Patent classifications
G01N30/12
Thermal conductivity detector and gas chromatograph including same
An upstream portion of a flow path is stored in a cell block. A filament for detecting thermal conductivity of a sample gas is stored in the upstream portion. The sample gas is led to a downstream portion of an exhaust pipe path through the flow path. The flow path is kept warm by a temperature retainer such that the temperature of the sample gas that passes through the exhaust pipe path does not decrease to a temperature equal to or lower than a liquefaction temperature of the sample gas. Alternatively, at least one portion including a downstream end of the exhaust pipe path is provided to be attachable to and detachable from another portion of the flow path.
ANALYTICAL DEVICE
An analytical device includes: a sample vaporization chamber into which a sample is to be injected and which, if the sample is a liquid sample, is configured to vaporize the liquid sample; a first temperature regulation unit and a second temperature regulation unit configured to regulate a temperature of the sample vaporization chamber; and a detection unit configured to detect the sample which is separated at a separation column that is connected with the sample vaporization chamber, the separation column being configured to separate the sample in a gas phase.
Analysis system, analysis assistance device, analysis execution method and analysis assistance method
At least one of method information representing an analysis execution method to be used for analysis of a sample and device information for specifying the configuration of an analysis device is acquired as analysis information by an analysis information acquirer. Syringe information for specifying the configuration of a syringe is acquired by a syringe information acquirer. Based on the analysis information and the syringe information, whether the syringe is suitable for analysis of the sample is judged by a judge. The result of judgement by the judge is presented by a presenter.
Analysis system, analysis assistance device, analysis execution method and analysis assistance method
At least one of method information representing an analysis execution method to be used for analysis of a sample and device information for specifying the configuration of an analysis device is acquired as analysis information by an analysis information acquirer. Syringe information for specifying the configuration of a syringe is acquired by a syringe information acquirer. Based on the analysis information and the syringe information, whether the syringe is suitable for analysis of the sample is judged by a judge. The result of judgement by the judge is presented by a presenter.
Industrial process stream compositional headspace analysis
A system and method for compositional analysis of a process stream in an industrial process transports a liquid process stream through an absorption/desorption packed column (A/D column), along with a carrier gas. A gas phase combination of the carrier gas and one or more solutes from the liquid process stream is passed out of the A/D column to a flow cell for analysis by an analyzer to determine presence and concentration of the one or more solutes within the gas phase. A processor uses the concentration of the solutes within the gas phase to perform a headspace analysis to determine the concentration of the solutes in the process stream.
Sample preconcentration system and method for use with gas chromatography
The disclosed system and method concentrates and enriches a chemical sample while removing water and/or CO2 prior to analysis, improving detection limits and repeatability of quantitative chemical analysis without the need for cryogenic or sub-ambient cooling. The system can include a valve system, a dewpoint control zone, and a multi-capillary column trapping system (MCCTS). During a first time period, the valve system can couple the dewpoint control zone to the MCCTS. During a second time period, the valve system can couple the MCCTS to the chemical separation column such the dewpoint control zone is bypassed. Excess water included in the sample can condense in the dewpoint control zone as the sample transfers to the dewpoint control zone and MCCTS. When the sample is transferred from the MCCTS to the chemical separation column, the condensed water in the dewpoint control zone is not transferred to a chemical separation column.
Sample preconcentration system and method for use with gas chromatography
The disclosed system and method concentrates and enriches a chemical sample while removing water and/or CO2 prior to analysis, improving detection limits and repeatability of quantitative chemical analysis without the need for cryogenic or sub-ambient cooling. The system can include a valve system, a dewpoint control zone, and a multi-capillary column trapping system (MCCTS). During a first time period, the valve system can couple the dewpoint control zone to the MCCTS. During a second time period, the valve system can couple the MCCTS to the chemical separation column such the dewpoint control zone is bypassed. Excess water included in the sample can condense in the dewpoint control zone as the sample transfers to the dewpoint control zone and MCCTS. When the sample is transferred from the MCCTS to the chemical separation column, the condensed water in the dewpoint control zone is not transferred to a chemical separation column.
EVALUATION OF SOURCE ROCK SAMPLES FROM SUBTERRANEAN RESERVOIRS
A pyrolysis system for evaluating a source rock sample from a subterranean reservoir and methods are described. The pyrolysis system includes a reactor vessel including a body with an open end, a cover attachable to the body, a heating system, a collector assembly. The body and the cover define a sealable chamber; a source rock sample holder sized to be received inside the sealable chamber; and a sensor system. The sensor system includes a direct sensor assembly associated with the source rock sample holder, sized to be received inside the sealable chamber, and operable to measure properties of the source rock sample in the source rock sample holder; and a pyrolysis products sensor assembly in fluid communication with the collector assembly of the reactor vessel.
System and Method of Trace-Level Analysis of Chemical Compounds
Techniques disclosed herein can be used to perform a rapid, splitless injection of a sample including SVOCs and VOCs. In some embodiments, a system includes two focusing traps combined in series, one inside of a GC oven and one in a separate oven to concentrate the SVOCs inside of the GC oven and concentrate the VOCs outside of the GC oven. Heating the VOC focusing trap and reversing the flow through both focusers allows splitless injection of compounds boiling from as low as −100° C. to as high as 600° C. in a single analysis, with a narrow injection bandwidth to optimize both sensitivity and the resolving power of the analyzer.
System and Method of Trace-Level Analysis of Chemical Compounds
Techniques disclosed herein can be used to perform a rapid, splitless injection of a sample including SVOCs and VOCs. In some embodiments, a system includes two focusing traps combined in series, one inside of a GC oven and one in a separate oven to concentrate the SVOCs inside of the GC oven and concentrate the VOCs outside of the GC oven. Heating the VOC focusing trap and reversing the flow through both focusers allows splitless injection of compounds boiling from as low as −100° C. to as high as 600° C. in a single analysis, with a narrow injection bandwidth to optimize both sensitivity and the resolving power of the analyzer.