Separation of aqueous organic mixtures by pervaporation and analysis by mass spectrometry or a coupled gas chromatograph—mass spectrometer

摘要: Abstract A method of analysis has been developed based on the use selective membranes which gives possibility enriching, identifying and quickly analysing organic volatile compounds in dilute aqueous solution. The process used to separate water from products is pervaporation. p]One side membrane contact with liquid mixture. other membrane, under vacuum, directly connected ionization source a mass spectrometer analyses quantitatively qualitatively proportion as they pass through membrane. p]A number different pervaporation were studied selectivity mixtures measured. Four types analytical applications are described.