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| Number | Title | Issue Date |
| 8114676 | Carbon measurement in aqueous samples using oxidation at elevated temperatures and pressures Apparatus and methods for measuring the concentrations of organic and inorganic carbon, or of other materials, in aqueous samples are described, together with related, specially adapted components and sub-assemblies and related control, operational and monitoring sy... | 02/14/2012 |
| 8101418 | Carbon measurement in aqueous samples using oxidation at elevated temperatures and pressures Apparatus and methods for measuring the concentrations of organic and inorganic carbon, or of other materials, in aqueous samples are described, together with related, specially adapted components and sub-assemblies and related control, operational and monitoring sy... | 01/24/2012 |
| 8101417 | Carbon measurement in aqueous samples using oxidation at elevated temperatures and pressures Apparatus and methods for measuring the concentrations of organic and inorganic carbon, or of other materials, in aqueous samples are described, together with related, specially adapted components and sub-assemblies and related control, operational and monitoring sy... | 01/24/2012 |
| 8101419 | Carbon measurement in aqueous samples using oxidation at elevated temperatures and pressures Apparatus and methods for measuring the concentrations of organic and inorganic carbon, or of other materials, in aqueous samples are described, together with related, specially adapted components and sub-assemblies and related control, operational and monitoring sy... | 01/24/2012 |
| 8101420 | Carbon measurement in aqueous samples using oxidation at elevated temperatures and pressures Apparatus and methods for measuring the concentrations of organic and inorganic carbon, or of other materials, in aqueous samples are described, together with related, specially adapted components and sub-assemblies and related control, operational and monitoring sy... | 01/24/2012 |
| 7803631 | Process and arrangement for determining water content Process for determination of a water content material, in particular organic carbon content and/or nitrogen, in which an aqueous sample is evaporated and combusted in at least one heating vessel equipped with a heating facility and the combustion product is fed in a... | 09/28/2010 |
| 7662637 | Sensitive detection of urea and related compounds in water Methods and apparatus (FIG. 4a) are disclosed for selective and very sensitive detection of certain hydrolyzable compounds, especially urea, in water by hydrolyzing said hydrolyzable compounds in a sample of the water to one or more carbon dioxide grou... | 02/16/2010 |
| 7334486 | Device and method for measuring fluid fluxes, solute fluxes and fracture parameters in fracture flow systems An improved method and apparatus for simultaneously monitoring the magnitudes and directions of fluid fluxes and dissolved contaminants fluxes of a general flow system in both simply and multiply screened monitoring wells as well as unscreened boreholes is provided.... | 02/26/2008 |
| 7329877 | Photoelectrocatalytic sensor for measuring oxidizable impurities in air A photoelectrocatalytic sensor system for measuring oxidizable impurities in air. The sensor system may include a transistor having an electrode and a channel for the flow of current, a photocatalytic material coated onto the electrode of the transistor, a light sou... | 02/12/2008 |
| 7275420 | Fluid sensor fixture for dynamic fluid testing A system that facilitates measurement, analysis, and automatic maintenance of fluid comprises a fluid, and a casing that includes a plurality of apertures is immersed in the fluid. The apertures are opened to permit the fluid to enter the casing and closed to confin... | 10/02/2007 |
| 7273567 | Energy-activated compositions for controlled sustained release of a gas A composition for energy-controlled generation and release of at least one gas, which includes an energy-activated catalyst capable of being activated by electromagnetic energy, and a solid or a liquid containing anions capable of being oxidized by the activated cat... | 09/25/2007 |
| 7247498 | Device to alternately supply a fluid to an analyzer Apparatus and methods for supplying a portion of a fluid stream and, alternately, a fluid of known composition and concentration to an analyzer are provided. The fluid stream is directed through a series of connected chambers formed in an integral housing. A samplin... | 07/24/2007 |
| 7214481 | Charcoal stabilization of phenyl phosphates The invention discloses methods, compositions and kits for stabilizing a solubilized phenyl phosphate, preferably paranitrophenyl phosphate (PNPP), using charcoal. Also disclosed are methods, compositions and kits for recycling solubilized phenyl phosphate, preferab... | 05/08/2007 |
| 7205153 | Analytical reagent for acid copper sulfate solutions Embodiments of the invention provide an analytical method and analytical reagent solutions for determining the concentration of electrolyte components, such as copper, acid and chloride constituents in an acid or basic metal plating bath using a chemical analyzer. C... | 04/17/2007 |
| 7189358 | Integrated micropump analysis chip and method of making the same An integrated micropump or a plurality of integrated micropumps are communicated to a plurality of analysis chambers. A plurality of integrated analysis chambers include integrated analysis devices to test a fluid for an analyte. The micropumps continuously or perio... | 03/13/2007 |
| 7081182 | Method and apparatus for automatically measuring the concentration of TOC in a fluid used in a semiconductor manufacturing process The present invention relates to a method and apparatus for automatically measuring the concentration of total organic carbon (TOC) in chemicals and ultra-pure water that are used in a wet etch process. The apparatus includes a sampling line extending from a process... | 07/25/2006 |
| 7062962 | Portable apparatus and method for measuring hydraulic features in rivers and streams A portable apparatus for measuring characteristics of hydraulic features in rivers and streams that are unwadeable. The apparatus consists of a tripod base, a horizontal boom that articulates on the tripod, a carriage configured to travel on the boom, and a measurin... | 06/20/2006 |
| 7029921 | Apparatus for rapid measurement of aerosol bulk chemical composition An apparatus for continuous on-line measurement of chemical composition of aerosol particles with a fast time resolution is provided. The apparatus includes an enhanced particle size magnifier for producing activated aerosol particles and an enhanced collection devi... | 04/18/2006 |
| 7001717 | Charcoal stabilization of phenyl phosphates The invention discloses methods, compositions and kits for stabilizing a solubilized phenyl phosphate, preferably paranitrophenyl phosphate (PNPP), using charcoal. Also disclosed are methods, compositions and kits for recycling solubilized phenyl phosphate, preferab... | 02/21/2006 |
| 6960920 | Method for correcting measurement error and electronic component characteristic measurement apparatus A high-precision, multi-port compatible, relative correction method and apparatus for correcting measurement errors covering an increase in the number of ports of a non-coaxial electronic component, in which a relative correction adapter 31 is provided that i... | 11/01/2005 |
| 6960477 | Closed heat-decomposing appliance, pretreatment method of sample using it, analytical method and device therefor Disclosed are a closed heat-decomposing appliance comprising a heating section with one side closed and other side having common ground portion, screw portion or O-ring-mounted portion and a closed introducing section that allows to connect to this heating section a... | 11/01/2005 |
| 6949742 | Method and a system for producing electrospray ions A system for producing electrospray ions includes a thermal inkjet material dispenser configured to selectively emit a plurality of sample material particles, and an electrically conducting grid disposed in proximity with the thermal inkjet material dispenser, the g... | 09/27/2005 |
| 6941825 | Analytical devices based on diffusion boundary layer calibration and quantitative sorption A method and device for determining the concentration of analytes in a sample. The device has a surface with an extraction coating thereon. The method is carried out while the sample is highly agitated to maintain a substantially constant boundary layer. The sample ... | 09/13/2005 |
| 6942718 | Orientation insensitive combined liquid reservoir and gas/liquid separator In accordance with the present invention, a system for separating gas and liquid phases from a mixed phase system is provided. Furthermore, the present invention provides for the reliable separation of liquid and gas phases, regardless of the orientation of the syst... | 09/13/2005 |
| 6924495 | Heat controlled ultraviolet light apparatus and methods of sanitizing objects using said apparatus A heat controlled ultraviolet light apparatus includes a source of ultraviolet light, a cover, and a heating or cooling element that heats/cools the space or gap between the ultraviolet light source and the cover. Accordingly, the ultraviolet light source may be mai... | 08/02/2005 |
| 6872291 | Method and device for detecting and controlling the level of biological contaminants in a coating process The presence of biological contaminants in a liquid coating composition is determined by measuring the carbon dioxide content of the atmosphere above the liquid and comparing the measured carbon dioxide level to a baseline carbon dioxide level. A biocide can be adde... | 03/29/2005 |
| 6841390 | Method for sensing stickies A real-time system and method for measuring stickies by separating high molecular weight non-fibrous species from low molecular weight non-fibrous species and sensing the concentration of the high molecular weight species. Specifically, a fiber slurry containing sti... | 01/11/2005 |
| 6793889 | Wide-range TOC instrument using plasma oxidation Total organic carbon in an aqueous or gaseous sample is measured by admitting the sample and an oxidant gas to a cell transparent to plasma, establishing a relatively low energy plasma in the cell, and measuring the CO2 thus produced using FTIR, NDIR, or ... | 09/21/2004 |
| 6741084 | Device for measuring the oxidizable carbon of a liquid and a method for the use thereof The present invention provides a device useful in the photo-oxidation of a sample liquid and in the measurement of the oxidized carbon content thereof. The device includes a cell, at least two elongate probes, and a temperature sensitive element. The cell includes a... | 05/25/2004 |
| 6737276 | Method and device for determining the total organic carbon content in liquids, especially ultra-pure water A method and an apparatus is provided for the determination of the content of organic carbon (TOC) of liquids, in particular ultra-pure water, wherein a liquid sample under investigation is located in a reaction chamber and carbon present in the liquid is statically... | 05/18/2004 |
| 6734021 | Method and apparatus for measuring organic carbon content The present invention relates to a method and apparatus for measuring the organic carbon content (TOC) in a test liquid by irradiating the test liquid, such as ultrapure water, with ultraviolet radiation and measuring the conductivity of the test liquid that changes... | 05/11/2004 |
| 6723565 | Pulsed-flow total organic carbon analyzer Methods and apparatus are disclosed for determination of the total concentration of organic carbon compounds in aqueous process streams utilizing a pulsed-flow technique for irradiating a water sample in a chamber (3) with UV or similar wavelength radiation. | 04/20/2004 |
| 6653142 | Automatic determination of the contamination of aqueous cleaning solutions with carbonaceous compounds A method of automatically determining the content of inorganic carbon and/or total organic carbon in an aqueous purifying solution wherein, in program-controlled manner, (a) a sample of a predetermined volume is taken from the aqueous purifying solution; ... | 11/25/2003 |
| 6623974 | Method and apparatus for the analysis of a liquid carrying a suspension of organic matter The invention provides an ozone hydroxy radical analysis method for a liquid carrying a suspension of organic matter. The analyser includes a reactor vessel 2 having sample inlets and outlets 3 and 4 respectively for a liquid stream 5. The reactor vessel ... | 09/23/2003 |
| 6541268 | Carbon dioxide sensor and a method of determining partial pressure of carbon dioxide A carbon dioxide sensor including a closed chamber having as a wall substantially water-tight, carbon dioxide-permeable membrane and containing two electrodes. The chamber contains a film of de-ionized water contacting the membrane and both of the electro... | 04/01/2003 |
| 6506345 | Apparatus for rapid measurement of aerosol bulk chemical composition An apparatus and method for continuous on-line measurement of chemical composition of aerosol particles with a fast time resolution are provided. The apparatus includes a modified particle size magnifier for producing activated aerosol particles and a col... | 01/14/2003 |
| 6451613 | Instruments for measuring the total organic carbon content of water An improved instrument for measuring the total organic carbon content of water provides substantially instantaneous TOC measurements that are repetitively calibrated, provides substantially improved accuracy of results in a circuit providing improved nois... | 09/17/2002 |
| 6447725 | Total organic carbon meter An ultrapure water trap is provided for retaining condensed water of water vapor which is formed in a TC oxidative reaction part, and a passage is so connected that an automatic sample injector can collect ultrapure water from the ultrapure water trap for... | 09/10/2002 |
| 6444474 | Microfluidic system for measurement of total organic carbon This invention provides devices for the measurement of total organic carbon content in water samples. The device has a microfluidic sample cell with a sample channel for receiving a water sample wherein the water sample can be irradiated with UV radiation... | 09/03/2002 |
| 6375900 | Carbon analyzer with improved catalyst A carbon analyzer, is provided which includes a combustion chamber having a platinum on titania catalyst. The combustion chamber and catalyst are also provided. A method for analyzing carbon-containing specimens with such an analyzer is also provided as w... | 04/23/2002 |
