HYDROGEN PEROXIDE DETECTOR AND METHODS
First Claim
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1. 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.
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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.
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Citations
58 Claims
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1. An apparatus for detecting vapor-phase hydrogen peroxide, said apparatus comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58)
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22. An apparatus for detecting vapor-phase hydrogen peroxide, said apparatus comprising:
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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.
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30. A method of detecting vapor-phase hydrogen peroxide comprising:
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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.
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45. A method of detecting vapor-phase hydrogen peroxide comprising:
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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.
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Specification