Devices, Systems and Methods for Elution of Particles from Flat Filters

摘要

Devices, systems and methods are disclosed which relate to using a wet foam elution method for removal of particles from a flat filter. Particles are captured from the atmosphere onto the flat filter. The flat filter is then placed into an extractor which passes a stream of wet foam through the flat filter. Expansion of the foam works to efficiently remove captured particles. The foam flows from the filter along with the captured particles into a sample container. Once in the sample container, the foam quickly breaks down leaving an analysis ready liquid sample.

主权项

1. A system for collecting and extracting a sample from an aerosol, the system comprising:
a collector; a flat filter coupled with the collector so that air flows through the flat filter; an extractor for backflushing the flat filter with an elution foam; and a container for collecting the foam once it is backflushed through the flat filter; wherein the flat filter is inserted into the collector to collect the sample from the aerosol, then the foam is used to backflush the flat filter into the container.