Sulfur Containing Patents (Class 436/119)
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Patent number: 11884638Abstract: The present disclosure relates to a novel compound or a salt thereof, a composition for detecting cysteine, a fluorescent probe, and a composition for diagnosing cancer, which contain the same, a method for detecting cysteine, a method for providing information for diagnosing cancer, and a method for producing the novel compound. According to the present disclosure, there may be provided a method of synthesizing and purifying a fluorescent probe for cysteine detection and applying the same to diagnose cervical cancer by detecting cysteine in human urine.Type: GrantFiled: October 28, 2021Date of Patent: January 30, 2024Inventors: Do Kyoung Kim, Chang Wook Jeong, Jong Min An
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Patent number: 11181022Abstract: Various embodiments may include a method for monitoring a nitrogen oxide trap comprising: monitoring a storage capacity of the nitrogen oxide trap; deactivating nitrogen oxide trap regeneration based on the monitored storage capacity; and upon a predetermined event, reactivating nitrogen oxide trap regeneration.Type: GrantFiled: May 4, 2017Date of Patent: November 23, 2021Assignee: VITESCO TECHNOLOGIES GMBHInventor: Hong Zhang
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Patent number: 10634610Abstract: A method for determining a basicity index of a liquid body comprising: (a) detecting an intensity of an infrared signal passing through a sample of the liquid body; (b) calculating a transmittance value of infrared waves through the sample for p wave numbers, wherein p in a natural integer greater than or equal to two; and (c) determining the basicity index of the liquid body, BN, wherein of BN=Tr·M(p×1)+R, Tr is a set of transmittance values calculated in step b, M(p×1) is a set of data of a model, the set of data containing coefficients determined from measured basicity index values and measured transmittance values of reference liquid bodies, and R is a residue of the model, determined from the measured basicity index values and the measured transmittance values of the reference liquid bodies.Type: GrantFiled: July 26, 2016Date of Patent: April 28, 2020Assignee: WIKA TECH S.A.S.Inventors: Mustapha Adjali, Raphael Juston, François Chaudoreille
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Patent number: 10520401Abstract: In order to secure the dilution ratio accuracy of diluted exhaust gas while making it possible to accurately measure the mass of PM, an exhaust gas measurement system that has a diluted exhaust gas flow path through which the diluted exhaust gas produced by diluting exhaust gas flows and collects particulate matter in the diluted exhaust gas by a filter provided in the diluted exhaust gas flow path for measurement is adapted to include a bypass flow path that branches from the upstream side of the filter in the diluted exhaust gas flow path and merges with the downstream side of the filter; and a separation flow rate control part that while flowing the diluted exhaust gas through the filter, controls the separation flow rate of the diluted exhaust gas flowing through the bypass flow path.Type: GrantFiled: April 29, 2016Date of Patent: December 31, 2019Assignee: HORIBA, LTD.Inventor: Yoshinori Otsuki
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Patent number: 10458964Abstract: Methods for measuring the sulfur content in a plurality of individual sulfur-containing fiber or article samples, comprising: a) contacting a plurality of samples with a solution comprising potassium hydroxide to convert the sulfur to potassium sulfate; b) concurrently and individually combusting the plurality of samples from step a) in a furnace at a temperature of greater than 650° C. to remove essentially all organic materials to produce a plurality of residues; c) dissolving each of the pluralities of residue in concentrated nitric acid to form individual residue solutions; and d) analyzing the individual residue solutions with Inductively Coupled Plasma (ICP) Emission Spectrometry to determine the sulfur content of each sample.Type: GrantFiled: September 29, 2017Date of Patent: October 29, 2019Assignee: DUPONT SAFETY & CONSTRUCTION INC.Inventor: Jonathan Samuel Tschritter
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Patent number: 9891201Abstract: The present invention relates to a method of analyzing the components of a flavor sample comprising the steps of a) preparing a composition comprising a number (n) of aroma compounds to form a replica of a flavor; b) preparing a further composition comprising the same aroma and/or taste compounds with one of the components being reduced in amount by from 5 to 95% compared to the amount in the first composition; and c) comparing the aroma and/or taste of the first and second compositions.Type: GrantFiled: September 10, 2013Date of Patent: February 13, 2018Assignee: Mars, IncorporatedInventors: Joanne Hort, Andrew Taylor, Neil Desforges
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Patent number: 9465024Abstract: A method to measure all relevant biologic hydrogen sulfide pools, namely free hydrogen sulfide, acid-labile sulfide, and bound sulfane sulfur, has been developed. This new method involves selective liberation, trapping and derivatization of labile hydrogen sulfide. The total labile sulfide, including the contribution of the bound sulfane sulfur pool, the acid-labile pool, and free H2S, was measured by incubating the sample with a reducing agent, TCEP (Tris(2-carboxyethyl)phosphine hydrochloride), to reduce disulfide bonds in an acid solution. This method was used to measure the three sulfide pools in blood samples from mice and from humans. This method can be used for research, environmental, and clinical diagnostic purposes in determining hydrogen sulfide bioavailability in biological or other samples.Type: GrantFiled: March 14, 2013Date of Patent: October 11, 2016Assignee: Board of Supervisors of Louisiana State University and Agricultural and Mechanical CollegeInventors: Christopher G. Kevil, Xinggui Shen, Elvis A. Peter
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Patent number: 9023653Abstract: A method of labeling a sulfenic acid (—SOH) group of a cysteine residue in a protein; or peptide, comprises contacting said protein or peptide with a beta-ketoester to covalently couple said beta-ketoester to said cysteine residue and form a beta-ketoester-labeled cysteine residue in said protein or peptide.Type: GrantFiled: August 24, 2012Date of Patent: May 5, 2015Assignee: Wake Forest University Health SciencesInventors: Cristina M. Furdui, Allen W. Tsang, Jiang Qian
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Patent number: 8993336Abstract: The invention relates in part to a Sulfur standard gas in the ppb range in a matrix gas. The Sulfur standard gas is maintained in a cylinder under pressure sufficient to compress the majority of the Sulfur gas and into a liquid matrix.Type: GrantFiled: May 4, 2012Date of Patent: March 31, 2015Assignee: Air Liquide America Specialty Gases LLCInventor: Yang Qin
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Patent number: 8986998Abstract: Disclosed herein is a method for identifying the compounds contributing to a pungent odor from an air conditioner, a method for artificially reproducing the pungent odor, and preparing a corresponding pungent odor composition. Through the analysis method of the present invention, the compounds contributing to the pungent odor from an air conditioner may be identified and quantified. The pungent odor may be reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced pungent odor may provide significant data required for development of an apparatus and a method for removing specific odors.Type: GrantFiled: November 30, 2012Date of Patent: March 24, 2015Assignee: Hyundai Motor CompanyInventors: Tae Hee Lee, Ji Wan Kim
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Publication number: 20150051111Abstract: A method is described for mass spectrometric analysis of a sample comprising phenolic OH, such as a steroid comprising a phenolic OH, using a quaternary amino oxy Cookson (QAOC) reagent. The QAOC reagent can improve ionization and fragmentation properties of phenolic OH samples, which can thereby improve quantitation and identification. The method can include derivatizing the phenolic OH sample with the QAOC reagent to create an adduct and analyzing the adduct using mass spectrometry. Derivatization of the sample can be a one-step reaction where the QAOC reagent comprises an aminooxy MS tag or can be a multi-step reaction, where the adduct is formed by the reaction of carbonyl substituted PTAD based reagent and the sample followed by combination with an aminooxy MS tag. The sample can also be enriched prior to reacting it with the reagent. The method can also allow for multiplexing.Type: ApplicationFiled: January 16, 2013Publication date: February 19, 2015Inventors: Subhakar Dey, Subhasish Purkayastha
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Patent number: 8932862Abstract: A method of determining the solubility of a compound in a selected solvent is provided that does not require determination of, or use of, standards having known concentrations of the compound. In one aspect, the method can include preparation of a mixture where not all of a compound is dissolved in the provided solvent, separating undissolved compound from the solvent, and direct determination of the amount of the compound dissolved in the solvent. Methods adapted for use include those where a multiplicity of compounds or solvents are tested in parallel. Devices adapted for these methods are also provided by the present disclosure.Type: GrantFiled: February 13, 2004Date of Patent: January 13, 2015Assignee: Analiza, Inc.Inventors: Arnon Chait, Boris Y. Zaslavsky
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Patent number: 8921113Abstract: A buffer kit includes a first eluent and second eluent. The first eluent solution includes at least four buffer salts where at least three of the four buffer salts are a monovalent buffer salt, have a net negative charge or a net neutral zwitterionic charge, and include a sulfonate group and an amine. The second eluent solution includes at least four buffer salts where at least three of the four buffer salts are a monovalent buffer salt, have a net negative charge or a net neutral zwitterionic charge, and include a sulfonate group and an amine. The first eluent solution has a first pH and the second eluent solution has a second pH where the first pH and second pH are different values. The buffer kit provides a linear pH gradient that forms an approximately straight line from at least the first pH to the second pH.Type: GrantFiled: December 21, 2012Date of Patent: December 30, 2014Assignee: Dionex CorporationInventors: Shanhua Lin, Christopher A. Pohl
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Patent number: 8906694Abstract: Disclosed herein are methods of detecting the presence and/or concentration of nitric oxide using organometallic complexes and changes in fluorescence.Type: GrantFiled: March 26, 2013Date of Patent: December 9, 2014Assignee: The Florida International University Board of TrusteesInventors: Konstantinos Kavallieratos, Nikolaos M. Tsoukias, Lissette I. Lozano-Lewis
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Patent number: 8895313Abstract: Provided are certain benzothiazole, imidazothiazole, imidazopyrimidine and imidazopyridine compounds, including, for example: formula (I) and pharmaceutically and physiologically acceptable salts, hydrates, and solvates thereof. Such compounds can be used as diagnostic ligands or labels of tau protein and PHF.Type: GrantFiled: September 23, 2009Date of Patent: November 25, 2014Assignee: Wista Laboratories Ltd.Inventors: Steven John Kemp, Lynda Jane Storey, John Mervyn David Storey, Janet Rickard, Charles Robert Harrington, Claude Michel Wischik, Scott Clunas, Tobias Kerst Heinrich
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Patent number: 8859291Abstract: The invention provides methods for isolating a target molecule from a sample. In an embodiment, the method involves contacting a sample with a capture agent, the agent comprising a siderophore and a transition metal cation, under conditions wherein the agent is capable of binding a target molecule to form a target molecule-capture agent complex, wherein the target molecule is selected from the group consisting of a phosphorylated molecule, a nitrotyrosine-containing molecule and a sulfated molecule, and separating the target molecule-capture agent complex from the sample, thereby isolating the target molecule from the sample. Also provided are methods for determining the presence of a target molecule in a sample, that involve contacting a sample with a capture agent, the agent comprising a siderophore and a transition metal cation.Type: GrantFiled: June 9, 2005Date of Patent: October 14, 2014Assignee: PerkinElmer LAS, Inc.Inventors: Roger Bossé, Wayne F. Patton, Philippe Roby
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Publication number: 20140251906Abstract: The invention provides methods and compositions for detection and removal of sulfate from a liquid. The method provides much faster removal of sulfate than the prior art does and does so while requiring the use of far less aluminum. The method involves sequentially adding an acidic to neutral pH generating aluminum agent to the liquid, an alkaline pH generating aluminum agent to the liquid, after having added the acidic to neutral pH generating aluminum agent, and an alkaline calcium agent to the liquid. The most efficient rate possible can be obtained by also using a fluorophore to precisely determine the amount of sulfate in the liquid.Type: ApplicationFiled: March 6, 2013Publication date: September 11, 2014Applicant: Ecolab USA Inc.Inventors: Nicholas S. Ergang, Ronald V. Davis
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Patent number: 8796035Abstract: The invention relates to a method and to a device for sulfur characterization and quantification in a sample of sedimentary rocks or of petroleum products wherein the following stages are carried out: heating said sample in a pyrolysis oven (1) in a non-oxidizing atmosphere, oxidizing part of the pyrolysis effluents and continuously measuring the amount of SO2 generated by said part after oxidation, then transferring the pyrolysis residue of said sample into an oxidation oven (1?) and continuously measuring the amount of SO2 contained in the effluents resulting from said oxidation heating.Type: GrantFiled: October 27, 2009Date of Patent: August 5, 2014Assignees: IFP Energies Nouvelles, Vinci TechnologiesInventors: Jean Espitalie, Roland Antonas, Violaine Lamoureux-Var, Gérémie Letort, Daniel Pillot, Valérie Beaumont, Frank Haeseler
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Publication number: 20140212983Abstract: An apparatus for detecting a chemical of interest in a fluid or estimating a concentration of the chemical in the fluid includes: a carrier configured to be conveyed through a borehole penetrating an earth formation; a first temperature sensor disposed at the carrier and configured to sense a temperature of the fluid and provide a first temperature output; and a second temperature sensor disposed at the carrier and covered with an exothermic reaction material that experiences an exothermic reaction when exposed to the chemical of interest and configured to sense a temperature and provide a second temperature output. The apparatus further includes a processor coupled to the first temperature sensor and the second temperature sensor and configured to detect the chemical or estimate the concentration using the first temperature output and the second temperature output.Type: ApplicationFiled: January 29, 2013Publication date: July 31, 2014Applicant: Baker Hughes IncorporatedInventor: Rocco DiFoggio
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Patent number: 8785207Abstract: The present invention relates generally a method and apparatus for measuring multiple parameters in-situ in a sample collected from an environmental system via a single device. In one embodiment, the method includes collecting the sample from said environmental system via the single device, measuring a first parameter of the sample in-situ via the single device, adding a reagent tot the sample within the single device to create a reagent infused sample and measuring a second parameter of the sample in-situ via the single device using the reagent infused sample.Type: GrantFiled: September 11, 2009Date of Patent: July 22, 2014Assignee: SRI InternationalInventors: Ryan J. Bell, R. Timothy Short, Strawn K. Toler, Robert H. Byrne
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Patent number: 8709820Abstract: A concentration measuring apparatus for hydrogen sulfide includes an absorbing liquid that can absorb gaseous hydrogen sulfide as sulfide ion; a hollow fiber membrane contactor that contacts a gas flow with a flow of the absorbing liquid through a membrane, so that the absorbing liquid absorbs gaseous hydrogen sulfide in the gas flow as sulfide ion; a pump for a first channel that feeds the absorbing liquid to the hollow fiber membrane contactor; an oxidizer that exothermically reacts with sulfide ion; a pump for a second channel that feeds the oxidizer to the absorbing liquid; a first thermometer that measures a temperature of the absorbing liquid before the sulfide ion that the absorbing liquid has absorbed exothermically reacts with the oxidizer; and a second thermometer that measures the temperature of the absorbing liquid after the sulfide ion that the absorbing liquid has absorbed exothermically reacts with the oxidizer.Type: GrantFiled: February 28, 2011Date of Patent: April 29, 2014Assignees: Japan Cooperation Center, Petroleum, United Arab Emirates UniversityInventors: Sayed Marzouk, Mohamed Al Marzouqi
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Patent number: 8697451Abstract: A sulfur breakthrough monitoring assembly for use in a fuel utilization system for detecting sulfur-containing compounds in desulfurized fuel, said monitoring assembly comprising: a heater for heating desulfurized fuel to a predetermined temperature, the predetermined temperature being between 450° C. and 600° C., a sulfur breakthrough detector adapted to receive heated fuel from the heater and including at least a reforming catalyst bed for reforming the heated fuel and a plurality of temperature sensors including a first temperature sensor for sensing temperature of the heated fuel before the fuel is conveyed through the reforming catalyst bed and a second temperature sensor for sensing temperature in the reforming catalyst bed, and a controller for determining whether concentration of the sulfur-containing compounds in the fuel exceeds a first predetermined concentration based on temperature outputs from the first and second temperature sensors.Type: GrantFiled: November 22, 2010Date of Patent: April 15, 2014Assignee: FuelCell Energy, Inc.Inventor: Joseph M. Daly
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Patent number: 8632726Abstract: The invention relates to a device for producing CO2, N2 and/or SO2 from a sample for a quantitative analysis of the sample, comprising a reactor structure and metals acting in an oxidizing manner or metal oxides in the reactor. According to the invention, the reactor structure has at least two zones through which the sample can flow, which is to say a first zone with reactor metal and reservoir metal, or only reactor metal, and following the first zone, a second zone with reactor metal and reservoir metal, or only reservoir metal, wherein both metals can form oxides, and wherein the ratio of the reactor metal to the reservoir metal in the first zone is greater than in the second zone.Type: GrantFiled: March 25, 2009Date of Patent: January 21, 2014Assignee: Thermo Fischer Scientific (Bremen) GmbHInventor: Michael Krummen
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Patent number: 8632991Abstract: Aspects of the invention include methods for enhancing blood coagulation in a subject. In practicing methods according to certain embodiments, an amount of a non-anticoagulant sulfated polysaccharide (NASP) is administered to a subject to enhance blood coagulation in the subject. Also provided are methods for preparing a NASP composition having blood coagulation enhancing activity. Compositions and kits for practicing methods of the invention are also described.Type: GrantFiled: January 13, 2011Date of Patent: January 21, 2014Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Michael Dockal, Hartmut Ehrlich, Friedrich Scheiflinger
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Patent number: 8609427Abstract: A sulfur dioxide sensor comprising a first beam having a functionalized sensing surface capable of sensing sulfur dioxide, the first beam capable of producing a first resonant frequency; and a second beam having a functionalized reference surface not capable of sensing sulfur dioxide, the second beam capable of producing a second resonant frequency, wherein differential sensing of sulfur dioxide may be performed, further wherein the first beam is functionalized with a liquid phase of a first polymeric compound and the second beam is functionalized with a liquid phase of a second polymeric compound is provided. In one embodiment, the sensor is a nano-sensor capable of low drift accurately detecting sulfur dioxide levels at the zeptograms level. Methods of making and using a sulfur dioxide sensor are also provided.Type: GrantFiled: December 7, 2010Date of Patent: December 17, 2013Assignee: Honeywell Romania s.r.l.Inventors: Bogdan Catalin Serban, Cornel P. Cobianu, Mihai N. Mihaila, Viorel Georgel Dumitru
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Patent number: 8586383Abstract: The invention relates to a device (10) for detection of harmful substances with a measurement unit (28) for measuring at least one harmful substance and an evaluation unit (30) for determining the concentration of the at least one harmful substance. The invention also relates to a method for detecting harmful substances in a gas mixture. It is hereby provided that the gas mixture is tested for a gaseous harmful substance or simultaneously for several gaseous harmful substances, wherein the gaseous harmful substance or the gaseous harmful substances is/are measured with different sensor means, and the gaseous harmful substances are optionally chemically modified such that a measurement is performed with the existing sensor means.Type: GrantFiled: May 13, 2011Date of Patent: November 19, 2013Assignee: Airsense AnalyticsInventors: Andreas Walte, Wolf Münchmeyer
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Patent number: 8574917Abstract: Disclosed is a pigment that changes color upon exposure to hydrogen sulfide gas. The pigment may be ground or otherwise reduced to small particles and used in coatings, dyes, paints or inks. Potential applications for paints and inks include the production of warning indicators for the presence of hydrogen gas in areas where such presence may pose a hazard. Warning decals may be printed with pigmented ink and posted in areas of potential hydrogen hazard. In the presence of hydrogen sulfide gas, the decals can display a warning by causing a change in the color of a printed message. Objects may also be coated with pigmented paints so that if a hydrogen sulfide leak occurs from within or nearby the object, the color of the object changes to provide a warning of the presence of leaked hydrogen sulfide. Example applications of such painted objects include any industrial process containing hydrogen sulfide.Type: GrantFiled: November 26, 2008Date of Patent: November 5, 2013Assignee: Element One, Inc.Inventors: William Hoagland, David K. Benson, Rodney D. Smith
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Publication number: 20130224873Abstract: A method is provided for detecting sulphur-containing species (such as thiophosphorous esters, in particular phosphorylating agents), in which a suspected sulphur-containing species is brought into contact with a tetrazolium compound in the presence of base, typically at a pH of at least 8. A device, kit and tetrazolium compounds for use in such a method are also disclosed.Type: ApplicationFiled: October 17, 2011Publication date: August 29, 2013Inventors: Ian Fallis, Ian Morgan
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Patent number: 8518706Abstract: The invention relates to a method for sampling a sulphur-containing solid product including supplying a gas flow comprising hydrogen sulphide, bringing the gas flow into contact with a solid reagent and reacting the solid reagent with the hydrogen sulphide contained in the gas flow, the reaction fixing the sulphur of the hydrogen sulphide by forming a sulphur-containing solid product which is different in color from the solid reagent, and recovering the sulphur-containing solid product. The invention also relates to a device suitable for the implementation of this method.Type: GrantFiled: April 20, 2009Date of Patent: August 27, 2013Assignee: Total S.A.Inventors: Daniel Dessort, Robert Le Van Loï, Nadine Loubere
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Patent number: 8513023Abstract: A method of determining the functional activity of the MRP2 and/or MRP3 efflux pathway of a human or animal subject was disclosed. The method comprises (i) determining the level of a bile acid derivative in the blood of said human or animal subject at a predetermined time interval after introducing an amount of the bile acid derivative into the subject, and (ii) using the determination obtained in step (i) to indicate the functional activity of the MRP2 and/or MRP3 efflux pathway of the subject.Type: GrantFiled: October 25, 2012Date of Patent: August 20, 2013Assignee: Norgine BVInventors: Hans-Jürgen Gruss, Ronald Oude Elferink, Dirk De Waart, Bruno Stieger
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Publication number: 20130130397Abstract: Disclosed are compositions and methods useful for the rapid and facile simultaneous detection of malodorous bacterial metabolites in samples of expired breath and other fluids. The invention enables estimation, by simple visual inspection and comparison against standards, of the concentration of polyamines and volatile sulfur compounds in the micromolar to millimolar range.Type: ApplicationFiled: January 17, 2013Publication date: May 23, 2013Applicant: ALT BIOSCIENCE, LLCInventor: ALT BIOSCIENCE, LLC
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Publication number: 20130115707Abstract: A method for removing sulfur-comprising compounds from a hydrocarbonaceous gas mixture, in which an adsorber material is brought into contact with the hydrocarbonaceous gas mixture, wherein the adsorber material comprises a material that adsorbs sulfur-comprising compounds and, in addition, comprises at least one transition metal compound which changes color thereof by reaction with the sulfur-comprising compounds.Type: ApplicationFiled: November 2, 2012Publication date: May 9, 2013Applicant: BASF SEInventor: BASF SE
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Patent number: 8435792Abstract: Aspects of the invention include methods for enhancing blood coagulation in a subject. In practicing methods according to certain embodiments, an amount of a non-anticoagulant sulfated polysaccharide (NASP) is administered to a subject to enhance blood coagulation in the subject. Also provided are methods for preparing a NASP composition having blood coagulation enhancing activity. Compositions and kits for practicing methods of the invention are also described.Type: GrantFiled: May 19, 2011Date of Patent: May 7, 2013Assignees: Baxter International Inc., Baxter Healthcare S.A.Inventors: Michael Dockal, Hartmut Ehrlich, Friedrich Scheiflinger
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Publication number: 20130095571Abstract: The present invention discloses a method for quick and simultaneous determination of 16 inorganic anions and organic acids in tobacco by ion chromatography The retention behavior of inorganic anions and organic acids on the anion exchange column was investigated using potassium hydroxide produced by EGC-II KOH eluent autogenerator as eluent. The optimized gradient elution condition was obtained. The samples were prepared through extraction, filtration and dilution before analysis. The separation was performed on an anion exchange column. The time of the gradient elution program was 50 mins. Under the optimized conditions, the calibration of peak area for all the analytes were linear in the ranges of 105. The method in the present invention has the advantadges of simplicity, rapidity and accuracy, and is able to simultaneously determine 16 inorganic anions and organic acids in tobacco by one single time of injection.Type: ApplicationFiled: December 7, 2011Publication date: April 18, 2013Applicant: CHINA TOBACCO GUANGDONG INDUSTRIAL CO., LTD.Inventors: Jing Hu, Ruifeng Zhao, Wenzhuang Shi, Feng Li, Rong Zhou, Bing Han
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Patent number: 8420402Abstract: The present invention is generally directed to thiol quantitation assays, methods of performing the assays, and compounds used in the assays. It is more specifically directed to assays that include one or more disulfides and related molecules and methods. The disulfides contain a FRET pair.Type: GrantFiled: January 27, 2012Date of Patent: April 16, 2013Assignee: AnaSpec IncorporatedInventors: Jianjun He, Anita Hong, Qingheng Wang, Raman Khosrow Afshar, Ming Zhu, Vera Rakhmanova
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Patent number: 8420399Abstract: A method for analyzing hemoglobin in a sample by separation analysis while suppressing the denaturation of the hemoglobin includes separating hemoglobin in the presence of at least one of a sulfurous acid compound and a dithionous acid compound.Type: GrantFiled: August 16, 2011Date of Patent: April 16, 2013Assignee: ARKRAY, Inc.Inventor: Yusuke Nakayama
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Patent number: 8415166Abstract: The present invention provides a device for the detection of a peroxide-based explosive, in particular, triacetone triperoxide (TATP), which is based on a molecular controlled semiconductor resistor (MOCSER) and composed of at least one insulating or semi-insulating layer, at least one conducting semiconductor layer, two conducting pads and a layer of multifunctional organic molecules capable of adsorbing molecules of the peroxide-based explosive. The invention further provides an array of semiconductor devices for the selective detection of a peroxide-based explosive, as well as a method for the selective detection of vapors of a peroxide-based explosive in a gaseous mixture using this array.Type: GrantFiled: May 12, 2009Date of Patent: April 9, 2013Assignee: Yeda Research and Development Co. Ltd.Inventors: Ron Naaman, Eyal Capua, Roberto Cao
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Patent number: 8367420Abstract: The present invention relates to a method of detecting soil nutrients or soil nutrients in soil from reflected light, and also includes systems for the measurement, calculation and transmission of data relating to or carrying out that method.Type: GrantFiled: February 8, 2010Date of Patent: February 5, 2013Assignee: Bowling Green State UniversityInventors: B. B. Maruthi Sridhar, Robert K. Vincent
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Patent number: 8361395Abstract: An ultraviolet sensor arrangement detects the amount of sulfur in a fuel of an internal combustion engine by emitting an ultraviolet light field in the presence of the fuel. A detector is disposed to detect a responsive amount of fluorescent light and provide a sensing signal indicative of the amount of sulfur in the fuel. A filter (or filters) receives the sensing signal and provides a filtered sensing signal to a sensing circuit.Type: GrantFiled: June 24, 2008Date of Patent: January 29, 2013Assignee: Caterpillar Inc.Inventors: Douglas A. Rebinsky, Dong Fei, Svetlana M. Zemskova
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Patent number: 8334141Abstract: The detecting and monitoring of solid structure or phase transformation, such as those used for testing the formation of gas hydrates and their inhibition by chemical additives may be conducted in a multi-test assembly of laboratory bench scale loops. The test loop contains a fluid that includes water and hydrate-forming guest molecules such as methane, ethane, carbon dioxide and the like at hydrate-forming conditions of low temperature and high pressure. A small bit or “pig” may be circulated through the test loop at variable speeds to circulate the fluid in the loop. The pig may be moved or impelled through the test loop remotely. The exterior of the pig and/or the interior of the loop may be smooth and/or have a friction-reducing coating thereon to facilitate movement of the pig through the loop. The formation of hydrates may be monitored with consistent and reproducible results.Type: GrantFiled: October 4, 2010Date of Patent: December 18, 2012Assignee: Baker Hughes IncorporatedInventor: Jun Tian
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Patent number: 8318504Abstract: In one aspect a method of determining the functional activity of the MRP2 and/or MRP3 efflux pathway of a human or animal subject, comprises: (i) determining the level of a bile acid derivative in the blood of said human or animal subject at a predetermined time interval after introducing an amount of the bile acid derivative into the subject; and (ii) using the determination obtained in step (i) to indicate the functional activity of the MRP2 and/or MRP3 efflux pathway of the subject.Type: GrantFiled: May 14, 2009Date of Patent: November 27, 2012Assignee: Norgine BVInventors: Hans-Jürgen Gruss, Ronald Oude Elferink, Dirk de Waart, Bruno Stieger
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Publication number: 20120276648Abstract: Methods and related apparatuses and mixtures are described for spectroscopic detection of hydrogen sulfide in a fluid, for example a formation fluid downhole. A reagent mixture is combined with the fluid. The reagent mixture includes metal ions for reacting with hydrogen sulfide forming a metal sulfide, and a solvent that stabilizes the metal sulfide nanoparticles and assist in preventing precipitation by electrostatic stabilization. The solvent includes a property having a density above 1 kg/l. Further, dissolving the metal ions into the solvent to create the reagent mixture, and mixing the reagent mixture with the hydrogen sulfide sample in a formation. So, the metal ions of the reagent mixture react with the hydrogen sulfide sample to form the metal sulfide nanoparticles, resulting in the metal sulfide nanoparticles having properties with a density from 1 kg/l to about 8 kg/l.Type: ApplicationFiled: April 29, 2011Publication date: November 1, 2012Applicant: Schlumberger Technology CorporationInventors: Ronald E.G. van Hal, Jimmy Lawrence, Jane T. Lam
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Patent number: 8288161Abstract: Articles of manufacture and methods of making and using same concern a container having an internal space and a passivated internal metal surface. The container contains a composition of an acid gas and a balance gas contained within the internal space and in contact with the passivated internal metal surface. The stability of the acid gas concentration over time is enhanced.Type: GrantFiled: October 26, 2010Date of Patent: October 16, 2012Assignee: American Air Liquide, Inc.Inventors: Robert Benesch, Malik Haouchine, Tracey Jacksier
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Publication number: 20120225488Abstract: Disclosed is a vehicle emissions monitoring system capable of providing an accurate, real-time estimate of an amount of particulate matter (PM) within a vehicle's exhaust. The system is capable of accurately differentiating the composition of that PM by identifying amounts attributable to soot, SOF, and sulfate.Type: ApplicationFiled: August 6, 2010Publication date: September 6, 2012Applicant: AVL North America Inc.Inventors: William Martin Silvis, Roland Wanker
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Patent number: 8241916Abstract: A method allowing an accurate diagnosis of a failure of an oil-filled electrical apparatus resulting from production of copper sulfide even with a small amount of an insulating oil is implemented. A diagnostic method for an oil-filled electrical apparatus for diagnosing a failure of the oil-filled electrical apparatus having a copper part disposed in an insulating oil is implemented by detecting at least one compound of bibenzyl and dibenzyl sulfide in the oil of the oil-filled electrical apparatus, to diagnose a failure of the oil-filled electrical apparatus in accordance with the detected amount of the compound. It is configured such that a failure of the oil-filled electrical apparatus resulting from production of copper sulfide can be diagnosed by detecting a specified substance, which allows an accurate diagnosis of a failure even with a small amount of the insulating oil.Type: GrantFiled: April 16, 2008Date of Patent: August 14, 2012Assignee: Mitsubishi Electric CorporationInventors: Satoru Toyama, Junji Tanimura, Hisakatsu Kawarai, Tsuyoshi Amimoto
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Publication number: 20120164738Abstract: The invention relates to methods and compositions for the rapid detection of small ligands, such as cyanide, carbon monoxide or azide, in small quantities. Specifically, metmyoglobin is used to bind small ligands which yield a product with a characteristic absorbance spectrum that is detectable and quantifiable. Also disclosed is a kit for detecting small ligands with metmyoglobin, which is portable and provides for practice of the invention without the use of harsh solvents or chemical reagents.Type: ApplicationFiled: May 5, 2008Publication date: June 28, 2012Applicant: U.S. ARMY MEDICAL RESEARCH AND MATERIEL COMMANDInventors: James B. Kelly, Fred M. Hawkridge, Steven I. Baskin, Matthew G. Clark, Scott Willens
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Patent number: 8193000Abstract: A colorimetric test for determining the presence or absence of biodiesel in a diesel fuel sample. The colorimetric test involves adding concentrated sulfuric acid to a sample of diesel fuel and observing any color change of the sample. A darkening of the diesel fuel sample indicates the presence of biodiesel. The degree to which the color changes after the addition of the sulfuric acid is proportional to the amount of biodiesel in the sample and therefore can be used to determine the amount of biodiesel in the sample. The reagent(s), sample containers and any necessary color scale can be provided in a kit for field testing.Type: GrantFiled: December 17, 2008Date of Patent: June 5, 2012Assignee: Heritage Environmental Services, LLCInventor: Linda Osborn
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Publication number: 20120135532Abstract: The present invention relates to a sensor comprising a resorufin compound having sulfite ion selectivity and a method for detecting sulfite ions using the same. More specifically, the resorufin compound may have outstandingly increased fluorescence intensity by a deprotection reaction that a levulinyl group is cleaved with a sulfite ion to be used as a selective fluorescence sensor of turn-on type, and also represent a chromogenic change to detect sulfite ions by naked eye.Type: ApplicationFiled: October 26, 2011Publication date: May 31, 2012Applicant: Chung-Ang University Industry-Academiy Cooperation FoundationInventors: Suk-Kyu CHANG, Myung Gil CHOI, Suyoung EOR, Jiyoung HWANG
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Publication number: 20120129267Abstract: A sulfur breakthrough monitoring assembly for use in a fuel utilization system for detecting sulfur-containing compounds in desulfurized fuel, said monitoring assembly comprising: a heater for heating desulfurized fuel to a predetermined temperature, the predetermined temperature being between 450° C. and 600° C., a sulfur breakthrough detector adapted to receive heated fuel from the heater and including at least a reforming catalyst bed for reforming the heated fuel and a plurality of temperature sensors including a first temperature sensor for sensing temperature of the heated fuel before the fuel is conveyed through the reforming catalyst bed and a second temperature sensor for sensing temperature in the reforming catalyst bed, and a controller for determining whether concentration of the sulfur-containing compounds in the fuel exceeds a first predetermined concentration based on temperature outputs from the first and second temperature sensors.Type: ApplicationFiled: November 22, 2010Publication date: May 24, 2012Applicant: FuelCell Energy, Inc.Inventor: Joseph M. DALY
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Publication number: 20120122136Abstract: Provided is a compound comprising the structure: (SIG)-(SI-MOD)m. In this compound, SIG is a signaling molecule, SI is a self-immolative structure bound to SIG such that SIG has a reduced signal relative to the signal of SIG without SI, MOD is a moiety bound to SI that is subject to modification by an activator, and m is an integer from 1 to about 10. With this compound, when MOD is modified by an activator, SI is destabilized and self-cleaved from SIG such that SIG generates an increased signal. Also provided is a method of determining whether a sample comprises an activator, using the above-described compound. Additionally provided is a method of determining whether a cell comprises a nitroreductase using the above-described compound where nitroreductase is the activator. Further provided is a method of determining whether a mammalian cell is hypoxic using the above-described compound where nitroreductase is the activator.Type: ApplicationFiled: November 16, 2010Publication date: May 17, 2012Applicant: ENZO LIFE SCIENCES, INC., C/O ENZO BIOCHEM, INC.Inventors: Maciej Szczepanik, Irina V. Lebedeva, Yuejun Xiang, Praveen Pande, Wayne Forrest Patton