标题：Preconcentration of Copper Ion on Modified Magnetic Fe 3 O 4 @SiO 2 Nanoparticles in some Environmental Samples and its Determination by Electrothermal Atomic Absorption Spectrometry
期刊名称：Iranica Journal of Energy and Environment (IJEE)
印刷版ISSN：2079-2115
电子版ISSN：2079-2123
出版年度：2016
期号：4
页码：359-366
语种：English
出版社：Noshirvani University of TEchnology
摘要：Magnetic silica nanoparticles modified by 3-[2-(2-aminoethylamino) ethylamino] propyltrimethoxysilane (AAAPTS) and Salicylaldehyde were prepared and used as a new adsorbent for extraction and preconentration of copper ion through magnetic solid-phase extraction (MSPE) method. After adsorption, these ions were desorbed with nitric acid followed by the determination with electrothermal atomic absorption spectrometry. Fourier transform infrared spectroscopy (FT-IR), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) spectrometry and vibrating sample magnetometer (VSM) were used to characterize the adsorbent. The MSPE conditions were optimized.
