Metals Determination by Microwave Digestion ICP-OES of Some Dietary Supplements and Diet Products in Turkey
 
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Mehmet Akif Ersoy University, TURKEY
CORRESPONDING AUTHOR
Hale Seçilmiş Canbay   

Department of Bioengineering, Faculty of Engineering and Architecture, Mehmet Akif Ersoy University, 15030 Burdur, Turkey
Online publication date: 2016-12-04
Publication date: 2016-12-04
 
Eurasian J Anal Chem 2016;(Special issue on UAKK8 Sp 1):45–53
 
KEYWORDS
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ABSTRACT
Inductively coupled plasma optical emission spectrometry (ICP-OES) analysis was applied to metals concenrations in ten samples of some dietary supplements and diet products in Turkey. The As, Cr, Zn, Pb, Cd, Co, Ni, Hg, Mn, Fe, Al and Cu contents of dietary supplements and diet products were determined using microwave digestion. The digestion method with acid mixture (HNO3 + HCl) was used to break down the organic material of dietary supplements and diet products. The results of analysis showed that the mean level of metals were Ni 3.34 ± 0.01 µg/g, Zn 41.24 ± 0.63 µg/g, Mn 23.27 ± 0.25 µg/g, Fe 221.10 ± 1.53 µg/g, Al 18.46 ± 0.14 µg/g and Cu 7.76 ± 0.15 µg/g for dietary supplements and diet products. The concentration of other metals and heavy metals was not found sufficiently. Based on the results obtained in the current work has sensitivity, and accuracy. Calibration curves showed a good linearity for all elements (R2>0.999). The quantitation limit ranged 2.5 to 5 µg/L in dietary supplements and diet products. Recoveries were in the range 92.12-102.08%. The results obtained form this study have shown good accuracy and reproducibility.
 
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