Title of article
Magnetic solid-phase extraction and Uv/vis Spectrophotometric determination of trace amount of Copper in vegetable and fruit samples after preconcentration of its Pentetate complex
Author/Authors
Veisi, Hojat Department of Chemistry - Payame Noor University (PNU), Tehran , Parvizi, Fatemeh Department of Chemistry - Payame Noor University (PNU), Tehran , Abdi, Mohammad Reza Department of Chemistry - Payame Noor University (PNU), Tehran
Pages
11
From page
171
To page
181
Abstract
Core-shell structure Magnetite@polydopamine (Fe3O4@PDA) nanoparticles have been successfully
synthesized and were characterized by FT-IR, TEM, FE-SEM, XRD, EDX, Raman Spectroscopy, VSM and
Zeta potential. The effects of the different parameter on copperpentetate complex (CuDTPA) sorption
on Fe3O4@PDA were investigated by using Box-Behnken design for Spectrophotometric determination
of trace amount of Copper in vegetable and fruit samples after preconcentration of its Pentetic complex.
Under optimal experimental conditions, L.R., LOD, and LOQ of Cu (II) were 2-700 μg.L-1, 0.0146 μg.L-1
and 0.0487 μg.L-1 respectively. The Preconcentration Factor 100 was obtained. Low relative standard
deviations (RSD=0.7 %) for 10 replicates are achieved. The method was applied to the determination of
trace amount of Cu (II) in food samples and the results showed that no significant difference between the
proposed method and Flame Atomic Absorption Spectroscopy.
Keywords
Box-Behnken Design , DTPA , Fe3O4@PDA , Magnetic Solid Phase Extraction , Vegetable and Fruit Samples
Journal title
Astroparticle Physics
Serial Year
2018
Record number
2437990
Link To Document