Including Sample Preparation Or Sampling Patents (Class 73/23.41)
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Patent number: 8087287Abstract: The present disclosure provides a method for detecting degradation of an engine oil, by separation into a polar component and a non-polar component via admixture with a polar solvent having a polarity index greater than or equal to 5 and optionally a non-polar solvent having a polarity index of less than or equal to about 1. The polar component is analyzed for one or more degradation indicators selected from the group consisting of antioxidants, acid content, and combinations thereof. Such degradation indicators relate to a degree of engine oil degradation. The polar component may be analyzed by Gas Chromatography and Mass Spectrometry (GC/MS) for the one or more degradation indicators, which can provide a semi-quantitative level of such degradation indicator species. The non-polar component identifies combustion products that help to explain the level of degradation.Type: GrantFiled: November 11, 2008Date of Patent: January 3, 2012Assignee: GM Global Technology Operations LLCInventor: Jill M. Cummings
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Publication number: 20110314900Abstract: An in situ autosampling method and associated sampling device for capturing a material sample from a vessel. Methods of the present invention make use of a sampling device having an extendable sample capture element with a concave sample capture pocket located near a distal end thereof. The sample capture pocket is adapted to capture a known volume of material when the sample capture element is extended into said material. The material sample remains trapped in the sample capture pocket upon sample capture element retraction. Ports in the sample capture pocket may be placed in communication with corresponding material transfer channels extending through the sample capture element to allow for the in situ processing of a material sample, and the subsequent discharge of the sample to an analyzer or another downstream location.Type: ApplicationFiled: June 25, 2010Publication date: December 29, 2011Applicant: Mettler-Toledo AGInventors: Peter Alfred Blacklin, Wayne Fowler, JR., Joel Michael Hawkins, Howard William Ward, II
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Publication number: 20110301865Abstract: Methods and apparatus for analyzing a sample using at least one detector are disclosed.Type: ApplicationFiled: December 3, 2010Publication date: December 8, 2011Inventors: James Anderson, Raaidah Saari-Nordhaus, Washington Mendoza, Josef Bystron, Dirk Helgemo, Dennis McCreary
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Publication number: 20110283771Abstract: An apparatus (10) for preparing samples (62) for gas chromatography contains a tubular liner (16) which can be flooded with carrier gas (64) and has a lower end region which can be heated in a controlled manner; a sample reservoir (26) which can be heated in a controlled manner; an active material (20) provided in the lower end region of the liner (16); an outer tube (38) which is arranged coaxially around the liner, wherein a cavity (46) which is connected to the lower end region of the liner is formed between the liner and the outer tube; a splitter exit (48) on the outer tube (38); a carrier gas connection (52) which is provided on the outer tube (38) and is intended to supply carrier gas (82) to the cavity (46); a column connection (22) which is provided above the active material (20) and is intended to connect a gas chromatography column (12); and control means for controlling the carrier gas stream, in a first setting (FIG.Type: ApplicationFiled: August 4, 2011Publication date: November 24, 2011Applicant: Joint analytical systems GmbHInventor: Joachim Gerstel
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Patent number: 8062905Abstract: A purge and trap concentrator system that includes a sparge vessel, and includes a variable gas flow valve for controlling the gas pressure in an analytic trap or the sparge vessel; a sensor that detects both a foaming sample state and a high liquid level in the sparge vessel, using one optical sensor; a control scheme that re-directs the purge gases to a second inlet of the sparge vessel during a foaming condition; a control scheme that uses a split flow to enhance the quantity of sample gases passed from an analytic trap; an electrically powered thermal energy source with a fan raising the sparge vessel temperature via thermal convection.Type: GrantFiled: May 13, 2011Date of Patent: November 22, 2011Assignee: EST Analytical, Inc.Inventor: Douglas A. Meece
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Publication number: 20110271738Abstract: The present invention is generally directed to a method for non-contact analyte detection by selectively exciting one or more analytes of interest using an IR source optionally operated to produce pulses of light and tuned to at least one specific absorption band without significantly decomposing organic analytes and determining if the analyte is present by comparing emitted photons with an IR detector signal collected one or more times before, during, after, or any combination thereof exciting the analyte.Type: ApplicationFiled: May 13, 2011Publication date: November 10, 2011Inventors: R. Andrew McGill, Graham K. Hubler, Michael Papantonakis, James S. Horwitz, Chris Kendziora, Robert Furstenberg
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Patent number: 8046934Abstract: The present invention concerns a convective system for a dryer installation for a passing web, more particularly paper. The convective system 7 is an assembly of an exterior casing 13 for suction of combustion products with opening 14 towards the web, with a first 15 and second 16 suction ducts sucking the combustion products into the convective system 7. The combustion products coming from the first suction duct 15 are guided through the exterior casing 13 to a mixing and blowing device 17. Cold air 18 is mixed in this mixing and blowing device 17 with the combustion products 19, resulting in a gas mixture with lower temperature 20. The convective system 7 also has an internal casing 21 inside the external casing 13. This internal casing 21 has at least one opening towards the web 22 and has also openings 34 allowing gas flow from the mixing device 17 to the internal casing 21 of said gas mixture 20. Under the internal casing 21, there is also a blowing duct 23.Type: GrantFiled: January 24, 2007Date of Patent: November 1, 2011Assignees: NV Bekaert SA, Bekaert Combustion Technology B.V.Inventor: Patrick Lenoir
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Patent number: 8042379Abstract: A combination of a liquid chromatograph and a gas chromatograph was a possible measure for improving precision in analyzing organic chemical substances. However, because elutes from liquid chromatoghaphies contain water and a highly polar solvent, injection thereof into a gas chromatograph has been impossible. Consequently, to develop an analytical method which realizes that combination and an apparatus thereof has been a subject. The method of the quantitative analysis comprises subjecting a sample for analysis prepared beforehand by extracting organic chemical substances from an assay sample to fractionation by a liquid chromatograph, continuously adsorbing a fractionated elute containing a substance to be determined onto a solid-phase cartridge while conducting the fractionation, eluting this substance, which has been adsorbed on the solid-phase cartridge, with an eluent, and transferring the elute to a storage chamber of a gas chromatograph.Type: GrantFiled: December 3, 2004Date of Patent: October 25, 2011Assignee: AISTI Science Co., Ltd.Inventors: Ryoichi Sasano, Yutaka Nakanishi
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Publication number: 20110247394Abstract: An approach for analyzing fluid samples. The approach provides for segregating a sample into groups of analytes in a sample before being passed on to an analyzer such as a detector or separator. The sample may be run through a number of collectors connected in series each of which may adsorb analytes having a certain property which is different from a property of any of the other collectors in the series. After the adsorption of analytes, the collectors may be reconnected by a valve or fluid control mechanism from their series connection to a parallel connection to their respective analyzers. The analytes may be desorbed into a pulse in each of the collectors, which goes to the respective analyzer.Type: ApplicationFiled: April 9, 2010Publication date: October 13, 2011Applicant: HONEYWELL INTERNATIONAL INC.Inventor: Adam Dewey McBrady
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Publication number: 20110239737Abstract: Provided herein are apparatuses and methods regarding photometric analyte detection using multiple flames, including a multiple flame photometric detector (mFPD). Such a detector may be used, for example, to detect sulfur and phosphorous in effluent streams containing hydrocarbons.Type: ApplicationFiled: March 4, 2011Publication date: October 6, 2011Inventor: Kevin Thurbide
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Publication number: 20110245493Abstract: The present invention relates to the delivery of drug amines through an inhalation route. Specifically, it relates to aerosols containing drug amines that are used in inhalation therapy. In one aspect of the present invention, a method of delivering an amine drug in an aerosol form is provided. The method comprises: a) heating a coating, which includes an amine drug salt on a substrate contained in a device to a temperature sufficient to volatilize the amine drug from the coating, h) by said heating, forming an amine drug vapor, and c) during said heating, drawing air through said device, condensing said vapor to form aerosol particles containing less than 10% degradation products of the compound.Type: ApplicationFiled: April 1, 2011Publication date: October 6, 2011Applicant: ALEXZA PHARMACEUTICALS, INC.Inventors: Joshua D. RABINOWITZ, Alejandro C. Zaffaroni
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Patent number: 8011224Abstract: A feeding device for enriching and feeding a fluid sample into a chemical detector, the feeding device comprises (a) a sorbent element having a sorbent material for sorbing at least one target chemical present in the fluid sample; (b) a desorbing mechanism for generating conditions for the sorbent material to desorb the at least one target chemical out of the sorbent material, thereby to provide an enriched fluid sample; and (c) a loose connector, for providing a loose connection between the feeding device and the chemical detector, such that when the sorbent material desorbs the at least one target chemical, the chemical detector is fed by the enriched fluid sample, and when the sorbent material sorbs the at least one target chemical, the chemical detector is fed by environmental fluids.Type: GrantFiled: June 1, 2005Date of Patent: September 6, 2011Assignee: Israel Institute for Biological ResearchInventors: Shai Kendler, Adi Zifman, Netzah Gratziany, Amnon Sharon, Gad Frishman
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Patent number: 8006540Abstract: An automatic solid-phase microextraction (SPME) sampling apparatus having a mobile sampler arm with a holder for a probe carrying a fiber 9 and an intermediate bracket for transferring the probe between a probe storage tray and the gas chromatograph injector. In the various probe handling stages, the probes are collected by a magnetic member attached to the end of the plunger in the holder, at the free end of the holder's body and at the lower end of the block for guiding the probe needle. The magnetic member interacts with a ferromagnetic connector attached to one end of the fiber and with a ferromagnetic flange attached to the end of the needle containing the fiber in order to place the probe on the transfer bracket or remove it therefrom. The apparatus can perform analyses on fibers that have already been exposed, extract analytes from samples, and subsequently transfer them for desorption in the gas chromatograph in a fully automatic way.Type: GrantFiled: September 6, 2006Date of Patent: August 30, 2011Inventors: Filippo Degli Esposti, Vittorio Dugheri
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Publication number: 20110203931Abstract: Devices, apparatus and methods are disclosed for non-contact pneumatic sampling and sampling of surfaces, persons, articles of clothing, buildings, furnishings, vehicles, baggage, packages, mail, and the like, for contaminating aerosols or vapors indicative of a hazard or a benefit, where the contaminating aerosols or vapors are chemical, radiological, biological, toxic, or infectious in character. In a first device, a central orifice for pulling a suction gas stream is surrounded by a peripheral array of convergingly-directed gas jets, forming a virtual sampling chamber. The gas jets are configured to deliver millisecond pneumatic pulses that erode particles and vapors from solid surfaces at a distance.Type: ApplicationFiled: April 3, 2011Publication date: August 25, 2011Applicant: ENERTECHNIX, INCInventors: Igor V. Novosselov, Peter C. Ariessohn, Evan D. Dengler, Michelle Hickner
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Patent number: 7997300Abstract: A flow modulator to control the flow of an aerosol to an aerosol detection and/or monitoring system and other aerosol flow systems includes a chamber having an inlet and an outlet, a diverging section of the chamber beneath the inlet that has a flow divider at the center to divide the aerosol into fractions, a recirculation section in which the divided aerosol fractions are recombined, and a converging section that channels the recombined aerosol fractions to the outlet of the chamber.Type: GrantFiled: April 11, 2006Date of Patent: August 16, 2011Assignee: The United States of America as represented by the Secretary of the ArmyInventors: Daniel G. Wise, Lawrence J. Hyttinen
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Patent number: 7992424Abstract: Sample introduction components of analytical instruments are provided that can include a membrane inlet component in fluid communication with both a mass analyzer component and a sample inlet. The components can also include a valve in fluid communication with the sample inlet and a sampling component. Components can include a sample loop assembly in fluid communication with valve, and a preconcentration assembly in fluid communication with the valve. Sample analysis methods are provided that can include providing sample to a membrane in fluid communication with a mass analyzer to acquire sample parameter data, and providing the sample to a sampling assembly upon acquisition of predefined sample parameter data. Methods can also include providing sample to a first sampling assembly in fluid communication with a detection component to acquire sample parameter data, providing the sample to a second sampling assembly upon acquisition of predefined sample parameter data.Type: GrantFiled: September 14, 2007Date of Patent: August 9, 2011Assignee: Griffin Analytical Technologies, L.L.C.Inventor: John Grossenbacher
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Publication number: 20110186436Abstract: Devices, apparatus and methods are disclosed for non-contact pneumatic sampling and sampling of surfaces, persons, articles of clothing, buildings, furnishings, vehicles, baggage, packages, mail, and the like, for contaminating aerosols indicative of a hazard or a benefit, where the contaminating aerosols are chemical, radiological, biological, toxic, or infectious in character. In a first device, a central orifice for pulling a suction gas stream is surrounded by a peripheral array of convergingly-directed gas jets, forming a virtual sampling chamber. The gas jets are configured to deliver millisecond pneumatic pulses that erode particles from solid surfaces at a distance.Type: ApplicationFiled: April 3, 2011Publication date: August 4, 2011Applicant: ENERTECHNIX, INCInventors: Igor V. Novosselov, Peter C. Ariessohn, Evan D. Dengler, Michelle Hickner
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Patent number: 7984638Abstract: A gas chromatograph oven including a housing, a capillary tube and a thermal control assembly. The housing defining a capillary tube receiving space and having at least one outlet port to permit the passage of a fluid from the capillary tube receiving space of the housing. The capillary tube is positioned in the capillary tube receiving space of the housing and has a gas inlet end connectable to a gas injector and a gas detector end connectable to a gas detector. The thermal control assembly is in fluid communication with the capillary tube receiving space of the housing and is connectable to a source of a temperature regulating fluid.Type: GrantFiled: July 3, 2008Date of Patent: July 26, 2011Assignee: The Board of Regents of the University of OklahomaInventor: Robert L. White
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Patent number: 7985597Abstract: The invention relates to a process and to an apparatus for providing a gaseous substance for the analysis of chemical elements or compounds. In one embodiment, a starting substance is continuously admixed with a reagent substance. This results in a gaseous reaction product which contains information about the elements of the starting substance, and a residual substance. The gaseous reaction product is separated from the residual substance and removed for analysis. One application is the isotopic analysis of oxygen or hydrogen from water.Type: GrantFiled: April 16, 2003Date of Patent: July 26, 2011Assignee: Universitat BernInventors: Christof Huber, Markus Leuenberger
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Publication number: 20110163226Abstract: The present invention pertains to the field of toxicological assessments for risk stratification of chemical compounds. Specifically, it relates to a method for diagnosing liver toxicity. It also relates to a method of determining whether a compound is capable of inducing such liver toxicity in a subject and to a method of identifying a drug for treating liver toxicity. Furthermore, the present invention relates to a data collection comprising characteristic values of at least five metabolites, a data storage medium comprising said data collection, and a system and a device for diagnosing liver toxicity. Finally, the present invention pertains to the use of a group of metabolites or means for the determination thereof for the manufacture of a diagnostic device or composition for diagnosing liver toxicity in a subject. For each sex, a different metabolome pattern, i.e. a different set of analytes is disclosed.Type: ApplicationFiled: May 26, 2009Publication date: July 7, 2011Applicant: BASF SEInventors: Bennard van Ravenzwaay, Werner Mellert, Georgia Coelho Palermo Cunha, Eric Fabian, Volker Strauss, Hennicke Kamp, Tilmann B. Walk, Ralf Looser, Michael Manfred Herold, Jan C. Wiemer, Alexandre Prokoudine, Edgar Leibold
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Publication number: 20110146380Abstract: The present invention includes a heat sealable capsule adapted for use in analysis devices such as GCs, and methods for using the capsules to perform analysis in such devices. The capsules include a tube having an end that is heat-sealed to contain a sample that is to be analyzed at an injection temperature. The tube includes a heat sealable medium having a heat seal that closes the end, the tube having an inner and outer surface, both of the surfaces being substantially chemically inert with respect to the sample. The tube is substantially free of any material that outgases at the injection temperature. The tube is openable without breaking into pieces, and remains intact at the injection temperature. The capsule can include a programmable tag that stores information related to the sample contained therein.Type: ApplicationFiled: December 20, 2009Publication date: June 23, 2011Inventors: Arthur Schleifer, Carl A. Myerholtz
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Publication number: 20110146381Abstract: Analytical instruments are provided that can include a sample inlet component with the sample inlet component including a first sampling port; a plurality of sample capturing assemblies; and a first valve assembly in fluid communication with both the sampling port and the sample capturing assemblies. The instrument can further include a sample analysis component in fluid communication with the first valve assembly of the sample inlet component; and an instrument control component in controlling communication with both the sample inlet component and the analysis component. Instrumental analysis methods are provided that can include continuously providing sample to at least one of a plurality of sample capturing assemblies; and selectively analyzing the contents of at least one of the plurality of sample capturing assemblies.Type: ApplicationFiled: November 23, 2010Publication date: June 23, 2011Inventors: James Mitchell Wells, Mark Gregory, Matt Briscoe
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Patent number: 7959865Abstract: The invention relates to a miniaturized gas chromatograph and injector for the same. Said micro-GC is compact and simple and economical to construct. Dead volumes are largely avoided in order to achieve reliable and reproducible measured results. Said miniaturized gas chromatograph comprises at least one injector, one separation column and a detector which are combined on a circuit board to give a gas chromatography module. The injector comprises a first sheet with channels, which is provided with a second sheet with channels and which may be displaced relative to the latter, whereby at least one of the sheets is provided with a layer of plastic, in particular a chemically inert plastic on the side of the sheet facing the other side.Type: GrantFiled: January 14, 2004Date of Patent: June 14, 2011Assignee: SLS Micro Technology GmbHInventors: Tobias Schmidt, Mathias Mahnke, Uwe Lehmann
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Patent number: 7958770Abstract: A heat transfer line assembly is disclosed for microwave heated chromatography instruments. Analytical instruments incorporating a microwave oven including the heated transfer lines are also disclosed as well as methods for making and using same.Type: GrantFiled: August 6, 2007Date of Patent: June 14, 2011Assignee: Petroleum Analyzer Company, LPInventors: Kevin Kyle, Larry Youngblood
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Patent number: 7951609Abstract: A purge and trap concentrator system that includes a sparge vessel, and includes a variable gas flow valve for controlling the gas pressure in an analytic trap or the sparge vessel; a sensor that detects both a foaming sample state and a high liquid level in the sparge vessel, using one optical sensor; a control scheme that re-directs the purge gases to a second inlet of the sparge vessel during a foaming condition; a control scheme that uses a split flow to enhance the quantity of sample gases passed from an analytic trap; an electrically powered thermal energy source with a fan raising the sparge vessel temperature via thermal convection.Type: GrantFiled: August 23, 2010Date of Patent: May 31, 2011Assignee: EST Analytical, Inc.Inventor: Douglas A. Meece
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Publication number: 20110108522Abstract: A fluidic device for separating different components of a sample, the fluidic device comprising a microstructured body and porous material covering at least a portion of a surface of the microstructured body.Type: ApplicationFiled: April 23, 2008Publication date: May 12, 2011Applicant: AGILENT TECHNOLOGIES, INC.Inventor: Gerard Rozing
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Publication number: 20110100092Abstract: The invention relates to a device and to a method for determining the proportion of fuel in a combustion engine lubricating oil. The device according to the invention comprises a column (12) with at least 22000 theoretical plates and a steady state phase capable of separating the fuel, the oil, the internal standard contained in the oil and the solvent, in which the oil and the internal standard are diluted, and a heating module (120) capable of causing an increase in the temperature of the column (12) at a rate of at least 350° C./min. In the method according to the invention, the column (12) is subjected to determined cycles during which the pressure of the carrier gas and the temperature are varied.Type: ApplicationFiled: July 7, 2008Publication date: May 5, 2011Applicant: RENAULT S.A.S.Inventors: Laurent Tiquet, Pierrick Rouille
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Publication number: 20110094290Abstract: A low power preconcentrator for use in micro gas analysis, such as gas chromatography, and a system that employs the preconcentrator is disclosed. The preconcentrator includes a reservoir that comprises a heater membrane and elements coated at least partially with an adsorbent, and ports for receiving and discharging an analyte in communication with the reservoir. At least a portion of the reservoir (e.g., a cap) is made of a material having a thermal conductivity less than about 100 W/(m·K) and/or the heater membrane is made of a material that has a temperature difference less than about 75° C. when heated. The present invention has been described in terms of specific embodiment(s), and it is recognized that equivalents, alternatives, and modifications, aside from those expressly stated, are possible and within the scope of the appending claims.Type: ApplicationFiled: October 26, 2009Publication date: April 28, 2011Applicant: General Electric CompanyInventors: Aaron Jay Knobloch, Glenn Scott Claydon, Wei-Cheng Tian, Zhiqiang Cao, Stacey Joy Kennerly, Nannan Chen
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Publication number: 20110086430Abstract: A process and an apparatus for isotope ratio analysis, the process having the following steps: performing a liquid chromatography process and thus providing an eluate which comprises at least one liquid carrier fluid and at least one analytes, collecting a portion of interest from the eluate, processing the eluate portion to form at least one gaseous conversion products of the analytes, and supplying the gaseous conversion products, especially with gaseous carrier fluid, to an isotope analyzer and determining the isotrope ratios.Type: ApplicationFiled: November 10, 2008Publication date: April 14, 2011Applicant: THERMO FISHER SCIENTIFIC (BREMEN) GMBHInventors: Michael Krummen, Johannes Schwieters, Jens Griep - Raming
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Publication number: 20110067482Abstract: Use of calibrant in extraction phase is described for quantification of components of interest in samples in laboratory application as well as in on-site monitoring.Type: ApplicationFiled: November 4, 2010Publication date: March 24, 2011Inventor: Janusz PAWLISZYN
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Patent number: 7906073Abstract: Analyzers are described that contain a detector for detecting a signal from an analyte; a heater for heating a fluid; a fluid supplier for supplying the fluid heated by the heater to the detector; and a controller for controlling the detector, the heater, and the fluid supplier. Methods for analyzing analytes are also described.Type: GrantFiled: June 30, 2003Date of Patent: March 15, 2011Assignee: Sysmex CorporationInventor: Masaharu Shibata
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Publication number: 20110058987Abstract: An apparatus and a system for extracting gaseous specimens to be measured, preferably during the production of polycrystalline silicon, are disclosed. The apparatus according to the invention is a flange-like device (80), which is placed between each of the at least two pipe sections (11a, 11b, 21a, 21b, 41a, 41b) of the outlet pipes (11, 21, 41).Type: ApplicationFiled: October 19, 2009Publication date: March 10, 2011Applicant: G+R POLYSILICON GMBHInventor: Robert Stöcklinger
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Publication number: 20110011158Abstract: Chemical sampling systems and methods that can inexpensively and efficiently provide accurate chemical sampling in dusty environments are disclosed. The system can include a chemical detector, an elastomeric membrane, and a support structure for the elastomeric membrane. The gas chromatograph can have a sample inlet through which chemicals from the gaseous environment can enter the gas chromatograph. The sample inlet can be covered with the elastomeric membrane, the elastomeric membrane being configured to extract chemicals from the gaseous environment while excluding dust and other particles from passing into the gas chromatograph. The support structure can be disposed between the elastomeric membrane and the sample inlet and can provide mechanical support to the elastomeric membrane.Type: ApplicationFiled: July 16, 2009Publication date: January 20, 2011Applicant: Seer Technology, Inc.Inventors: Gary R. Bodily, Neil Arnold, Jed W. Bodily, Daniel C. Maxwell
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Publication number: 20110011157Abstract: A carbon nanostructured micro-fabricated gas chromatography column which is particularly well-suited to the surface well-site and/or the downhole analysis of natural gas in oilfield or gasfield applications (but which may also be used in non-oilfield or non-gasfield situations) is described. This micro-fabricated column integrates a micro-structured substrate such as a silicon substrate with carbon nanotubes as an active nanostructured material in a micro-channel. Benefits of the present invention include enhanced separation of alkanes and isomers, particularly below hexane (i.e., below C6), as well as the separation of carbon dioxide, hydrogen sulfide, and water and other substances present in natural gas. The chromatography column of the present invention is in one embodiment a part of an entire gas chromatograph system that in its simplest form also comprises an injector and a detector. Preferably the injector, separation column, and detector are all micro-fabricated on a substrate.Type: ApplicationFiled: July 16, 2009Publication date: January 20, 2011Inventors: Bertrand Bourlon, Joyce Wong, Paul B. Guieze
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Patent number: 7867451Abstract: A sample suction apparatus includes: first through third members; a drive source; and a suction needle provided on the third member. The drive source reduces a distance between the first member and the third member to perform: a first action of shifting the first member toward the third member to contact the first member with a portion of a specimen vessel; a second action of shifting the second member together with the third member toward the first member to contact the second member with another portion of the specimen vessel so that the specimen vessel is sandwiched between the first and second members; and a third action of shifting the third member toward the first member to bring the third member close to the second member so that the suction needle is inserted in the specimen vessel.Type: GrantFiled: April 23, 2008Date of Patent: January 11, 2011Assignee: Sysmex CorporationInventor: Masayasu Sentoh
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Patent number: 7854158Abstract: A system for measurement and analysis of pipeline contaminants is provided. The system includes a first assembly for engaging a pipeline from which a first fluid flow sample may be isokinetically collected for measurement of aerosol contaminants. The system also includes a second assembly for engaging the pipeline from which a second fluid flow sample may be collected for chromatographic analysis of the aerosol contaminants. The system may further include a third assembly for engaging the pipeline from which a fluid flow sample may be obtained for measurement of solid contaminants. Information on aerosol contaminants and solid contaminants can subsequently be used to select an appropriate extraction technology to control the presence of aerosol and solid contaminants within the pipeline.Type: GrantFiled: December 28, 2006Date of Patent: December 21, 2010Assignee: Perry Equipment CorporationInventors: David Burns, Tomas Borjon, Mark Scott
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Publication number: 20100307224Abstract: Apparatus, systems and methods are described for preconcentrators, chemical sensing systems and gas chromatographs. A preconcentrator is described that comprises a hollow enclosure containing a sorbent material. The enclosure may be a capillary tube that can be formed in to a desired shape and that may be heated. Heating may be accomplished by passing an electrical current through the capillary or other hollow enclosure form. The sorbent material can be a liquid, a solid, a porous ceramic material and/or a chemiselective polymer. The sorbent material can be coated to the inner wall of the enclosure. The hollow enclosure may be maintained in an insulated chamber. The preconcentrator acts to concentrate a vapor passed through the preconcentrator to a chemical sensing array that can detect chemicals present in the vapor. A gas passed through the hollow enclosure can provide a chemically concentrated input to a chromatographic column.Type: ApplicationFiled: April 30, 2010Publication date: December 9, 2010Applicant: SEACOAST SCIENCE, INC.Inventors: Jonathan Day Lucas, Manna Leon Warburton, Todd Mlsna, Sanjay V. Patel, Stephen Terrence Hobson
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Patent number: 7836750Abstract: An example of a gas detection system includes a gas chromatograph oven, a gas detector, a sample gas moving device, and a flow detector. An example of a method for detecting gas includes flowing a sample gas from the oven, determining whether the flow rate equals or is less than a minimum, and determining whether the concentration of a first gas of the sample gas, such as a combustible gas, equals or exceeds a maximum. If either the flow rate or the concentration indicates an error condition or is out of bounds, an alarm response is initiated. The alarm response may include shutting off the flow of the first gas to the oven, and flowing a second gas, such as a safe gas, to the oven.Type: GrantFiled: November 20, 2007Date of Patent: November 23, 2010Assignee: Bruker Chemical Analysis, BVInventors: Nils van den Heuvel, Hans van Schaik
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Patent number: 7832253Abstract: A portable weather resistant gas chromatograph system with a gas chromatograph enclosure having a body and a movable door and a seal, a gas chromatograph with a frame assembly removably secured in the enclosure, a plurality of exhaust gas lines connected to the gas chromatograph, an explosion proof terminal box with circuit breakers and terminals mounted to the enclosure, a communication conduit and armored power cable between the explosion proof terminal box and the gas chromatograph, a purge gas conduit port for the gas chromatograph, a pedestal for the enclosure, and at least two lifting eyes connected to the enclosure.Type: GrantFiled: March 3, 2009Date of Patent: November 16, 2010Assignee: Solarcraft, Inc.Inventors: Darrell N. Haun, Donald N. Haun
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Patent number: 7827850Abstract: This invention provides a chromatographic apparatus comprising an introduction part for a carrier gas as a main mobile phase medium, a sample injection part, a separation column comprising a stationary phase formed by coating a polymeric material, a part for housing the separation column, and a detector. The sample injection part is provided between the carrier gas introduction part and the inlet of the separation column. The chromatographic apparatus further comprises a solvent introduction means for adding a liquid solvent as a second mobile phase medium to a carrier gas and mixing them together, a mechanism for regulating the amount of the carrier gas introduced and the amount of the solvent added, and a mechanism for regulating the temperature of each flow passage. A plurality of clogging liquid stoppers, of which the liquid film thickness is equal to the inner diameter of a capillary column, are partly provided at predetermined intervals within the column in a longitudinal direction of the column.Type: GrantFiled: March 31, 2006Date of Patent: November 9, 2010Assignee: Tokyo Seikan Kaisha, Ltd.Inventor: Isao Tanikawa
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Patent number: 7824478Abstract: Disclosed are systems and methods that include providing a vessel having an inlet and an outlet for communicating a carrier gas through the vessel; determining a differential pressure between the inlet and the outlet for a known flow rate at the outlet; and, determining a unit flow per unit pressure based on a ratio of the flow rate and the differential pressure. In certain embodiments, the flow rate at the outlet is established by controlling the flow rate of the gas. In some embodiments, the methods and systems can include a viscosity in the ratio, determining a flow rate at ambient pressure using a factor based on a ratio of a gas pressure at the output and ambient pressure, and/or, determining a flow rate at ambient temperature using a factor based on a ratio of a temperature at the output and ambient temperature.Type: GrantFiled: September 8, 2008Date of Patent: November 2, 2010Assignee: PerkinElmer Health Sciences, Inc.Inventors: Andrew Tipler, Neil T. Plant
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Patent number: 7823439Abstract: The present invention is directed to a method for multidimensional gas chromatography for separating the analytes of a complex sample. The method comprises the steps of introducing the sample onto a first column whereby the sample is separated into at least two segments, introducing at least one segment into a heartcut device whereby the segments are selectively separated into at least two heartcut fractions, introducing at least one of the fractions onto a second column whereby at least one fraction is further separated into at least two analytes, introducing at least one analyte from the second column to a gas chromatography connector, introducing the analyte from the connector to a third column, and introducing the analyte from the third column into a detector whereby the analyte is analyzed and identified.Type: GrantFiled: November 15, 2007Date of Patent: November 2, 2010Assignee: Midwest Research InstituteInventor: Chad Fisher
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Patent number: 7818994Abstract: The present invention relates to a method for injecting a sample (i.e. a material to be analyzed that may be dissolved in a solvent) in a vaporization chamber or in a pre-column or a gas chromatograper, this method implying separately injecting a co-solvent, with the co-solvent being injected in advance of the sample and/or in a point in the vaporization chamber other than the sample injection point.Type: GrantFiled: May 11, 2005Date of Patent: October 26, 2010Assignee: Thermo Electron S.p.A.Inventors: Fausto Munari, Paolo Magni, Koni Grob
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Patent number: 7803635Abstract: A purge and trap concentrator system that includes a sparge vessel, and includes a variable gas flow valve for controlling the gas pressure in an analytic trap or the sparge vessel; a sensor that detects both a foaming sample state and a high liquid level in the sparge vessel, using one optical sensor; a control scheme that re-directs the purge gases to a second inlet of the sparge vessel during a foaming condition; a control scheme that uses a split flow to enhance the quantity of sample gases passed from an analytic trap; an electrically powered thermal energy source with a fan raising the sparge vessel temperature via thermal convection.Type: GrantFiled: February 27, 2008Date of Patent: September 28, 2010Assignee: EST Analytical, IncInventor: Douglas A. Meece
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Publication number: 20100218594Abstract: An apparatus or method for removing water and concentrating an analyte in solution, wherein the concentrated analyte sample is delivered directly to a vial, such as an autosampler vial that is capable of use in a gas chromatography autosampler.Type: ApplicationFiled: October 29, 2008Publication date: September 2, 2010Applicant: Horizon Technology, Inc.Inventors: Robert S. Johnson, Stephen Scheufele
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Publication number: 20100212399Abstract: An improved gas analyzer for analyzing the concentrations and amounts of one or more different gases in drilling mud returning from a borehole is disclosed. An oil well drilling rig re-circulates the drilling mud by continuously pumping it through a gas separation means. The gas separation means generally includes a fluid stop, a bubble jar and a dririte chamber in order to separate the gases from the drilling mud. A gas sample from these separated gases can be mixed with a carrier gas and are conveyed to gas analyzing means where the concentration of the different hydrocarbon components of the gases in the mud can be continuously measured.Type: ApplicationFiled: October 13, 2008Publication date: August 26, 2010Inventor: Dean John Richards
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Publication number: 20100206044Abstract: A fluidic device comprising a capillary for conducting a fluid and a pivot arm configured for being pivoted, wherein the pivot arm supports at least a portion of the capillary, and a part of the capillary is coiled to at least partially compensate stress resulting from pivoting of the pivot arm.Type: ApplicationFiled: February 19, 2009Publication date: August 19, 2010Applicant: AGILENT TECHNOLOGIES, INC.Inventors: Sven Langer, Manfred Berndt
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Publication number: 20100206043Abstract: A smoke evaluation device includes a manifold in fluid communication with a source of smoke, and a first sampling line and a second sampling line in fluid communication with the manifold. The first sampling line and the second sampling line are arranged to convey parallel smoke flows. A first filter station is located in the first sampling line, and is adapted to support a filter paper in fluid communication with the smoke. A first circuit board station is located in the second sampling line, and is adapted to support a circuit board in fluid communication with the smoke.Type: ApplicationFiled: February 18, 2009Publication date: August 19, 2010Applicant: FACTORY MUTUAL INSURANCE COMPANYInventor: Archibald Tewarson
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Publication number: 20100192674Abstract: A method for directly injecting a liquid sample into a capillary chromatography column, by which a liquid sample that includes the substance to be analyzed and the relative solvent is withdrawn from a vial with an automatic sampler having a syringe with a needle, and is then introduced into an insert, with which the injector of the chromatograph is provided, such that the terminal portion of the chromatography column is coaxially inserted into the needle to cause migration by capillarity of a part of the sample from the needle to the column. Excess sample overflowing from the needle at the moment in which the end of said column is inserted thereinto is received in a cavity, and the residence time of the end of the column within the needle is controlled.Type: ApplicationFiled: September 3, 2008Publication date: August 5, 2010Applicant: DANI INSTRUMENTS S.P.A.Inventors: Mario Galli, Stefano Galli, Albino Sironi
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Publication number: 20100175457Abstract: An analysis system and method including a combined purge and trap (P&T) concentrator and P&T autosampler (generally, together, “the P&T system”) in conjunction with a gas chromatograph may be under control of a microprocessor that may control the various valve operations, syringe operations, cleaning operations, sample acquisition, and the like. The system includes automatic controls to clean the various components of the system such as valves and pathways, etc., using methanol, perhaps combined other cleaning techniques, between samples so that any residual contaminates remaining in a part of the system from one sample are minimized from affecting the results of an analysis of a subsequent sample. The automated methanol rinse greatly improves accuracy of sample analysis from one sample to the next.Type: ApplicationFiled: January 14, 2009Publication date: July 15, 2010Inventors: Edward K. PRICE, Eric T. Heggs