Matches 1 - 50 out of 67 1 2 >


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US20140208827 HERMETIC MANIFOLD FOR ANALYTICAL INSTRUMENTS  
A planar manifold includes a first, generally planar, layer having a plurality of apertures therethrough. A second layer has a plurality of apertures therethrough. A channel layer defines a...
US20110088452 MICROFABRICATED THERMAL MODULATOR FOR COMPREHENSIVE 2D GAS CHROMATOGRAPHY  
A two-dimensional gas chromatography system having first and second separation columns, a thermal modulator disposed between the first and second columns and having a plurality of stage channels,...
US20140260538 FITTINGLESS PNEUMATIC MULTIPORT SELECTOR VALVE FOR ANALYTIC INSTRUMENTS  
A pneumatic multiport selector valve and analytic instrument employing said valve are provided. The valve includes a base having a mounting surface configured to mount to the analytic instrument....
US20110232366 THERMAL MODULATION DEVICE FOR TWO DIMENSIONAL GAS CHROMATOGRAPHY  
A thermal modulation device for a gas chromatography (GC) system a cold zone, a first hot zone and a second hot zone, which are located outside of a GC oven of the GC system, and a flexible...
US20130186175 Two Stage Thermal Modulator For Gas Chromatography With Thermally Matched Grounding Point  
Disclosed herein are two stage thermal modulators that are useful in the separation of the components of an analyte sample in an analytical method, such as gas chromatography. In some embodiments,...
US20070214866 Two valves switching modulator for comprehensive two-dimensional gas chromatography  
The present invention is an improvement to two-dimensional comprehensive gas chromatography. The improvement is a two-valve switching modulator connecting two different type of separation columns....
US20090133469 Vapour Generators  
A vapour generator system (1, 101) for an IMS (4, 104) or other apparatus has a chamber (9, 109) in which vapour is produced. A fan or other flow generator (6, 106) is connected to an inlet (8,...
US20080092627 GAS CHROMATOGRAPH WITH IMPROVED THERMAL MAINTENANCE AND PROCESS OPERATION USING MICROPROCESSOR CONTROL  
A gas chromatograph controlled by a pair of microprocessors to have improved thermal maintenance and process operation. The microprocessors are operable to run independently of each other, with...
US20110023581 GAS COLLECTION AND ANALYSIS SYSTEM WITH FRONT-END AND BACK-END PRE-CONCENTRATORS AND MOISTURE REMOVAL  
Embodiments of a front-end pre-concentrator module, a back-end pre-concentrator module and a gas analysis subsystem are disclosed, as well as gas analysis systems using combinations of the...
US20130118231 Helium Conservation Device for a Gas Chromatograph  
A device for conserving helium gas in a gas chromatograph system is characterized in that during the majority of an analytical separation, helium is used as the carrier gas while an auxiliary...
US20120103064 Helium Conservation Device for a Gas Chromatograph  
A device for conserving helium gas in a gas chromatograph system is characterized in that during the majority of an analytical separation, helium is used as the carrier gas while an auxiliary...
US20090217735 Gas Chromatography System and Method  
The invention relates to a gas chromatography system for the direct coupling of liquid chromatography and gas chromatography or for the introduction of large sample volumes, which is configured to...
US20080087072 FIELD MOUNTED ANALYZER WITH A GRAPHICAL USER INTERFACE  
The present invention is directed to a field-mounted analyzer having a graphical user interface (GUI). The analyzer has a display screen visible from the exterior of the housing. A plurality of...
US20090211436 COMPLIANT COLUMN SHEATH ASSEMBLY FOR GAS CHROMATOGRAPHY  
A compliant column sheath assembly for use in a gas chromatograph is provided which includes an open tubular column in the form of a helical coil having a coiled lengt of between about 5 and 15...
US20080105033 METHODS AND DEVICES FOR CIRCULATING AIR  
A gas chromatography system comprising a sample introduction device, an oven coupled to the sample introduction device and a detector coupled to the oven is disclosed. In certain examples, the...
US20070204673 FLUID CONTROL DEVICE FOR A GAS CHROMATOGRAPH  
A flow control device for a gas chromatograph is provided. The flow control device includes first and second valves each having alpha and beta operating states and a plurality of ports. In each of...
US20090101017 GAS FLOW PATH SWITCHING UNITS  
Disclosed is a gas flow path switching unit including a gas passage section with a target gas passage for allowing said target gas to pass therethrough. The target gas passage includes a main...
US20150160172 Double-sided Diaphragm Micro Gas-preconcentrator with a Back-on-face Configuration  
A double-sided diaphragm micro gas-preconcentrator has a micro-gas chamber which is formed by stacking an upper silicon substrate with a lower silicon substrate with a back-on-face configuration....
US20100077838 METHOD FOR DETERMINING A LOW CYLINDER PRESSURE CONDITION FOR A GAS CHROMATOGRAPH  
A method for determining a low cylinder pressure condition of a gas chromatograph includes providing gas from the cylinder to an inlet of the gas chromatograph. In particular, the gas is provided...
US20090126457 METHOD FOR IDENTIFYING THE COMPOSITION OF A SAMPLE  
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...
US20070089484 Compact field-mountable gas chromatograph with a display screen  
The present invention is directed to a gas chromatograph having a display screen. The gas chromatograph includes an explosion-proof housing and a transparent panel secured to the housing. The...
US20090158815 MULTI-STAGE INJECTOR FOR FLUID ANALYSIS  
The present invention generally recites a method, system and apparatus for fluid analysis and more specifically recites a method system and apparatus for multistage injection of a fluid to be...
US20140216134 GAS COLLECTION AND ANALYSIS SYSTEM WITH FRONT-END AND BACK-END PRE-CONCENTRATORS AND MOISTURE REMOVAL  
Embodiments of an apparatus including a front-end pre-concentrator module including an inlet, an outlet, and at least one valve to control flow through the inlet, the outlet, or both. The...
US20150192550 GAS ANALYTE SPECTRUM SHARPENING AND SEPARATION WITH MULTI-DIMENSIONAL MICRO-GC FOR GAS CHROMATOGRAPHY ANALYSIS  
The disclosure describes embodiments of an apparatus including a first gas chromatograph including a fluid inlet, a fluid outlet, and a first temperature control. A controller is coupled to the...
US20110259081 GAS ANALYTE SPECTRUM SHARPENING AND SEPARATION WITH MULTI-DIMENSIONAL MICRO-GC FOR GAS CHROMATOGRAPHY ANALYSIS  
The disclosure describes embodiments of an apparatus including a first gas chromatograph including a fluid inlet, a fluid outlet, and a first temperature control. A controller is coupled to the...
US20150233872 FLOW CHANNEL MODULE AND CHROMATOGRAPH PROVIDED WITH THE FLOW CHANNEL MODULE  
A flow channel module comprises a flow channel plate, a flow channel connection block, and a pressing mechanism. The flow channel plate is provided with a main body and a protrusion section...
US20150089998 MANIFOLDS AND METHODS OF USING THEM TO CONTROL FLUID FLOWS  
Certain embodiments described herein are directed to devices that can be used to control fluid flow through one or more detectors. In some configurations, the device can be configured as a...
US20090235719 CO2 ABSORPTION DEVICE FOR ELEMENTAL ANALYSIS INSTRUMENTS  
The invention relates to a CO2-absorption device within an elemental analysis instrument, comprising at least one combustion reactor and one detector, connected by a pneumatic line for the gasses...
US20100147050 Choked Flow Isolator for Noise Reduction in Analytical Systems  
An apparatus and a method of making a measurement using the same. The apparatus includes a channel through which a fluid flows, a detector, and a choked flow channel. The detector measures a...
US20110036142 Precise droplet injection for calibrating a gas chromatography instrument  
A method and apparatus for calibrating a gas chromatography instrument by forcefully shooting a measured droplet which securely passes through a confined passageway without direct intervention of...
US20150184774 Heated rotary valve for chromotography  
A heated rotary valve for use in connection with a sample to be separated in a column for heating the sample to temperature within the valve. The heated rotary valve permits introduction of...
US20080282765 Self-calibrating sensor  
Embodiments of the present invention relate to a gas sensor comprising a flow channel, a concentration modulator positioned in the flow channel, a gas generator in contact with the flow channel,...
US20120090378 HANDHELD GAS ANALYSIS SYSTEMS FOR POINT-OF-CARE MEDICAL APPLICATIONS  
The disclosure describes a substrate with a fluid-handling assembly coupled to the substrate, the fluid-handling assembly including a plurality of fluid-handling components removably coupled to...
US20110100093 Gas Chromatograph Apparatus  
The present invention aims at realizing an energy-saving mode in which the usage of a carrier gas and the power consumption are sufficiently suppressed without causing damage to the apparatus....
US20110016951 METHOD AND APPARATUS FOR THE CONTROL OF GAS PRESSURE IN GAS CHROMATOGRAPHY COLUMNS  
The pressure of a carrier gas entering a gas chromatography (GC) column is controlled by increasing or decreasing the gas pressure over a pressure change cycle by which a desired gas pressure is...
US20110016950 METHOD AND APPARATUS FOR DETECTING AND QUANTIFYING A CHEMICAL COMPOUND IN A FLUID FLOW  
The invention concerns a method for capturing a chemical compound, typically an impurity, and for accumulating said chemical compound on a capture mass CAPT included in at least one removable...
US20090206246 Detection Apparatus and Methods  
Detection apparatus including an IMS detector (1, 100) or the like has a gas inlet (10) with a gas flow path arrangement (40, 41, 102) by which sample gas is supplied to the detector. In one...
US20130031955 GAS FLUX MEASUREMENT USING TRAPS  
A passive sampling apparatus and method for measuring the cumulative mass of a selected gas being transported through a known cross-sectional area, for example, a soil surface, during a chosen...
US20140260540 SAMPLE INLET WITH MULTI-CAPILLARY LINER FOR GAS CHROMATOGRAPHY  
A gas chromatograph (GC) inlet device includes a multi-capillary liner capable of separating components of a sample matrix prior to injecting the sample into an analytical GC column. The device is...
US20150059439 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...
US20140352406 GAS CHROMATOGRAPH APPARATUS  
A gas chromatograph having a column which separates respective components contained in a gas sample introduced via a carrier gas over time, wherein an analysis mode and a standby mode can be...
US20100186481 Miniaturized Gas Chromatography Module with Pre-Stage Miniaturized Unit  
The invention relates to a miniaturized gas chromatography module, comprising: a gas injector unit having a gas injector sample inlet and outlet, the gas injector inlet being connectable with a...
US20080313896 Sensor with layered electrodes  
A thin film sensor, such as a glucose sensor, is provided for transcutaneous placement at a selected site within the body of a patient. The sensor includes several sensor layers that include...
US20110290001 Gas Chromatograph Comprising A Controllable Switching Device  
A gas chromatograph comprising two separating devices disposed one behind the other, and through which a material sample is conducted by a carrier gas. A pressure regulator regulates the pressure...
US20120272715 Analysis of Pressurized Reservoir Fluids  
A self-contained analysis system operable to assess gas to oil ratio (GOR), shrinkage of reservoir fluid, and composition of pressurized reservoir fluids. The analysis system can be used for...
US20130247650 GAS CHROMATOGRAPH  
A gas chromatograph for preventing leakage of carrier gas and secondary accident such as explosion is provided. A flow rate restricting valve having valve mechanism which mechanically restricts...
US20120125083 Gas Chromatography With Ambient Pressure Stability Control  
In a gas chromatography apparatus, a carrier gas is flowed from a carrier gas supply toward an analytical column at a carrier gas pressure. A sample is added to the carrier gas to form a sample...
US20140026638 OPTICALLY HEATED ANALYTE DESORBER FOR GAS CHROMATOGRAPHY ANALYSIS  
Analytes are rapidly desorbed from a carbonaceous sorbent powder with improved quantitation and reduced analyte re-adsorption, thermal degradation, and rearrangement. The sample is distributed in...
US20100206045 METHOD FOR IDENTIFYING THE COMPOSITION OF A SAMPLE  
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...
US20170146503 EVOLVED GAS ANALYZER AND METHOD FOR ANALYZING EVOLVED GAS  
Disclosed herein are an evolved gas analyzer and a method for analyzing evolved gas, the apparatus cooling a sample holder in a short time without using excessive cooling performance and without...

Matches 1 - 50 out of 67 1 2 >