Surface modified iron magnetic nanoparticles assisted Fenton digestion and extraction method for cadmium determination.

Autor: Ayyıldız MF; Yıldız Technical University, Department of Chemistry, 34220, İstanbul, Turkey., Şaylan M; Yıldız Technical University, Department of Chemistry, 34220, İstanbul, Turkey., Bozyiğit GD; Yıldız Technical University, Department of Environmental Engineering, 34220, İstanbul, Turkey., Chormey DS; Yıldız Technical University, Department of Chemistry, 34220, İstanbul, Turkey., Özdemir OK; Yıldız Technical University, Department of Metallurgical and Materials Engineering, 34220, İstanbul, Turkey., Büyükpınar Ç; Yıldız Technical University, Department of Chemistry, 34220, İstanbul, Turkey., Bakırdere S; Yıldız Technical University, Department of Chemistry, 34220, İstanbul, Turkey; Turkish Academy of Sciences (TÜBA), Vedat Dalokay Street, No: 112, Çankaya, 06670, Ankara, Turkey. Electronic address: bsezgin@yildiz.edu.tr.
Jazyk: angličtina
Zdroj: Analytical biochemistry [Anal Biochem] 2021 Sep 15; Vol. 629, pp. 114309. Date of Electronic Publication: 2021 Jul 13.
DOI: 10.1016/j.ab.2021.114309
Abstrakt: This study presents a Fenton digestion method for milk samples based on UV irradiation for cadmium determination using flame atomic absorption spectrometry. The method was developed as an alternative to microwave digesters, using very basic apparatus and easy to acquire chemicals. Fenton digestion process was performed by the help of citric acid coated magnetic nanoparticles. Optimum conditions of the digestion process were applied to milk samples to evaluate analytical performance of the method. Limit of detection and limit of quantification values calculated for cadmium in milk were 0.53 and 1.8 mg/L, respectively. The method was applied to three different milk samples to validate the method's suitability and accuracy. Percent recovery values calculated for the samples spiked at two different concentrations ranged between 86 and 111%. Due to differences in the content of the spiked and control/standard milk samples, exact matrix matching calibration strategy using the same brand of milk sample in the preparation of calibration standard was employed and the accuracy of cadmium quantification was greatly enhanced (≈100%).
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Databáze: MEDLINE
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