LASER DIFFRACTION METHOD FOR PARTICLE SIZE DISTRIBUTION MEASUREMENTS IN PHARMACEUTICAL AEROSOLS

摘要

Method for measuring the particle size distribution of a pharmaceuticalaerosol, in particular an aerosol of liquid droplets, by the use of laserdiffraction, wherein in a first step an aerosol is generated by means of aninhaler and sprayed into preconditioned air having a relative humidity of atleast 80%, and in a next step the aerosol particle size distribution beingembedded into the pre-conditioned air is analysed by means of laserdiffraction.