1. Research Department, Faculty of Chemistry, Al. I. Cuza University, 11 Carol I, Iasi-700506, Romania
2. Faculty of Chemistry, Al. I. Cuza University of Iasi, 11 Carol I, Iasi-700506, Romania
3. Research Centre for Oenology, Romanian Academy, 8 Carol I, Iasi-700505, Romania
4. Faculty of Physics, Al. I. Cuza University, 11 Carol I, Iasi-700506, Romania