LASER DIFFRACTION METHOD FOR PARTICLE SIZE DISTRIBUTION MEASUREMENTS IN PHARMACEUTICAL AEROSOLS

摘要

Method for measuring the particle size distribution of a pharmaceutical aerosol, in particular an aerosol of liquid droplets, by the use of laser diffraction, wherein in a first step an aerosol is generated by means of an inhaler and sprayed into preconditioned air having a relative humidity of at least 80%, and in a next step the aerosol particle size distribution being embedded into the pre-conditioned air is analysed by means of laser diffraction.