Patent ID: 7533585
Filing Date: 2009-05-19
Classification: G01N

Abstract:
1. A dilution device, comprising: a first fluid inlet port and a combined fluid outlet port; a first porous conduit defining an internal flow passage, the first porous conduit having a plurality of pores that communicate between an outside region external of the first porous conduit and the internal flow passage; a second porous conduit disposed around the first porous conduit, a first chamber located between the second porous conduit and the first porous conduit, the second porous conduit having a plurality of pores that communicate between an outside region external of the second pours conduit and the first chamber; and a housing for a dilution device enclosing the first and second porous conduits, the housing defining a second chamber at least partially around the second porous conduit, the housing having a second fluid inlet port in communication with the second chamber, wherein the first porous conduit includes a port at a first end portion of the first porous conduit in communication with the second chamber.