title: Comparison of extraction induced by emulsion breaking, ultrasonic extraction and wet digestion procedures for determination of metals in edible oil samples in Turkey using ICP-OES.
abstract: The content of elements (Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn) in edible oils (sunflower, hazelnut, canola, corn and olive oils) from Turkey was determined using inductively coupled plasma optical emission spectrometry (ICP-OES) after ultrasonic extraction, wet digestion, and extraction induced by emulsion breaking procedures (EIEB). In order to evaluate the best sample preparation procedure, EIEB procedure was compared by ultrasonic extraction and wet digestion procedures. The results in the samples (minimum-maximum in mgkg(-1)) were : 0.022-0.058, Cr 0.126-7.106, Cu 0.570-4.504, Fe 8.004-12.588, Mn 0.035-0.054, Ni 0.908-2.182, Pb 0.099-0.134 and Zn 2.206-8.982. The EIEB procedure was found to be fast, reliable, simple, and excellent in comparison with the other studied procedures. The recovery test was performed by spiking the samples with known amounts of the metals in the form of organometallic standards and applying the EIEB procedure. The recoveries were in the range of 96-109%.
authors: Trakya University, Faculty of Science, Department of Chemistry, 22030 Edirne, Turkey. dbakircioglu@trakya.edu.tr
authors: Dilek
authors: D
authors: Bakircioglu
authors: Yasemin Bakircioglu
authors: YB
authors: Kurtulus
authors: Selcuk
authors: S
authors: Yurtsever
mesh_terms: D053000:Analytic Sample Preparation Methods / Q000379:methods*; D008670:Metals / Q000032:analysis* / Q000302:isolation & purification*; D010938:Plant Oils / Q000032:analysis*; D013057:Spectrum Analysis; D014131:Trace Elements / Q000032:analysis* / Q000302:isolation & purification*; D014421:Turkey; D014465:Ultrasonics
chemical_list: D008670:Metals; D010938:Plant Oils; D014131:Trace Elements