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The Scientific World Journal
Volume 2012 (2012), Article ID 878242, 7 pages
http://dx.doi.org/10.1100/2012/878242
Research Article

Isotopic and Elemental Determination in Some Romanian Apple Fruit Juices

Mass Spectrometry, Chromatography and Applied Physics Department, National Institute for Research and Development of Isotopic and Molecular Technologies, 65-103 Donath Street, P.O. Box 700, 400293 Cluj-Napoca 5, Romania

Received 12 October 2011; Accepted 14 November 2011

Academic Editors: A. Welle and F. Zhang

Copyright © 2012 Dana Alina Magdas et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

H, C, O stable isotope ratios and the content of some heavy elements of 31 Romanian single-strength organic apple juices collected from four Transylvanian areas are discussed in this study. The aim of this study was to measure the 2H/1H, 18O/16O, 13C/12C ratios of these juices and their elemental profile and to establish a database of authentic values to be used for adulteration and authenticity testing. Our results have shown mean values of 𝛿 1 8 O = 4 . 2 and 𝛿 D 𝛿 4 6 . 5 , respectively, for apples from Transylvania and at the same time the mean value of 𝛿 1 3 C = 2 8 . 2 . The content of Cd, Pb, U, Zn, As was below the acceptable limits stipulated in US-EPA standard for drinking water. Cu and Cr limits exceeded for one single juice; Ni content for some apple juices from Maramures, Alba, and Cluj was higher than the acceptable value.