Cu (II), Zn (II) AND Pb(II) ANALYSIS IN WHITE WINE SAMPLES USING FAAS

This work presents some results regarding Cu, Zn, and Pb content in white wine samples (Romanian DOC and local producer in Diosig, Bihor County. Flame Atomic Absorption Spectroscopy (FAAS) was performed for the study. The results reveal that the dry wines have the highest content of Cu (II) and the sweet wines have the highest content of Zn (II). Pb (II) content for all the studied wines is below the limit of detection. Exceeding of the concentration (over MAC-legal maximum admissible concentration) was observed only for the copper ion content in white wines purchased from the local producer. Probably the exciding of Cu(II) concentration is due to exogenous sources as the treatments of the grapes with CuSO4.