Preconcentration of Copper Ion on Modified Magnetic Fe3O4@SiO2 Nanoparticles in some Environmental Samples and its Determination by Electrothermal Atomic Absorption Spectrometry
نویسندگان
1 Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran
2 Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran
3 Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran+Shahid Bahonar University of Kerman, Kerman, Iran
4 Department of Chemistry, Shahid Bahonar University of Kerman, Kerman, Iran+Shahid Bahonar University of Kerman, Kerman, Iran
doi
10.5829/idosi.ijee.2016.07.04.06چکیده
Magnetic silica nanoparticles modified by 3-[2-(2-aminoethylamino) ethylamino] propyl-trimethoxysilane (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.
