
Keywords: طیف سنجی جرمی ثانویه ثانویه (TOF-SIMS); dry powder inhaler (DPI); force control agent (FCA); blending method; dispersibility; next generation impactor (NGI); single particle aerosol mass spectrometry (SPAMS); time-of-flight secondary ion mass spectrometry (ToF-SIMS); AFM; atomic force microscop