Determination of trace elements in Turkish wines by ICP-OES and HG-ICP-OES

摘要

The aim of this work was to determine the concentration of toxic metals in wine samples from different regions in Turkey using ICP-OES and HG-ICP-OES, and comparing the results with reports from other researchers. Ten samples each of white wines and red wines were obtained at a local supermarket and analyzed for Ca, K, Cr, Mn, Sn, Zn, Cu, Fe, Ni, Mg, Al, and Co by inductively coupled plasma optical emission spectrometry (ICP-OES), and for Hg, Pb, and Cd by hydride generation combined with inductively coupled plasma optical emission spectrometry (HG-ICP-OES). The concentrations found in red and white wines were, respectively: Cd: 0.017 and 0.016 μg L~(-1); Pb: 0.021 and 0.030 μg L~(-1); Hg: < 0.005 and <0.01 μg L~(-1); Ca: 44.118 and 42.195 mg L~(-1), Cr: 0.056 and 0.0584 mg L~(-1), K: 1169 and 986 mg L~(-1), Mn: 1.564 and 0.118 mg L~(-1), Sn: 0.098 and 0.089 mg L~(-1), Zn: 0.665 and 0.473 mg L~(-1), Cu: 0.079 and 0.126 mg L~(-1), Fe: 1.024 and 1.005 mg L~(-1), Ni: 0.036 and 0.051 mg L~(-1), Mg: 78 and 68 mg L~(-1), Al: 0.524 and 0.524 mg L~(-1), Co: 0.214 and 0.134 mg L~(-1). The accuracy of the method was verified using the standard reference material NRCSLRS-4 River Water. The analytical values obtained are comparable with those reported by other researchers.