Patent ID: 8561483

Claim:
An apparatus for collecting particles entrained in a sample gas stream, comprising: a first duct to conduct a coolant gas stream at a first volumetric flow rate, a second duct to conduct the sample gas stream at a second volumetric flow rate; a chiller coupled to the first duct to cool the coolant gas stream to a temperature below that of the sample gas stream; a third duct to conduct a carrier gas stream having a third volumetric flow rate toward a downstream particle detector, the third volumetric flow rate being lower than the second volumetric flow rate; and an adsorption media to be in fluid communication with each of the sample gas stream and the coolant gas stream concurrently to collect the particles entrained in the sample gas stream at a temperature below that of the sample gas stream, the adsorption media further to be in alternate fluid communication with the third duct to transfer the particles from the adsorption media to the carrier gas stream.