | WOS:000309087200001 |
| 公开日期 | 2014-11-27 |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/8055]  |
| 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 | Liu, Qian,Shi, Jianbo,Thanh Wang,et al. Hemimicelles/admicelles supported on magnetic graphene sheets for enhanced magnetic solid-phase extraction[J]. Biochemistry & Molecular Biology; Chemistry,2012,1257(1):1-8. |
| APA | Liu, Qian,Shi, Jianbo,Thanh Wang,Guo, Feng,Liu, Lihong,&Jiang, Guibin.(2012).Hemimicelles/admicelles supported on magnetic graphene sheets for enhanced magnetic solid-phase extraction.Biochemistry & Molecular Biology; Chemistry,1257(1),1-8. |
| MLA | Liu, Qian,et al."Hemimicelles/admicelles supported on magnetic graphene sheets for enhanced magnetic solid-phase extraction".Biochemistry & Molecular Biology; Chemistry 1257.1(2012):1-8. |
入库方式： OAI收割
来源：生态环境研究中心
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