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US 2010/0144050 A1Published application
Hydrogen peroxide detector and methods
AssigneeNomadics, Inc.
InventorMarcus La Grone
Life of this patent
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Abstract
The current invention provides a detector and method suitable for sensing vapor-phase hydrogen peroxide. The detector utilizes a chemiluminescent material comprising a peroxide reactive compound, a dye and a solvent. Upon reaction with hydrogen peroxide, the chemiluminescent material will generate detectible light.
Claims58
An apparatus for detecting vapor-phase hydrogen peroxide, said apparatus comprising:
- a housing having at least one passageway therethrough, said passageway having an inlet and an outlet;
- a pump in fluid communication with said passageway, said pump suitable for drawing gases from the exterior of said housing into said passageway;
- a sensing assembly in fluid communication with said passageway, said sensing assembly comprising a chemiluminescent material and an optical light detector, said chemiluminescent material having at least one peroxide reactive component.
An apparatus for detecting vapor-phase hydrogen peroxide, said apparatus comprising:
- a housing having at least one passageway therethrough, said passageway having an inlet and an outlet;
- a pump in fluid communication with said passageway, said pump suitable for drawing gases from the exterior of said housing into said passageway;
- a sensing assembly in fluid communication with said passageway, said sensing assembly comprising a solid support carrying a liquid chemiluminescent material and an optical light detector positioned to detect light generated by said chemiluminescent material, said chemiluminescent material having at least one peroxide reactive component.
A method of detecting vapor-phase hydrogen peroxide comprising:
- providing a vapor-phase hydrogen peroxide detector comprising a sensing assembly, said sensing assembly comprising a solid support carrying a liquid chemiluminescent material and an optical light detector positioned to detect light generated by said chemiluminescent material;
- contacting with said chemiluminescent material with a gas carrying a vapor-phase hydrogen peroxide for a period of time sufficient to permit said vapor-phase hydrogen peroxide to react with said chemiluminescent material wherein said reaction generates visible light;
- and,
- detecting said visible light with said optical light detector.
1 more element
A method of detecting vapor-phase hydrogen peroxide comprising:
- providing a vapor-phase hydrogen peroxide detector comprising a tip and a sensing assembly in fluid communication with said tip, said sensing assembly comprising a solid support carrying a liquid chemiluminescent material and an optical light detector positioned to detect light generated by said chemiluminescent material;
- heating said chemiluminescent material;
- flowing a gas carrying a vapor-phase hydrogen peroxide through said detector at a flow rate between about 20 cm3/min to about 200 cm3/min;
- contacting with said chemiluminescent material with said gas carrying a vapor-phase hydrogen peroxide for a period of time sufficient to permit said vapor-phase hydrogen peroxide to react with said chemiluminescent material wherein said reaction generates visible light;
- and,
- detecting said visible light with said optical light detector.
3 more elements
Dependencies are inferred from the claim text.