Magnetic nanoparticles modified with polyfuran for the extraction of polycyclic aromatic hydrocarbons prior to their determination by gas chromatography
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- 作者：Amirhassan Amiri ; Mehdi Baghayeri ; Milad Kashmari
- 关键词：Magnetic solid ; phase extraction ; Magnetic nanoparticles ; Preconcentration ; Solid phase extraction ; Polycyclic aromatic hydrocarbons ; Gas chromatography
- 刊名：Microchimica Acta
- 出版年：2016
- 出版时间：January 2016
- 年：2016
- 卷：183
- 期：1
- 页码：149-156
- 全文大小：1,096 KB
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Mehdi Baghayeri (1)
Milad Kashmari (1)
1. Department of Chemistry, Faculty of Sciences, Hakim Sabzevari University, 96179-76487, Sabzevar, Iran - 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Analytical Chemistry
Inorganic Chemistry
Physical Chemistry
Characterization and Evaluation Materials
Monitoring, Environmental Analysis and Environmental Ecotoxicology - 出版者：Springer Wien
- ISSN：1436-5073
文摘
We describe magnetite nanoparticles modified with polyfuran (PFu/Fe3O4) and their use as adsorbents for the solid-phase extraction of the polycyclic aromatic hydrocarbons (PAHs) naphthalene, fluorene and anthracene from water and urine samples. The PFu/Fe3O4 nanocomposite was characterized by Fourier transform infrared spectroscopy, scanning electron microscopy and vibrating sample magnetometry (VSM). The adsorbent was magnetically separated from the sample, extracted with dichloromethane, and the extracts were submitted to gas chromatographic analysis with flame ionization detection. The amount of adsorbent, adsorption and desorption time, salt addition and desorption solvent were optimized. The method displays detection limits (at an S/N ratio of 3) in the range from 5 to 20 pg mL−1, and the limits of quantification (at an S/N ratio of 10) are between 20 and 50 pg mL−1. Relative standard deviations (RSDs) for intra- and inter-day precision are 4.1–5.6, and 5.3–6.5 %, respectively. The feasibility of the method was demonstrated by extracting and determining PAHs in (spiked) real water and urine samples.