Class / Patent application number | Description | Number of patent applications / Date published |
436135000 | Ozone or peroxide | 24 |
20080305553 | Kinetic determination of peracid and/or peroxide concentrations - A use composition monitor determines the concentration of peracid and/or peroxide in a use composition using a kinetic assay procedure. A sample mixture containing a sample of the use composition, a diluent and at least one reagent is prepared and analyzed using, for example, an optical detector. Response data obtained by the detector is indicative of the optical absorbance of the sample mixture as a function of time. A processor analyzes the response data to determine a corresponding best fit linear relationship. The initial absorbance of the sample mixture is indicative of the concentration of peracid in the use composition, while the slope of the best fit equation is indicative of the concentration of peroxide in the use composition. | 12-11-2008 |
20090087921 | VAPORIZED HYDROGEN PEROXIDE CONCENTRATION DETECTOR - A method of determining the presence of vaporized hydrogen peroxide (VHP) in a region, comprising the steps of providing a sealable region having an inlet port and an outlet port, creating a flow of a carrier gas into, through and out of the region, delivering vaporized hydrogen peroxide into the carrier gas flow upstream of the region inlet port, destroying the vaporized hydrogen peroxide at a first location downstream from the region outlet port, monitoring the temperature of the carrier gas before and after the first location, and determining a presence of vaporized hydrogen peroxide in the region based upon the temperature readings before and after the first location. | 04-02-2009 |
20100055800 | Compositions for Chemiluminescent Detection of Hydrogen Peroxide - Methods and compound useful for detecting a source of hydrogen peroxide are disclosed wherein a signalling compound of the formula: | 03-04-2010 |
20100144050 | HYDROGEN PEROXIDE DETECTOR AND METHODS - 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. | 06-10-2010 |
20100297776 | PEROXIDE CHEMICAL SENSOR AND SENSING METHOD - Sensors, sensing systems and sensing methods of the invention provide for detection of peroxides, including for example, vapor-phase H | 11-25-2010 |
20110159603 | FLUORESCENT PROBE SPECIFIC TO HYDROGEN PEROXIDE - A compound represented by the following general formula (IA) or (IB) (R | 06-30-2011 |
20110195514 | COLORIMETRIC REAGENT FOR PREVENTION OF PEROXIDE FORMATION IN SOLVENTS - A reagent comprising a reduced metal oxide in a carrier for exposure to a solvent for the detection of the presence of peroxide in the solvent is disclosed. The reduced metal oxide may be molybdenum bronze. The reagent may have a dark color before exposure to peroxide and have a light color after exposure to peroxide. | 08-11-2011 |
20110201123 | LOW COST, HIGH ACCURACY OZONE SENSING - An ozone detection system includes a source of sample gas containing a concentration of ozone and a single optical pathway. The system includes a light source in optical communication with the optical pathway. The system further includes a first airflow passageway for receiving a first sample of gas from the source. The passageway includes a catalytic scrubber to reduce ozone content in the sample gas and passing the reduced ozone gas to a sensor. The system further includes a second airflow passageway for receiving a second sample of gas from the source and passing the gas unaltered to a sensor. The system further includes a sensor for sensing independently the light intensity of the sample of gas received from the first and second passageways. The system further includes a processor for receiving the light intensity data from the sensor and calculating the ozone concentration in the source of sample gas. | 08-18-2011 |
20110201124 | OZONE REDUCING Y-PIPE FOR LOW COST OZONE SENSOR - An ozone detection system includes a source of sample gas containing a concentration of ozone. The system further includes a first airflow passageway for receiving a first sample of gas from the source. The first airflow passageway includes a catalytic scrubber to reduce ozone content in the sample gas and a second airflow passageway receives a second sample of gas from the source. A third airflow passageway results from the convergence of the first and second airflow passageways wherein the reduced sample gas and the unaltered sample gas are combined to form a diluted sample gas. A sensor is provided for sensing the ozone concentration in the diluted sample gas received from the third airflow passageway. A processor is provided operative to calculate the actual concentration of ozone in the sample gas as a function of the sensed concentration of the diluted sample. | 08-18-2011 |
20110300636 | METHOD AND APPARATUS FOR DETECTING HYDROGEN PEROXIDE - The presence of hydrogen peroxide vapor is detected with high sensitivity. Oxygen molecules in the air are ionized by electrons generated by a discharge plasma, thereby producing an oxygen molecule negative ion O | 12-08-2011 |
20120077279 | Silica Nanoparticles Incorporating Chemiluminescent And Absorbing Active Molecules - Nanoparticles incorporating absorbing materials, e.g., an absorber dye, which under appropriate conditions exhibit chemiluminescence. The nanoparticles can be mesoporous silica nanoparticles or core-shell silica nanoparticles. The nanoparticles can be used as sensors to detect an analyte. | 03-29-2012 |
20120107946 | DETECTION OF EXPLOSIVES AND OTHER SPECIES - The present invention provides a series of systems, devices, and methods relating to the determination of explosives, such as peroxides or peroxide precursors, and other species. Embodiments of the invention may allow a sample suspected of containing an explosive (e.g., a peroxide) or other species to interact with a reactant, wherein the sample may react and cause light emission from the reactant. Advantages of the present invention may include the simplification of devices for determination of peroxide-based explosives, wherein the devices are portable and, in some cases, disposable. Other advantages may include relative ease of fabrication and operation. | 05-03-2012 |
20120276651 | FLUORESCENT NANOPROBE FOR DETECTING HYDROGEN PEROXIDE AND FABRICATION METHOD THEREOF - The present disclosure relates to a sulfonated benzene compound emitting fluorescence by reaction with hydrogen peroxide, aqueous-dispersed fluorescent nanoprobes applicable for real-time detection of hydrogen peroxide, and a fluorescent nanoprobe fabrication method. The fluorescent nanoprobe contains the following sulfonated benzene compound and water. | 11-01-2012 |
20130034911 | OZONE CONVERSION SENSORS FOR AN AUTOMOBILE - A system for a vehicle includes a first ozone sensor that generates a first sensor signal indicating a first amount of ozone in air flowing into a radiator. A second ozone sensor generates a second sensor signal indicating a second amount of ozone in air flowing out of the radiator. A control module receives the first sensor signal and the second sensor signal and determines an ozone conversion rate based on the first sensor signal and the second sensor signal. | 02-07-2013 |
20130260471 | USE OF CYCLIC AZABORONATES AS SENSITIVE MATERIALS IN SENSORS FOR DETECTING THE PRESENCE OF PEROXIDES IN A GASEOUS ENVIRONMENT - The invention concerns the use of cyclic azaboronates as sensitive materials in sensors for the detection of the presence of peroxides, in particular hydrogen peroxide, in a gaseous environment. | 10-03-2013 |
20140057360 | ARRANGEMENT AND METHOD FOR DETECTING HYDROGEN PEROXIDE - An arrangement for detecting hydrogen peroxide includes a sample space configured to receive a hydrogen-peroxide-containing gas. The sample space is fluidically connected to a hydrogen-peroxide-selective colorimetric detection reagent. The arrangement also includes at least one radiation source configured to irradiate the detection reagent and at least one detector configured to detect at least one optical property of the colorimetric detection reagent. This arrangement enables detection of hydrogen peroxide in the gaseous phase without the need to transfer hydrogen peroxide to the liquid phase. As a result, a simplified measurement behavior and additionally a highly sensitive measurement are attained. | 02-27-2014 |
20140065718 | HYDROGEN PEROXIDE SENSITIVE METAL NANOPARTICLES, METHOD FOR PRODUCING THE SAME AND HYDROGEN PEROXIDE DETECTION SYSTEM COMPRISING THE SAME - Provided is a hydrogen peroxide sensitive metal nanoparticle including: a metal nanoparticle including a biocompatible metal and a hydrogen peroxide reactive ion which is bonded to a surface of the metal nanoparticle and is oxidized by hydrogen peroxide. | 03-06-2014 |
20140179016 | Reagent for Measuring Degree of Oxidative Stress and Method of Measuring Degree of Oxidative Stress - The present invention provides a reagent for measuring a degree of oxidative stress that includes a compound represented by the following general formula (I) or a salt thereof, and a method of measuring a degree of oxidative stress using the reagent for measuring a degree of oxidative stress. In the general formula (I), R | 06-26-2014 |
20140193923 | SENSORS AND METHODS FOR DETECTING PEROXIDE BASED EXPLOSIVES - Methods, compositions, and systems for detecting explosives is disclosed and described. A sensor for detecting explosives can comprise a porous hydrophilic material modified with a series of π conjugated molecules with the general structure: | 07-10-2014 |
20140315323 | USE OF TRANSITION-METAL OXIDE NANOPARTICLES AS SENSITIVE MATERIALS IN CHEMICAL SENSORS FOR DETECTING OR ASSAYING VAPORS OF TARGET MOLECULES - The invention relates to the use of nanoparticles of at least one oxide of at least one transition metal doped with a rare earth element, particularly Y | 10-23-2014 |
20150050745 | PEROXIDE INDICATOR - An indicator for detecting peroxide can detect the peroxide through change of hue thereof by reacting the peroxide according to a predefined concentration and a predefined sterilization treatment condition thereof. The indicator has better resistance against weather or light and preservation stability than those of prior indicators including inorganic compounds or organic compounds as discoloration components, can clearly change an arbitrary hue thereof under suitable discoloration rate, and has visible distinguishability. The indicator for detecting peroxide includes powdery metal sulfide, that undergoes discoloration by reacting with the peroxide. In particular a discoloration layer including the metal sulfide is applied onto at least a portion of a base substrate. | 02-19-2015 |
20150072435 | Tester For Peroxide-Based Compounds - An apparatus and a method for the colorimetric detection testing of peroxide-based compositions is disclosed. The apparatus comprises a first carrier having an acidic compound in dry form for hydrolysis of peroxide-based compounds and a second carrier having a colorimetric detection reagent composition in dry form. The carriers are positioned with respect to a support member to facilitate transfer of a solution containing a peroxide-based compound hydrolyzed by the acidic compound when activated into contact with the reagent composition of the second carrier for observation of any resulting color indication. The method comprises steps of applying the acidic compound and colorimetric detection reagent composition is liquid forms to the respective carriers and allowing the applied formulations to dry. The carriers are then positioned with respect to a tester support member to facilitate transfer of a solution containing a peroxide-based compound hydrolyzed by the acidic compound when activated into contact with the reagent composition of the second carrier for observation of any resulting color indication. When a test is to be performed the formulations are activated by water, and a composition to be tested is placed in contact with the carriers and any color change of the colorimetric detection reagent is observed. | 03-12-2015 |
20150377848 | APPARATUS AND METHOD FOR MEASURING HYDROGEN PEROXIDE IN WATER - An apparatus and method for measuring hydrogen peroxide concentration in water to an accuracy of 0.1 ppm comprises a colorimetric assay method to determine hydrogen peroxide concentration. The assay is monitored spectophotometrically at a desired wavelength. Each sample is corrected relative to a control sample and hydrogen peroxide concentration determined with respect to a standard curve. | 12-31-2015 |
20160131622 | SENSING DEVICE FOR SPECTROSCOPIC DETECTION OF HYDROGEN PEROXIDE - A sensing device for determining the presence of hydrogen peroxide is disclosed. The sensing device comprises a light guide having a distal portion terminating at a light guide tip and a proximal portion, wherein the light guide tip is proximal to a layer of Prussian blue (PB), which is pure (or essentially free of contaminants). The sensing device produces a fast linear response and is durable, due to the robustness and purity of the PB. The PB is chemically deposited proximal to, or on, the light guide tip using a single-source precursor technique. Methods of making and using the device also are disclosed herein. | 05-12-2016 |