Porous hydrophobic membrane and method of using same

Details Porous hydrophobic membrane and method of using same Porous hydrophobic membrane and method of using same

B - Operations, Transporting

01

L

167/37

B01L 3/00 (2006.01) G01N 33/53 (2006.01)

Patent

CA 1279005

Abstract of the Disclosure A system and method of immunoassay, both including the use of a reaction capsule having a hydrophobic mem- brane which may be repeatedly wetted and rendered hydro- phobic. A pressure differential across the membrane causes liquid flow therethrough to be initated and the hydrophobic state is then achieved by flowing gas through the membrane. The system includes a turntable supporting a plurality of reaction capsules and eccentric means for agitating the turntable and capsules. The turntable is rotated to position the capsules at various processing stations, including sample introduction, reagent intro- duction, wash, substrate introduction and read sta- tions. A single cylinder two-inlet valve may be used, one inlet connected to liquid and a second inlet connec- ted to a gas source, to provide both liquid and gas flow through the membrane.

506891

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