Matches 1 - 50 out of 151 1 2 3 4 >


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US20130152666 Gas Chromatograph Column Markings to Determine Length  
A gas chromatograph column is marked with a code that allows an operator or machine to accurately determine the distance between two points on the column by comparing markings at the two points on...
US20130177932 EX-VIVO METHOD FOR THE EARLY DIAGNOSIS OF MINIMAL HEPATIC ENCEPHALOPATHY BY MEANS OF THE DETERMINATION OF THE 3-NITROTYROSINE IN SERUM  
An ex-vivo method for the early diagnosis of minimal hepatic encephalopathy by means of determining serum 3-nitrotyrosine relates to an ex-vivo method for the detection and early diagnosis of...
US20140260974 CAPILLARY MICROEXTRACTOR OF VOLATILES (CMV)  
A capillary microextractor of volatiles (CMV) allows the sampling of diagnostic volatiles that can be an explosive, explosive taggant, drug, poison, decomposition products thereof, a mixture of...
US20130233055 GAS CHROMATOGRAPH  
In gas chromatographic analysis, the consumption of a sample and the consumption of a carrier gas are reduced. In a direct injection unit (8), a small-capacity syringe (11) having a volume that...
US20150047414 METHOD FOR ANALYZING A CORK STOPPER FOR THE PRESENCE OF 2,4,6-TRICHLOROANISOLE AND DEVICE FOR PERFORMING THE SAME  
A non-destructive method for analyzing a cork stopper for the presence of 2,4,6-trichloroanisole. The stopper is introduced into a hermetically closed container. The container containing the...
US20140087471 METHOD FOR DETECTING URINE ODOR FROM AIR CONDITIONER, REPRODUCING URINE ODOR AND PREPARING CORRESPONDING URINE ODOR COMPOSITION  
Disclosed herein is a method for identifying the compounds contributing to urine odor emitting from an air conditioner, a method for artificially reproducing the detected urine odor, and preparing...
US20110067482 CALIBRATION PROCEDURES AND DEVICES FOR INVESTIGATION BIOLOGICAL SYSTEMS  
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. This approach is particularly...
US20120091333 DIAGNOSTIC METHOD  
The present invention relates to methods to identify one or more conditions in a subject. In particular, it relates to methods of identifying a condition such as cancer, which changes a lipid...
US20120326092 VOLATILE ORGANIC COMPOUNDS AS DIAGNOSTIC MARKERS FOR VARIOUS TYPES OF CANCER  
The present invention provides sets of VOCs for breath analysis. Methods of use thereof in diagnosing, monitoring or prognosing breast cancer, head and neck cancer, prostate cancer or colon cancer...
US20080134754 Process for converting biogas to a pipeline grade renewable natural gas  
A process purifies raw biogas created from a renewable source into pipeline grade natural gas and/or D.O.T. specification, or other predetermined specification, gas. The automated scrubbing...
US20090113982 Multi-dimensional explosive detector  
A system and methodology for the trace detection of organic explosives is described. The detector system combines a separation system, such as a gas chromatograph to separate the components of an...
US20120198914 Pressure Activated Sampling System  
Screening an item for prohibited material may include multiple pressurization and rapid depressurization cycles. Screening an item for prohibiting material may include a pressurization chamber...
US20140157871 SYSTEM AND METHOD FOR RAPID ANALYSIS OF POLYMER ADDITIVES  
The subject technology is directed to a CO2-based chromatography system and method for rapid determination of the levels and/or the presence or absence of polymer additives (PAs) leachable or...
US20080006077 Near real-time air monitor having external injector and pressure based flow control  
A pressure based flow control system for an air monitor comprises a chromatograph coupled to a thermal desorption unit in a spatially fixed relationship, an automatic liquid sampler coupled to the...
US20110163226 MEANS AND METHODS FOR ASSESSING LIVER TOXICITY  
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...
US20090260420 Composite Chromatography Column  
Chromatography columns are disclosed. Methods of making chromatography columns and methods of using chromatography columns are also disclosed.
US20100000291 GAS CHROMATOGRAPH OVEN  
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...
US20090199621 Enhanced Sampling Device  
The present invention is directed to an enhanced sampling device, herein referred to as an ESD, for enhancing the collection efficiency of the SPME method by enhancing the flow of the analytes...
US20140208826 Reservoir Sampling Tools and Methods  
Techniques for sampling a subsurface reservoir include lowering a downhole logging tool comprising one or more samplers, a cleaner system, and a sample probe bit into a borehole until at least one...
US20060101899 Gas chromatography sample introduction devices and methods of using the same  
Gas Chromatography (GC) sample introduction devices and methods for using the same are provided. Embodiments include septum retainer nut assemblies for use in GC inlet assemblies, fluid transfer...
US20150107332 MICROFLUIDIC CONTAMINANT TRAP FOR TRAPPING CONTAMINANTS IN GAS CHROMATOGRAPHY  
Microfluidic contaminant traps of certain representative embodiments illustratively comprise: an inlet configured to connect directly or indirectly to a sample inlet of a gas chromatography (GC)...
US20150107334 CONTINUOUS MEASUREMENT CHROMATOGRAPHY AND METHOD OF CONTINUOUS STOCHASTIC PERTURBATION CHROMATOGRAPHY  
A method and system for continuous measurement chromatograph involves stochastically modulating a system variable. The sample can be introduced into a chromatography column. The sample...
US20080105032 HIGH ACCURACY CONTAMINATION ESTIMATION IN HYDROCARBON SAMPLES USING GC X GC  
A method of estimating contamination of oil based mud filtrate in a hydrocarbon sample. The method comprising the steps of obtaining a hydrocarbon sample contaminated with oil based mud filtrate,...
US20090266143 Separation column for chromatographs  
In a chromatograph, a separation column is disposed between an injection system and a detector. The separation column includes a bundle of capillaries which are formed of carbon nanotubes with a...
US20150212056 SEPARATION EFFICIENCY IN SUPERCRITICAL FLUID CHROMATOGRAPHY  
The present technology uses one or more separating segments, i.e. chromatography columns, aligned in series along a flow path. The separating segments are divided by a plurality of heating...
US20150260692 METHOD AND SYSTEM FOR VERIFYING THE AGE OF AN AMINAL PROVIDING MEAT  
The invention provides a method for verifying the age of an animal providing meat using volatile profiles that comprises the step of providing a sample of animal meat. The method uses one or more...
US20090049891 Supercritical-Phase Mixed Chromatography Method and Installation for Implementing Same  
A method for the superficial-phase chromatography of a product comprises the steps which are performed continuously in the following order, namely: an operation consisting in pumping a...
US20100116022 METHOD FOR ANALYZING ENGINE OIL DEGRADATION  
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...
US20100018287 WIRLELINE DOWNHOLE GAS CHROMATOGRAPH AND DOWNHOLE GAS CHROMATOGRAPHY METHOD  
This invention relates to the devices used in the oil and gas industry. Disclosed herein is the use of a high resolution gas chromatograph in the borehole for borehole fluid type determination in...
US20130167616 VOLATIVLE COMPOUNDS TRAP DESORPTION DEVICE AND METHOD FOR DESORBING VOLATILE COMPOUNDS FROM A TRAP  
A method for restoring a volatile compound from a trapping means, wherein the method includes a flowing step wherein a carrier gas flows through the trapping means, at a controlled rate, by...
US20140007652 METHOD AND SYSTEM FOR VERIFYING THE AGE OF AN ANIMAL PROVIDING MEAT  
The invention provides a method for verifying the age of an animal providing meat using volatile profiles that comprises the step of providing a sample of animal meat. The method uses one or more...
US20110271738 ANALYTE DETECTION WITH INFRARED LIGHT  
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...
US20070113616 Device for sample preparation  
The invention relates to a method, particularly suitable for the extraction and enrichment of a volatile component from a liquid, solid or gaseous sample for subsequent introduction into an...
US20090255322 GAS CHROMATOGRAPH  
A sample vaporization unit that attains enhancing of reproducibility through fixing of the sample vaporization unit. Sample vaporization unit (4) at its one end is connected to the distal end of...
US20110100092 METHOD OF DETERMINING THE FUEL CONTENT IN A COMBUSTION ENGINE LUBRICATING OIL  
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...
US20150177200 CHROMATOGRAPH WITH COLUMN ENGINEERING FOR USE IN OIL AND GAS EXTRACTION  
A method, system, and apparatus for analyzing the concentrations and amounts of one or more different compounds comprises filling a chromatographic column with at least two packing materials in...
US20080202196 Apparatus and Methods For Dilution  
Self-calibrating apparatus and methods for dilution of an analyte-containing fluid, and in particular for dilution of analyte concentrations beyond the normal measurement range of a detector,...
US20100005856 APPARATUS FOR PERFORMING DISSOLVED GAS ANALYSIS  
An apparatus for performing dissolved gas analysis on electrical insulating oil. The apparatus is connectable to a first oil source and a second oil source and has a respective sample cell for...
US20090038372 HEATED TRANSFER LINE FOR USE IN HIGH TEMPERATURE MICROWAVE CHROMATOGRAPHY  
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...
US20100206044 COILED CAPILLARY FOR COMPENSATING MECHANICAL STRESS  
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...
US20110146380 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...
US20050223821 Sampling system  
A sampling system for and a method of separating a volume from a flow of a gaseous sample, the sampling system comprising: a first flow channel; a second flow channel intersecting the first flow...
US20100077837 Porous Thin Film and Process for Analyte Preconcentration and Determination  
A porous thin film and a method are disclosed. The film has a generally uniform thickness and includes fused silica particles that provide multiple types of pores in the film. Particles are...
US20120073951 METHODS AND EXTRACTION UNITS EMPLOYING VAPOR DRAW COMPOSITIONAL ANALYSIS  
Embodiments of extraction unit and an analysis method are provided. In one embodiment, the analysis method includes the steps of providing a feed stream and a species-selective solvent to the...
US20110094290 LOW POWER PRECONCENTRATOR FOR MICRO GAS ANALYSIS  
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...
US20100206043 SMOKE EVALUATING DEVICE AND RELATED METHOD  
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...
US20130291623 SEMIVOLATILE ORGANIC CHEMICAL SAMPLING AND EXTRACTION TRANSFER METHOD AND APPARATI  
An apparatus for collecting semivolatile organic chemicals (SOCs) from an atmosphere comprising a housing having an inlet and an outlet and at least one diffusion denuder contained in the housing....
US20110245493 DELIVERY OF DRUG AMINES THROUGH AN INHALATION ROUTE  
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...
US20110011158 SYSTEMS AND METHODS FOR CHEMICAL SAMPLING IN PARTICULATE LADEN GASEOUS ENVIRONMENTS  
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...
US20150068280 DEVICE AND METHOD FOR EXTRACTING COMPOUNDS CONTAINED IN A LIQUID SAMPLE WITH A VIEW TO ANALYSING THEM  
A device for extraction of at least one analyte contained in a liquid sample, including an extraction and desorption zone of the analyte with a stationary phase as the extraction zone, a liquid...

Matches 1 - 50 out of 151 1 2 3 4 >