Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7611024 | Journal of Chromatography A | 2015 | 31 Pages |
Abstract
A simple and time-saving one pot synthesis of magnetic graphene/carbon nanotube composites (M-G/CNTs) was developed that could avoid the tedious drying process of graphite oxide, and G/CNTs were modified by Fe3O4 nanoparticles in the reduction procedure. It contributed to a shorten duration of the synthesis process of M-G/CNTs. The obtained M-G/CNTs were characterized and the results indicated that CNTs and Fe3O4 nanoparticles were served as spacer distributing to the layers of graphene, which was beneficial for enlarging surface area and improving extraction efficiency. Moreover, M-G/CNTs showed good magnetic property and outstanding thermal stability. Then M-G/CNTs were applied as adsorbent of magnetic dispersive solid-phase extraction for rapid extraction and determination of oxytetracycline in sewage water. Under the optimum conditions, good linearity was obtained in the range of 20-800 ng mLâ1 and the recoveries were ranged from 95.5% to 112.5% with relative standard deviations less than 5.8%.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Yunyun Sun, Jing Tian, Lu Wang, Hongyuan Yan, Fengxia Qiao, Xiaoqiang Qiao,