Patent ID: 6722182
Filing Date: 2004-04-20
Classification: B01D,G01N

Abstract:
A solid-state chemical vapor generator, comprising:(a) a housing having a vapor inlet and a vapor outlet; (b) means for controlling the temperature within said housing; (c) at least one gas impermeable, thermally conductive container disposed within said housing, wherein a first end of said at least one gas impermeable container is connected to said vapor inlet and a second end of said at least one gas impermeable container is connected to said vapor outlet; (d) an adsorption article contained within said at least one gas impermeable, thermally conductive container, said adsorption article comprising a chemical adsorbate material substantially uniformly distributed on and at equilibrium with an adsorbent material, such that said adsorption article releases a controlled amount of chemical adsorbate vapor into said gas impermeable container based on the temperature maintained in said housing; and (e) means for introducing a continuous flow of an inert gas into said vapor inlet, through said at least one gas impermeable container, and out said vapor outlet, thereby delivering a continuous flow of controlled concentration of chemical adsorbate vapor, wherein said concentration of chemical adsorbate vapor is determined by the temperature maintained in said housing, the amount of the chemical adsorbate uniformly applied to said absorbent, and the flow rate of inert gas through said at least one gas impermeable container.