期刊
NEW JOURNAL OF CHEMISTRY
卷 39, 期 7, 页码 5621-5627出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nj00859j
关键词
-
资金
- Ferdowsi University of Mashhad, Iran
A novel nano-adsorbent, magnetic carbon nanofibers (CNFs-Fe3O4), was prepared by impregnating magnetic Fe3O4 nanoparticles onto the surfaces of carbon nanofibers based on electrostatic interactions. The resulting nanoparticles were used as an adsorbent for the magnetic solid phase extraction of polycyclic aromatic hydrocarbons from environmental water samples. The experimental parameters affecting the extraction efficiency, including the amount of sorbent, desorption conditions, extraction time and salt concentration, were investigated and optimized. Under the optimal conditions, the detection limits of the method (S/N = 3) were in the range of 0.008-0.03 ng mL(-1) and the limits of quantification (S/N = 10) were between 0.025 and 0.08 ng mL(-1). The repeatability of the method was assessed through five consecutive extractions of independently prepared compound solutions at concentrations of 0.1, 10, and 100 ng mL(-1). The observed repeatability ranged between 3.2% and 11.2%, depending on the considered compounds. The developed method was successfully applied to real water samples while the relative recovery percentages obtained from the spiked water samples at three level concentrations (0.1, 10 and 100 ng mL(-1)) were fromd 90.1% to 100.9%.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据