“…On top of that, because it is a simple, easily obtained and non-destructive method, its procedures are appropriate for pharmaceutical formulations. Such methods have allowed to compare (Sabin, Ferrão, Furtado, 2004;Neumann et al, 2004 and quantify (Blanco et al, 2000b;Blanco et al, 2001;Yang, Irudayaraj, 2002;Sun, Xiang, An, 2004;Konzen et al, 2003) several drugs during different manufacturing stages.…”