Multistage cascade impaction is a core analytical technique for working with inhaled products, so understanding how cascade impactors work is crucial – but difficult. A new animation from impactor specialists Copley Scientific can help beginners visualize what’s going on inside the system.
The animation, which is titled, “How does a cascade impactor work?” goes inside the cascade impactor to show how the instrument fractionates the incoming aerosol on the basis of particle inertia, enabling the generation of an aerodynamic particle size distribution (APSD) specifically for the drug substance.
“After years of trying to explain the theory to newcomers through text and diagrams, I realized that only a short animation could make the basics really clear,” says Sales Director Mark Copley, “and it does seem to work. We are getting really good feedback from people who have been able to grasp the concepts once they can visualize what’s going on inside the impactor.”
View the animation below:
https://vimeo.com/178587849
