Info

where Q is the volumetric flow rate and/is the frequency of the piezoelectric ceramic.

USP sample induction port

Cascade impactor

Throat

Wire support

Sinlered-glass impaction plates

Aerosol

Mulii-jet

Vacuum pump (60 L/mln)

Filter mount

Stage 1

(preseparator)i Stage 2 Stage 3

Stage A

Stage 1

(preseparator)i Stage 2 Stage 3

Stage A

USP sample induction port

Wire support

Sinlered-glass impaction plates

Cascade impactor

Aerosol

Throat

Mulii-jet

Vacuum pump (60 L/mln)

Filter mount

Figure 11 Magnified diagrams of monodisperse aerosol-generating devices. (A) Spinning-disk aerosol generator. (B) Vibrating orifice aerosol generator.

When a nonvolatile solute is incorporated in a volatile solvent droplet, the dry particle diameter can be derived from the following expression:

where C is the volumetric concentration of the nonvolatile solute.

The droplet size delivered from a spinning-disk monodisperse aerosol generator can be derived from the following expression:

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