A simple analysis of the changes during evaporation of a commercial emulsion of unknown composition

Department of Pharmaceutical Science, Faculty of Pharmacy, University of Sao Paulo, Ribeirao Preto, SP, 14040-903, Brazil (M.M.B., P.A.R.-F.), Department of Pharmacy, School of Pharmacy, Federal University of Ouro Preto, Ouro Preto, MG, 35400-000, Brazil (O.D.H.S.) and Chemistry Department, University of Virginia, Charlottesville, VA, 22904 (S.E.F.)