Class 436/102 - Sulfur containing

Subclass of Class 436 - Chemistry: analytical and immunological testing
Definition: Subject matter wherein the acid determined contains sulfur.
No. of patents: 29
Last issue date: 09/28/2010

Number	Title	Issue Date
7803630	Method for detecting target compounds containing sulfenic acids using new reagents The present invention provides compounds of Formula I: wherein: R1 is a label (e.g., a detectable groups; an anti-tumor agent)s; L is present or absent and when present is a linking group; and x represents an int...	09/28/2010
7390669	Simultaneous and rapid determination of multiple component concentrations in a Kraft liquor process stream The present invention is a rapid method of determining the concentration of the major components in a chemical stream. The present invention is also a simple, low cost, device of determining the in-situ concentration of the major components in a chemical stream. In ...	06/24/2008
7347976	Methods and devices for removal of organic molecules from biological mixtures using a hydrophilic solid support in a hydrophobic matrix Methods and devices for removing small negatively charged molecules from a biological sample mixture that uses a solid-phase extraction material that includes a hydrophilic solid support at least partially embedded within a hydrophobic matrix. ...	03/25/2008
7285246	Hand-held fluid analyzer A hand-held device detects the presence of a preselected substance in the breath. A deformable housing forms a test chamber for interacting an indicator reagent with the breath. An ampoule positioned inside the housing is ruptured by manual pressure through the wall...	10/23/2007
7192560	Methods and devices for removal of organic molecules from biological mixtures using anion exchange Methods and devices for removing small negatively charged molecules from a biological sample mixture that uses an anion exchange material. ...	03/20/2007
6902937	Method for the determination of low-concentration anions in the presence of an excess of another anion This invention relates to methods and apparatus for detecting, quantifying, and/or identifying trace quantities of an anion in the presence of an excess of another anion. One apparatus comprises a sample loop having a first end adapted to be connected to a sample-in...	06/07/2005
6852543	Method and apparatus for measurement of sulfate A method and apparatus for sulfate analysis in a sample are provided. A portion of the sulfate contained in the sample is converted to sulfur dioxide, and at least a portion of the sulfur dioxide can be determined. The amount of sulfur dioxide determined can be used...	02/08/2005
6745132	Method for determining the molecular weight of a substance contained in a solution A systematic treatment of chemical equilibria is used to determine the average molecular weight of the Suwannee River fulvic acids directly from aqueous solutions. Additionally, parameters such as equilibrium constant and reaction stoichiometry can be calculated. Th...	06/01/2004
6528322	Analytical method and apparatus The invention relates to a method for qualitative, semi-quantitative or quantitative determination of at least two analytes in an aqueous sample containing or suspected of containing the analytes, which method comprises the steps of: (i) providing a flow ...	03/04/2003
6479018	Detection of a gaseous substance emanating from a layer of polymeric composition Detection of an evolving or diffusing gaseous substance emanating from an irradiated or thermolyzed layer of polymeric composition in semiconductor processing or similar processes is disclosed. The evolving or diffusing gaseous substance is detected by sp...	11/12/2002
6399391	Low cost total reduced sulfur analysis system A system and apparatus for analyzing stack gas for total reduced sulfur. The gas is withdrawn from a stack through a probe, filtered and regulated to a known temperature. The gas is then passed through a scrubbing column to remove sulfur dioxide and split...	06/04/2002
6245571	Method of characterizing the neutralization capacity of a lubricant and device for the implementation of this method The invention relates to the study and the manufacture of lubricants used in particular in diesel engines. According to the invention, the neutralization capacity of a lubricant comprising detergent additives is determined by a method which consists in re...	06/12/2001
6238589	Methods for monitoring components in the TiW etching bath used in the fabrication of C4s Monitoring techniques have been developed for direct/indirect determination of metal etching bath components and for managing their replenishment. The disclosed methods have been successfully employed to make TiW etching a robust process that provides min...	05/29/2001
6180412	Test for chlorine in water An improved test is described for chlorine in pool and spa water where potassium monopersulfate is used as an oxidizing agent and DPD is used as an indicator. N,N-bis(hydroxyethyl)-2-aminoethane sulfonic acid or bicine is used to mask or eliminate the pot...	01/30/2001
6177279	Ion extraction process for single side wafers A process for extracting inorganic ionic contaminants from a front surface of a silicon wafer for chemical analysis. The wafer is placed in a container upon a support which holds the wafer in a generally level orientation and isolates the wafer to inhibit...	01/23/2001
6103487	Method of treating cancer The instant invention provides for a method of inhibiting prenyl-protein transferases and treating cancer which comprises administering to a mammal a prenyl-protein transferase inhibitor which is efficacious in vivo as an inhibitor of geranylgeranyl-prote...	08/15/2000
5994147	System and method for determining acid-gas (CO₂, H₂ S) loadings in an alkanolamine system A method for determining the concentration of acid-gases in an amine-regeneration system, such as is typically found in a natural gas refining plant, having a device for measuring the pH of the system from which the concentration of the acid-gases complex...	11/30/1999
5800782	Apparatus for quantitative determination of total base or acid number of oil The total base number of an oil sample of measured volume is determined by solvating the oil sample, adding a predetermined amount of acidic species to the solvated sample to react the acidic species with any basic species contained in the oil sample, ext...	09/01/1998
5798268	Measuring free acid concentration in solution A device for measuring free acid concentrations in a solution bearing an ionic constituent therein, forms a test sample of the solution and measures the concentration of the ionic constituent in solution in the test sample. The device measures conductivit...	08/25/1998
5494640	Device for identifying at least one gaseous component in a gaseous or liquid sample A sensor device is disclosed for identification of a gaseous component in a gaseous or liquid sample. The sensor device comprises an optode membrane having sensitivity for the gaseous component to be identified. The optode membrane incorporates two ionoph...	02/27/1996
5426053	Optimization of acid strength and total organic carbon in acid processes (C-2644) A method and system to optimize the acid strength and level of total organic carbon (TOC) of process streams in which specific hydrocarbons are extracted from hydrocarbon mixtures by sulfuric acid....	06/20/1995
5366898	Method for quantitative determination of total base or acid number of oil The total base number of an oil sample of measured volume is determined by solvating the oil sample, adding a predetermined amount of acidic species to the solvated sample to react the acidic species with any basic species contained in the oil sample, ext...	11/22/1994
4780417	Rapid extraction, separation, and detection method for a separate analysis of free and total sulfites in foods by ion chromatography A process for the rapid extraction, separation, and detection of free and total sulfites in food is disclosed. The process comprises the steps of (a) extracting sulfites from a sample in the presence of a medium having a selected pH to produce an extracta...	10/25/1988
4749552	Automatic titration analysis apparatus Automatic titration analysis apparatus includes a sampling mechanism, a titration mechanism, an analysis mechanism and a control mechanism. The sampling mechanism takes a prescribed quantity of a sample for analysis in accordance with a first signal. The ...	06/07/1988
4554255	Determination of sulfurous acid in liquids and an apparatus therefor A method and an apparatus providing a simple and speedy determination of a slight amount of sulfurous acid contained in liquids by means of pH meters, based on the Modified Rankine's method in principle, and wherein the pH of a first sample of liquid is d...	11/19/1985
4300910	Test vial construction and method of measuring gas, vapor and aerosol components in an air sample A method of measuring gas, vapor and aerosol components in an air sample, using a gas detecting device, includes a glass tube having openable ends for the flow of test gas therethrough and a filter therein entraining components to be measured, comprises, ...	11/17/1981
4279618	Method and apparatus for analysis of total atmospheric sulfuric acid content A method and apparatus for determining the level of sufuric acid in atmospheric air which also contains other interferrants, including a sampling cycle to collect sulfuric acid on the walls of a collection chamber tube which is cooled, while at the same t...	07/21/1981
4271120	Corrosive fluid detector A device for detecting and indicating the presence of corrosive fluids in a specified volume, as in the insulating blanket surrounding the pipes in a heavy water plant, is disclosed. The device includes a housing containing a primary indicator such as a b...	06/02/1981
4118194	Sensor for fluid components An electrochemical device for sensing fluid components, particularly gases, comprises a composition with which the component reacts to liberate elemental chlorine, bromine, fluorine or iodine. The chlorine, bromine, fluorine or iodine passes through a par...	10/03/1978

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Class 436/102 - Sulfur containing