1. Department of Chemistry “G. Ciamician”; University of Bologna; Via Selmi 2 40126 Bologna Italy
2. Department of Industrial Chemistry “Toso Montanari”; University of Bologna; Viale Risorgimento 4 40136 Bologna Italy
3. Microchemistry and Microscopy Art Diagnostic Laboratory (M2ADL)”; University of Bologna; Via Guaccimanni 42 48123 Ravenna Italy