Determination of toxic heavy metals in fish samples using dispersive micro solid phase extraction combined with inductively coupled plasma optical emission spectroscopy.

Autor: Bozorgzadeh E; Department of Medical Biotechnology, School of Paramedicine, Guilan University of Medical Sciences, Rasht, Iran; Medical Biotechnology Research Center, Guilan University of Medical Sciences, Rasht, Iran., Pasdaran A; Medicinal Plants Processing Research Center, Shiraz University of Medical Sciences, Shiraz, Iran., Ebrahimi-Najafabadi H; Department of Medicinal Chemistry, School of Pharmacy, Guilan University of Medical Sciences, Rasht, Iran. Electronic address: h.ebrahimi@gums.ac.ir.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2021 Jun 01; Vol. 346, pp. 128916. Date of Electronic Publication: 2020 Dec 24.
DOI: 10.1016/j.foodchem.2020.128916
Abstrakt: Monitoring of toxic heavy metals in fish samples is a matter of a great importance from the nutritional and toxicological points of view. A dispersive micro solid phase extraction (dµSPE) for preconcentration of trace Pb, Cd, Hg, Co, Ni ions using pectin coated magnetic graphene oxide (pectin/Fe 3 O 4 /GO) is presented. Inductively coupled plasma optical emission spectroscopy (ICP/OES) was utilized for analyzing the samples. The influence of parameters name as pH, extraction time, sample volume and amount of sorbent were optimized using central composite design (CCD) methodology. Detection and quantification limits were between 0.01 and 0.21 µg g -1 and 0.04-0.67 µg g -1 of fresh fish sample, respectively. Accuracy of the method verified using certified reference materials (NIST-SRM-1946). Concentration of the toxic heavy metals were successfully determined in 11 different fish samples using the proposed method.
(Copyright © 2020 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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