| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073230370 | With spectrometer | 53 |
| 20090038374 | METHOD FOR DETECTING CHEMICAL SUBSTANCES IN WHOLE, CLOSED AND/OR SEALED CONTAINERS - A non-invasive and non-destructive apparatus and testing method for analytes in sealed containers are provided, which are especially useful for identifying bottles of wine that are contaminated with 2,4,6-trichloroanisole (TCA) without destroying the value of uncontaminated wine by opening the bottles or marring the containers or labeling. The apparatus and method are applicable to non-destructively testing any “stream-of-commerce” containers such as shampoo bottles, aerosol containers, toothpaste tubes, and soft drink cans, and other such containers for the presence of contaminants, explosives, poisons, drugs, and other dangerous or illegal materials. The method provided is orders of magnitude more sensitive than other methods, and can detect the presence of diffused substances at the nanogram per liter (parts-per-billion) level. | 02-12-2009 |
| 20090107213 | Method for preparing sample for analysis of dioxins - An aliphatic hydrocarbon solvent solution obtained by extracting dioxins contained in a specimen such as soil with an aliphatic hydrocarbon solvent is supplied to an alumina layer | 04-30-2009 |
| 20090199620 | CHROMATOGRAPH MASS ANALYSIS DATA PROCESSING APPARATUS - In the case where a given mass range is repeatedly scanned to sequentially create mass spectra and create a mass chromatogram or the like, when a number of data, which are arranged on the mass axis and constitute a mass profile of the given mass range, are collected for a predetermined number of the alignment (S | 08-13-2009 |
| 20090211336 | HEATER DEVICE - Isopotential heaters used in the preconcentration stage of sample detection systems are described. The heaters have at least two electrically conducting paths of which the resistances of the electrically conducting baths are substantially equal such that in use uniform heat distribution is achieved. | 08-27-2009 |
| 20100031732 | DEVICE FOR QUANTIFYING THE RELATIVE CONTENTS OF TWO ISOTOPES OF AT LEAST ONE SPECIFIC GASEOUS CONSTITUENT CONTAINED IN A GASEOUS SAMPLE FROM A FLUID, RELATED ASSEMBLY AND PROCESS - This device comprises a means ( | 02-11-2010 |
| 20100101304 | GAS CHROMATOGRAPH-COMBUSTION SYSTEM AND METHOD FOR MASS SPECTROMETRY - A gas chromatograph-combustion apparatus and method are disclosed in which the carrier gas type and flow rate is continuously exchanged to facilitate high speed, high sensitivity compound specific isotope analysis. Samples are injected into a gas chromatograph that uses H | 04-29-2010 |
| 20100107729 | Energy Flow Measurement In Gas Pipelines - Thermodynamic properties of a natural gas stream can be determined in real time utilizing modeling algorithms in conjunction with one or more sensors for quantifying physical and chemical properties of the natural gas. Related techniques, apparatus, systems, and articles are also described. | 05-06-2010 |
| 20100116021 | METHOD AND APPARATUS FOR SAMPLE ANALYSIS - Methods and systems for analyzing samples, such as gas samples, are described. One method comprises providing a gas sample, increasing pressure applied to the gas sample to compress the sample to a smaller volume and provide a pneumatically focused gas sample, and analyzing the pneumatically focused gas sample using any of a variety of analytical techniques. Also disclosed are systems for gas analysis, including systems for analysis of pneumatically focused, and thereby concentrated, gas samples and for analysis of particulate matter in gas samples. Analytical systems constructed within personal computer cases also are disclosed. | 05-13-2010 |
| 20100192672 | Indirect Determination of the Waste Gas Rate for Metallurgical Process - A method for the indirect determination of the waste gas rate in metallurgical processes. A reference gas such as helium is first added to the waste gas, specifically at a time which, with respect to flow, sufficiently precedes the taking of a sample such that a thorough mixing of the reference gas and waste gas is carried out, i.e., a virtually homogeneous distribution is achieved, and a quantitative helium analysis and nitrogen analysis of the waste gas, measured by a mass spectrometer, is carried out while taking into account the added amount of helium. | 08-05-2010 |
| 20100192673 | DIAGNOSTIC METHOD FOR OIL-FILLED ELECTRICAL APPARATUS - 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. | 08-05-2010 |
| 20100212398 | Device for Providing Gases, in Particular for Isotopic Ratio Analysis - A device is provided for delivering gases to an analyzer, such as an isotopic ratio mass spectrometer. The device includes first and second reactors, preferably arranged in parallel. At least one of the reactors may be selectively activated, or means may be incorporated to circumvent one of the reactors, such that different types of gas conversions may be achieved. | 08-26-2010 |
| 20100223978 | System and Method for a Gas Chromatograph to Mass Spectrometer Interface - A system for interfacing a gas chromatograph (GC) to a mass spectrometer the GC comprising a GC column partially contained within a GC oven, the mass spectrometer comprising a housing enclosing an interior having an ion source, the system comprising: a conduit extending from the GC oven to the mass spectrometer and comprising an interior volume that is contiguous with an interior volume of the GC oven; and a duct extending from a region of relatively high or relatively low pressure within the GC oven to the conduit interior volume and operable so as to transmit a flow of air or gas between the region of relatively high or relatively low pressure and the conduit interior volume, wherein a portion of the GC column extends through the conduit interior volume to the ion source. | 09-09-2010 |
| 20100281948 | Spiral, Microchanneled Chromatographic Column And Detection Systems - The present disclosure relates to a spirally wrapped chromatographic structure, a system incorporating such structure and a method of providing such structure. The structure may include an absorber layer having a first surface and a second surface, wherein one or a plurality of channels are defined in the first surface. The structure may also include a support layer having a first surface and a second surface, the first surface of the support layer disposed on the second surface of the absorber layer, wherein the absorber layer and the support layer comprise a spiral configuration such that at least a portion of the first surface of the absorber layer contacts at least a portion of the second surface of the support layer. | 11-11-2010 |
| 20110011155 | PROCESS FOR ANALYZING LOW MOLECULAR WEIGHT ORGANIC COMPOUND HAVING AT MOST 20 CARBON ATOMS IN CLOTH MADE OF CHEMICAL FIBERS TREATED WITH WATER AND OIL REPELLENT AGENT - To provide a process, whereby a low molecular weight organic compound having at most 20 carbon atoms present in a trace amount in a cloth made of chemical fibers treated with a water and oil repellent agent, can be accurately analyzed. | 01-20-2011 |
| 20110056271 | METHOD FOR MEASUREMENT OF CRUDE OIL AND BITUMEN DEAD OIL VISCOSITY AND DENSITY - A process is described for measuring a property of oil extracted from a sample, for example, the viscosity or density. The oil is extracted from the sample using a volatile polar first solvent. A portion of the extracted oil is used to determine a concentration factor. A dry weight of the oil in the sample is calculated using the concentration factor. A second solvent less volatile than the first solvent is added to the remaining extract. The first solvent is substantially removed from the remaining extract. Different amounts of the second solvent are removed from each of a series of sub-samples taken from the remaining extract. Solvent concentrations and viscosity values and/or density values of the solvent-oil mixtures are measured for each sub-sample. Based on the measured solvent concentrations and viscosity values and/or density values, the second-solvent free viscosity and/or density of the oil in the sample is estimated. | 03-10-2011 |
| 20110138877 | Helium Reclamation Systems and Methods for a Gas Chromatograph - A system for recycling helium carrier gas comprises: a bladder, the bladder interior fluidically configured so as to receive helium-bearing gas output from at least one of a split vent and a septum purge vent of a gas chromatograph; a compartment containing the bladder; a source of pressurized air or gas operable so as to supply pressurized air or gas into the compartment interior so as to compress the bladder containing the helium-bearing gas; a gas reservoir fluidically coupled to the bladder interior so as to receive the helium bearing gas from the compressed bladder interior; and at least one gas purification module configured so as to receive the helium-bearing gas from the gas reservoir and operable to remove contaminants from the helium-bearing gas, an output of the at least one gas purification module being fluidically coupled to a carrier gas inlet of the gas chromatograph. | 06-16-2011 |
| 20110146380 | Capsule Injection System for Gas Chromatography - 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. | 06-23-2011 |
| 20110192215 | Analytical System for In-Line Analysis of Post-Combustion Capture Solvents - A device and method is described for direct analysis of solvents used to chemically bind with CO | 08-11-2011 |
| 20110232365 | METHOD FOR ANALYZING PETROLEUM-BASED FUELS AND ENGINE OILS FOR BIODIESEL CONTAMINATION - A method for detecting contamination of a conventional petroleum-based fuel used in an internal combustion engine is provided. A sample of engine oil is separated into a polar component and a non-polar component by a polar solvent. The polar component is analyzed for one or more biodiesel chemical components selected from the group consisting of plant sterols, fatty acid methyl esters, cetane, and combinations thereof, which relate to a degree of engine oil contamination. The polar and non-polar component may be analyzed by Gas Chromatography and Mass Spectrometry (GC/MS) and optionally Flame Ionization Detection (FID) for the one or more biodiesel chemical components, which can provide a semi-quantitative level of such biodiesel chemical components. Fuel samples can also be analyzed for biodiesel contamination species via GC/MS. | 09-29-2011 |
| 20120011920 | Light oil composition - The invention provides a gas oil composition wherein the molar ratio of isoparaffins with carbon number of m and two or more branches to isoparaffins with carbon number of m and one branch within the range of C10-21 is 0.05-3.5, wherein m is an integer of 10-21, and the molar ratio of isoparaffins with carbon number of n and two or more branches to isoparaffins with carbon number of n and one branch within the range of C22-25 is 0.1-10.0, wherein n is an integer of 22-25. The invention also provides a gas oil composition wherein the molar ratio of isoparaffins with carbon number of m and two or more branches to isoparaffins with carbon number of m and one branch within the range of C10-23 is 0.05-4.0, wherein m is an integer of 10-23, and the distillate volume at a distillation temperature of 250° C. (E250) is 15-65%. | 01-19-2012 |
| 20120085147 | Method and System for Monitoring for the Presence of Phosphate Esters in Jet Fuel - There is provided a method of monitoring for the presence of phosphate esters in jet fuel. The method comprises obtaining from a jet fuel source a jet fuel test sample suspected of containing phosphate esters. The method further comprises combining the jet fuel test sample with a polar solvent and a nonpolar solvent to form a mixture. The method further comprises agitating the mixture. The method further comprises extracting the polar solvent from the mixture. The method further comprises performing a combined gas chromatography and mass spectrometer analysis of the polar solvent to monitor for the presence of any phosphate esters and to obtain an actual concentration level of any phosphate esters. The method further comprises comparing the actual concentration level of any phosphate esters with a calibration standard concentration of phosphate esters in clean jet fuel. | 04-12-2012 |
| 20120103062 | Sample preparation for gas analysis using inductive heating - Improved gas analysis for non-gaseous samples is provided by placing the sample in direct contact with an inductive heating element, followed by inductively heating the heating element to provide gas for analysis. Disposable sample vials including such a heating element can be employed, or a sample tube including an inductive heating element can be configured to mate to the input gas line of a gas analysis system. | 05-03-2012 |
| 20130067991 | Hydrocarbon Separation and Analysis Apparatus and Methods - The inventive technology may involve, in particular embodiments, novel use of a non-porous, high surface energy stationary phase to adsorb, in reversible fashion, the most polar component of a resins fraction of an input hydrocarbon when a mobile phase is passed over the stationary phase. Such reversible adsorption prevents irreversibly adsorption of such components on active stationary phase(s) downflow of the non-porous, high surface energy stationary phase, thereby conserving stationary phase costs and increasing resolution of resins elutions, and accuracy of hydrocarbon component results. Aspects of the inventive technology may also involve a novel combination of a solubility based asphaltene component fractionating and analysis method and an adsorption chromatography method for separating and/or analyzing saturate, aromatics and resins components of an input hydrocarbon. | 03-21-2013 |
| 20130074579 | Methods and Apparatus for Analyzing Samples and Collecting Sample Fractions - Methods and apparatus for analyzing a sample using at least one detector are disclosed. | 03-28-2013 |
| 20130219991 | GAS CHROMATOGRAPHY RECOMPOSITION-OLFACTOMETRY FOR CHARACTERIZATION OF AROMA MIXTURES - A method for the in-instrument recombination of volatiles using a gas chromatograph with mass spectrometry and olfactometry detection is described. Compounds that are introduced into the modified GC are separated conventionally on an analytical capillary GC column. The elution profile of volatiles can be segmented, analyzed and arbitrarily combined. In-line with the GC column, a pneumatic flow switch and splitter are connected to a detector and olfactometer. A cold trap allows the user to build a mixture of separated volatiles that is held until the cryotrap is rapidly heated, releasing the mixture for a subject to smell at the olfactory port and to evaluate. The instrument allows for characterization of the aroma quality of specific fractions of aroma volatiles obtained from foods, flowers or beverages without the need for pure chemical standards or the calculation of individual compound concentrations or sensory thresholds. | 08-29-2013 |
| 20130233054 | NEEDLE TRAP FOR USE WITH A GAS CHROMATOGRAPH-MASS SPECTROMETER FOR FIELD SAMPLING AND ANALYSIS - A system and method for improving operation of a needle trap by changing a flow path through a needle trap to enable a needle to draw a fluid sample into a working end of the needle and out through the side hole, wherein drawing the sample through the side hole eliminates the possibility of a leak through the side hole while drawing a fluid sample into the working end. | 09-12-2013 |
| 20140000341 | Method for a Gas Chromatograph to Mass Spectrometer Interface | 01-02-2014 |
| 20140020447 | TRACE ANALYTE EXTRACTION USING ADSORPTIVE CARBIDE-DERIVED NANOPOROUS CARBON POWDERS - In the method of latent print analysis, wherein the improvement comprises using an ultra-fine, nanoporous carbon material as an adsorptive powder to identify trace chemicals found within oils of a print. | 01-23-2014 |
| 20140069167 | Device for Providing Gases, in Particular for Isotopic Ratio Analysis - A device is provided for delivering gases to an analyzer, such as an isotopic ratio mass spectrometer. The device includes first and second reactors, preferably arranged in parallel. At least one of the reactors may be selectively activated, or means may be incorporated to circumvent one of the reactors, such that different types of gas conversions may be achieved. | 03-13-2014 |
| 20140116111 | GAS CHROMATOGRAPH MASS SPECTROMETER - A gas chromatograph mass spectrometer including: an oven for gas chromatography, a mass spectrometry part, a sample vaporization chamber, a gas supply part, and a control part. When the replacement operation of a septum or a glass insert begins, the control part controls the gas supply part so that the flow rate of a carrier gas has a constant pressure and then controls heaters so that temperature is equal to or less than a temperature at which replacement is possible. When temperature becomes equal to or less than the temperature at which replacement is possible and the replacement operation of the septum or the glass insert is completed, the control part controls the heaters so that the temperature is an analysis temperature and controls the gas supply part to employ the same control method for the flow rate of the carrier gas as that before the replacement operation is begun. | 05-01-2014 |
| 20140116112 | METHODS FOR DETERMINING THE PRESENCE OR ABSENCE OF CONTAMINANTS IN A SAMPLE - Methods are provided for rapidly determining the presence or absence of large numbers of contaminants in a test sample, such as a raw material intended for use in the preparation of a nutraceutical. The disclosed methods employ gas chromatography-mass spectrometry techniques together with the specific use of software in combination with a database to analyze data collected after ionization of the sample and determine the presence or absence of the contaminants in the sample. | 05-01-2014 |
| 20140216133 | Gas Chromatograph Having an Absorption Spectrometer and Method for Analyzing a Gas Mixture Via Gas Chromatography - A method in which a sample of a gas mixture to be analyzed via gas chromatography is conducted through a chromatographic separating device via a carrier gas, separated components of the gas mixture are subsequently quantitatively determined in an absorption spectrometer having a wavelength-adaptable light source, and in order to increase the speed of analysis and to be able to also determine components that cannot be measured via absorption spectroscopy, the wavelength of the light source can be adapted to an absorption line of the carrier gas, where the individual components of the gas mixture are determined indirectly via a concentration reduction of the carrier gas. | 08-07-2014 |
| 20140250977 | CHEMICAL ANALYSIS INSTRUMENT WITH MULTI-PURPOSE PUMP - A mass spectrometer for analyzing a sample may include an analysis chamber for analyzing the sample and a first vacuum pump operably connected to the analysis chamber, wherein the first vacuum pump operates to create a first vacuum state. The mass spectrometer may also include a sample-preparation chamber operably connected to the analysis chamber and a second vacuum pump that operates to create a second vacuum state, wherein the first vacuum state is a lower pressure than the second vacuum state. The second vacuum pump may be operably connected to the first vacuum pump in a first configuration, and the second vacuum pump may be operably connected to the sample-preparation chamber in a second configuration. | 09-11-2014 |
| 20140260535 | GAS CHROMATOGRAPHIC "IN COLUMN" SPECTROSCOPIC ANALYSIS - A chemical detector for rapid, simultaneous detection of multiple chemicals including chemical warfare agents, toxic industrial chemicals, and explosives having one or more gas chromatography columns each with a chemosorbent or a chemo-reactive stationary phase and an infrared-transparent base, a bright infrared light source, a mechanism to direct the light source to any point along any of the columns, and an infrared sensor. Another disclosed detector has one or more gas chromatography columns each on the surface of a substrate having at least one infrared-transparent waveguide pattern, a bright infrared light source, and at least one ring resonator for each column, where each ring resonator is coated with a chemosorbent or a chemo-reactive stationary phase, and where each ring resonator spectroscopically probes the stationary phase. Also disclosed are the related methods for chemical detection. | 09-18-2014 |
| 20140260536 | MASS SPECTROMETRY (MS) IDENTIFICATION ALGORITHM - A system includes a gas chromatograph configured to determine experimental chromatographic data including retention times associated with samples. The system also includes a mass spectrometer configured to determine experimental mass spectral data associated with samples. The mass spectrometer can include a quadrupole field ion trap that uses a non-classical detection technique. The system. determines a retention index for an unknown sample based upon retention times for a calibration sample and the unknown sample, and identifies reference mass spectral data using the retention index. The reference mass spectral data can include spectra measured using a classical detection technique. The system can compare the experimental mass spectral data to the reference mass spectral data using one or more comparison metrics, such as a percent fragment match and/or a variance match. A score can be determined to identify the unknown sample using one or more of the metrics. | 09-18-2014 |
| 20140326043 | Energy store, system including the energy store, and method for ascertaining the state of health of an energy store - An energy store, in particular to a lithium-based energy store. In order to make a simple and exact determination of a state of health, e.g., the aging condition, possible, the energy store includes at least one cell having an anode, a cathode, and an electrolyte which is situated between the anode and the cathode, at least one cell having an outlet for conveying functional material from the cell to an analysis unit and the outlet being connectable to the analysis unit in a fluid-tight manner. Also described is a system including the energy store and an analysis unit, and a method for ascertaining a state of health of an energy store. | 11-06-2014 |
| 20150059439 | FLUIDIC DEVICES AND METHODS USING THEM - Certain embodiments described herein are directed to chromatography systems that include a microfluidic device configured to provide three-way switching or switching between three or more inputs or outputs. The microfluidic device can be fluidically coupled to one or more switching valves to provide for selective control of fluid flow in the chromatography system. | 03-05-2015 |
| 20150059440 | Vacuum Ultraviolet Absorption Spectroscopy System And Method - An efficient absorption spectroscopy system is provided. The spectroscopy system may be configured to measure solid, liquid or gaseous samples. Vacuum ultra-violet wavelengths may be utilized. Some of the disclosed techniques can be used for detecting the presence of trace concentrations of gaseous species. A preferable gas flow cell is disclosed. Some of the disclosed techniques may be used with a gas chromatography system so as to detect and identify species eluted from the column. Some of the disclosed techniques may be used in conjunction with an electrospray interface and a liquid chromatography system so as to detect and identify gas phase ions of macromolecules produced from solution. Some of the disclosed techniques may be used to characterize chemical reactions. Some of the disclosed techniques may be used in conjunction with an ultra short-path length sample cell to measure liquids. | 03-05-2015 |
| 20150068279 | ELECTRO-ENHANCED SOLID-PHASE MICROEXTRACTION METHOD - The electro-enhanced solid-phase microextraction (EE-SPME) method involves extraction that is performed with an SPME fiber, preferably made of polydimethylsiloxane (PDMS), in the presence of an applied electric potential for a predetermined period of time. Polar analytes are extracted onto the fiber, which is the stationary phase. The solid-phase microextraction fiber is then inserted into an injection port of a gas chromatograph coupled with a mass spectrometer. The polar analytes are desorbed in the injection port, and are analyzed by GC-MS to detect and quantify the individual components. The method is particularly useful for the detection of trace amounts of plasticizers, such as phthalate esters and bisphenol A, that are known to disrupt the endocrine system of humans and animals above known levels | 03-12-2015 |
| 20150096349 | OPTIMIZE ANALYTE DYNAMIC RANGE IN GAS CHROMATOGRAPHY - A non-specific gas analyzer with a wide dynamic range of concentration is used to assess the gas sample for total load of volatile organic constituents, and then control either a dilution with neutral gas or the quantity of sample aspirated in order to consistently deliver an appropriate total load of volatile analyte to a high-sensitivity analyzer. Such high-sensitivity analyzers may be gas chromatography combined with mass spectrometry or related mass spectrometry configurations, such as selected ion flow tube mass spectrometry, gas chromatography combined with ion mobility spectrometry, or related ion mobility configurations such as differential mobility spectrometry. | 04-09-2015 |
| 20150107331 | INTEGRATED HYDROCARBON ANALYSIS - Petroleum or other hydrocarbon samples can be analyzed in parallel by 1) GC-field ionization Time of Flight Mass Spectrometer (GC-FI-TOF MS) and 2) two dimensional gas chromatography (2D-GC) equipped with a flame ionization detector (FID). The combined techniques allow for improved quantitative characterization of the compounds within a hydrocarbon sample. The techniques can be combined by correlating the 2D-GC FID data with the GC-FI-TOF MS data based on correlation of compound classes, correlation of retention windows within a compound class, correlation of individual compounds, such as paraffins, or a combination thereof. | 04-23-2015 |
| 20150121993 | DISPERSIVE LIQUID-LIQUID MICROEXTRACTION METHOD OF DETECTING N-NITROSOAMINES - The dispersive liquid-liquid microextraction (DLLME) method of detecting N-nitrosoamines (NAs) is a DLLME performed with a xylene extraction solvent and a methanol disperser solvent. The microextraction is preferably performed by a programmable array logic (PAL) auto-sampler. Determination and measurement of concentration of the NAs in the water sample being found by a gas chromatograph coupled with a mass spectrometer (GC-MS). | 05-07-2015 |
| 20150377845 | FULLY AUTOMATED ANALYTICAL METHOD FOR DETERMINATION OF CHLOROETHERS IN WATER AND URINE SAMPLE - A fully automated flow assisted-solid-phase microextraction (FA-SPME) is developed for the determination of chloroethers in aqueous samples. A CTC CombiPAL autosampler coupled with gas chromatography-mass spectrometry (GC-MS) is used to automate the extraction process. In this method, the SPME fiber is exposed to a sample in direct immersion. After exposure, the fiber is desorbed at the injection port of GC-MS. | 12-31-2015 |
| 20150377854 | FIBERS WITH CHEMICAL MARKERS USED FOR CODING - Disclosed are fibers which contain identification fibers. The identification fibers can comprise one or more chemical markers, or taggants, which may vary among the fibers or be incorporated throughout all of the fibers. The disclosure also relates to the method for making and characterizing the fibers. Characterization of the fibers can include identifying chemical markers and correlating the chemical markers and a taggant chemical marker amounts of at least one of the chemical markers to manufacturer-specific taggants to determine supply chain information. The supply chain information can be used to track the fibers from manufacturing through intermediaries, conversion to final product, and/or the consumer. | 12-31-2015 |
| 20160011166 | METHOD FOR IDENTIFYING THE OAK SPECIES OF AN OAK WOOD SAMPLE | 01-14-2016 |
| 20160013037 | APPARATUS AND METHODS FOR PLASMA-ASSISTED REACTION CHEMICAL IONIZATION (PARCI) MASS SPECTROMETRY | 01-14-2016 |
| 20160041132 | FINGERPRINTING FOR GAS LIFT DIAGNOSTICS - Method for determining the depth of entry of lift gas into a production tube of a gas lift well includes the step of determining the concentration of GCOI endogenous to formation gas produced from the production tube of a gas lift well and absent from gas used as the lift gas in said gas lift well versus time after a perturbation of the rate of introduction of said lift gas into said production tube via one or more gas lift valves. The invention includes a system configured for evaluating the performance of gas lift well, including a separator, a flow regulation device, a measurement device for measuring over time the concentration of a GCOI in production fluids, a data collection and storage device for recording data from the measurement device, and a computer program product embodied on a computer-readable medium for analyzing the data collected by the measuring device. | 02-11-2016 |
| 20160061790 | QUANTIFICATION OF ASPHALTENE INHIBITORS IN CRUDE OIL USING THERMAL ANALYSIS COUPLED WITH MASS SPECTROMETRY - The present invention generally relates to a novel method for the characterization and quantification of involatile macromolecules in hydrocarbon samples of crude oil. More particularly, the method utilizes pyrolysis/gas chromatography/mass spectrometry (PY/GC/MS, PY/GC/MS/MS or PY/GC/triple quad MS) to detect and quantify polymeric asphaltene inhibitors in crude oil. | 03-03-2016 |
| 20160077066 | ANALYTICAL METHOD FOR DETECTING FUEL MARKERS - A gas chromatographic method for detecting a marker compound in a fuel by (a) introducing a sample of fuel into a first capillary column coated with a stationary phase based on polydimethylsiloxane and allowing the sample to flow through the first column to produce a first effluent; (b) allowing the first effluent to pass through a detector and identifying a retention time range in it which includes a retention time of the marker compound; (c) introducing only a portion of the first effluent stream which is within the retention time range into a second capillary column coated with either (i) an ionic sorbent or (ii) a polyethylene glycol, and allowing said portion to flow through the second capillary column to produce a second effluent stream; and (d) allowing the second effluent to pass through a detector; wherein the marker compound has formula Ar(R | 03-17-2016 |
| 20160091467 | Prediction of Fuel Properties - A system is described that includes a known fuels database of data from gas chromatography-mass spectrometry analyses of a library of fuels with known fuel properties for a multiple known fuel samples. Gas chromatography-mass spectrometry equipment can acquire gas chromatography-mass spectrometry data for an unknown fuel sample. A metaspectrum module can accept and transform the gas chromatography-mass spectrometry data collected by the gas chromatography-mass spectrometry equipment for the unknown fuel sample into a single metaspectrum for the unknown fuel sample, wherein the metaspectrum is a quantitative representation of every compound detected in the unknown fuel sample. A correlation module can correlate the metaspectrum for the unknown fuel sample to a plurality of fuel properties of known fuel samples using a regression model to predict fuel properties for the unknown fuel sample. A reporting module can report the fuel properties for the unknown fuel sample to a user. | 03-31-2016 |
| 20160097748 | AUTONOMOUS AMBIENT AIR SAMPLING SYSTEM FOR MONITORING SEMI-VOLATILE/NON-VOLATILE ORGANIC COMPOUNDS - An automated ambient air sampling system and method for monitoring organic compounds that may provide continuous data, the system including a thermal desorption system, an injection port, a pre-concentration system, a gas chromatograph and an ion trap mass spectrometer, wherein an air sampling chamber may also function as a thermal desorption chamber. | 04-07-2016 |
| 20160139091 | TRAPS FOR USE WITH CHROMATOGRAPHY SYSTEMS - Certain configurations are provided herein of a trap that can be used with chromatography systems. In certain instances, the trap may be designed to remove substantially all oil in a sample comprising the oil and an analyte of interest. Methods using the gravity trap are also described. | 05-19-2016 |
| 20160377581 | Vacuum Ultraviolet Absorption Spectroscopy System And Method - An efficient absorption spectroscopy system is provided. The spectroscopy system may be configured to measure solid, liquid or gaseous samples. Vacuum ultra-violet wavelengths may be utilized. Some of the disclosed techniques can be used for detecting the presence of trace concentrations of gaseous species. A preferable gas flow cell is disclosed. Some of the disclosed techniques may be used with a gas chromatography system so as to detect and identify species eluted from the column. Some of the disclosed techniques may be used in conjunction with an electrospray interface and a liquid chromatography system so as to detect and identify gas phase ions of macromolecules produced from solution. Some of the disclosed techniques may be used to characterize chemical reactions. Some of the disclosed techniques may be used in conjunction with an ultra short-path length sample cell to measure liquids. | 12-29-2016 |
