cascade impactor

cascade impactor

[ka′skād im′pak·tər]
(engineering)
A low-speed impaction device for use in sampling both solid and liquid atmospheric suspensoids; consists of four pairs of jets (each of progressively smaller size) and sampling plates working in series and designed so that each plate collects particles of one size range.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The proposed USP monograph for Albuterol Inhalation Aerosols, specifies a non-standard sampling apparatus for delivered dose uniformity (DDU) testing, and an alternative to the standard USP induction port for aerodynamic particle size distribution (APSD) measurement using an Andersen Cascade Impactor (ACI).
With cascade impactor we explain about deposition site and rate from particle size spectrums.
The company is a specialist in cascade impactor technology with products serving the pharmaceutical and aerosol research markets, as well nano-particle generation and measurement technology serving the semiconductor device fabrication market.
To investigate the size distributions of aerosol particles responsible for transport of endotoxins and peptidoglycans, the air samples were additionally collected using the 8-stage cascade impactor (model 20-830, New Star Environmental, Inc., Roswell, GA, USA), which can separate particles of the following aerodynamic diameters: 0.4/0.7/1.1/2.1/3.3/4.7/5.8/9 [micro]m.
PM course and fine fractions can be collected with cyclones and cascade impactor. Cyclone separates and collects air particles of certain sizes such as [PM.sub.10], [PM.sub.2.5] or [PM.sub.1.0], among others, while cascade impactor separates and collects particles in size ranges.
The methods available for collecting fungal for this research are used biostage single-stage impactor viable cascade impactor attached to a SKC Quick Take 30 are.
Powders aerodynamic properties were assessed by Andersen cascade impactor (apparatus D, Eur.
Rapid check of cascade impactor cut-sizes using a polydisperse challenge aerosol calibration method.
A two-stage viable cascade impactor was connected to a pressure/vacuum pump calibrated to 28.3 L/min.