NDLI: Optimized solid phase extraction based on diethyldithiocarbamate-coated Fe$_{3}$O$_{4}$ magnetic nanoparticles followed by ICP-OES for determination of Cd(II) and Ni(II) in rice and water samples

Content Provider	Springer Nature Link
Author	Karimi, Maryam Sereshti, Hassan
Copyright Year	2013
Abstract	In the present study, application of Fe$_{3}$O$_{4}$ magnetic nanoparticles (MNPs) coated with diethyldithiocarbamate as a solid-phase sorbent for extraction of trace amounts of cadmium (Cd$^{2+}$) and nickel (Ni$^{2+}$) ions by the aid of ultrasound was investigated. The analytes were determined by inductively coupled plasma-optical emission spectroscopy. Fe$_{3}$O$_{4}$ MNPs were prepared by solvothermal method and characterized with dynamic light scattering, scanning electron microscope and X-ray diffraction. Response surface methodology was used for optimization of the extraction process and modeling the data. The optimal conditions obtained were as follows: chelating agent, 1.2 g L$^{−1}$; pH, 6.13; sonication time, 13 min and Fe$_{3}$O$_{4}$ MNPs, 10.3 mg. The calibration curves were linear over the concentration range of 1–1,000 μg L$^{−1}$ for Cd$^{2+}$ and 2.5–1,000 for Ni$^{2+}$ with the determination coefficients (R $^{2}$) of 0.9997 and 0.9995, respectively. The limits of detection were 0.27 μg L$^{−1}$ for Cd$^{2+}$ and 0.76 μg L$^{−1}$ for Ni$^{2+}$. The relative standard deviations (n = 7, C = 200 μg L$^{−1}$) for determination of Cd$^{2+}$ and Ni$^{2+}$ were 2.0 and 2.7 %, respectively. The relative recoveries of the analytes from tap, river and lagoon waters and rice samples at the spiking level of 10 μg L$^{−1}$ were obtained in the range of 95–105 %.
Starting Page	1129
Ending Page	1136
Page Count	8
File Format	PDF
ISSN	1735207X
Journal	Journal of the Iranian Chemical Society
Volume Number	11
Issue Number	4
e-ISSN	17352428
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2013-11-30
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Solid phase extraction Analytical Chemistry Experimental design Physical Chemistry Magnetic nanoparticles Diethyldithiocarbamate Biochemistry Inorganic Chemistry ICP-OES Organic Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry

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