Of the preferred cascade impactors used to measure the aerodynamic particle size distribution of inhalers, the Next Generation Impactor (NGI) is one of the most common.
The manual recovery of samples from such impactors can be tedious, time consuming and prone to human error.
The NGI Assistant is a labour saving device that places a known quantity of solvent in each cup of three NGI cup trays, gently agitates the contents in order to dissolve the active drug in solvent and then places a representative sample of solution from each of the cups into HPLC vials for subsequent analysis.
It takes approx. 30 minutes to process three trays.
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