Akademik Veri Yönetim Sistemi
MICROCHEMICAL JOURNAL, cilt.157, 2020 (SCI-Expanded)
Heavy metals in honey are of interest not only for quality control, but also as an environmental indicator. In the present work, we developed a new selective and rapid magnetic dispersive solid-phase extraction (MDSPE) method for the separation/determination of Al(III) in honey samples by the zetasizer system. The synthesis of a new nanocomposite comprised of aminosilanized magnetic graphane oxide (GO/Fe3O4/APS)-coated 2-hydroxy-5-methyl-1,3-benzene-dicarboxaldehyde (HB) (GO/Fe3O4/APS@HB) is synthesized and characterized in for the first time the present work. The parameters influential on the determination of Al(III) including the pH of the sample, sorption time, amount of nanocomposite, eluent type, concentration, volume, and elution time, were investigated and optimized. These magnetic nanocomposites carrying Al(III) could be easily separated from honey samples simply by applying an external magnetic field; no filtration/centrifugation was necessary. Moreover, GO/Fe3O4/APS@HB demonstrates selectivity toward Al(III). Under the optimum conditions, the detection limits (DL) of the method for Al(III) was found to be (3 s) 0.13 mu g L--1,L- the preconcentration factor was calculated as 65, and the relative standard deviation was obtained as <= 2% for n = 11. The method was performed for the determination of Al(III) in some honey samples. The proposed techniques show satisfactory sensitivity, selectivity, detection limits and standard deviation for Al(III) determination in a honey sample. The method is suitable for the analysis of honey samples, which are challenging to analyze using other spectroscopy techniques.