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1. 发明申请

US20190250131A1 DETECTOR FOR GAS CHROMATOGRAPHY 审中-公开
公开(公告)号：US20190250131A1
公开(公告)日：2019-08-15
申请号：US16261812
申请日：2019-01-30
申请人： YOKOGAWA ELECTRIC CORPORATION
发明人： Takumi YOSHIDA
IPC分类号： G01N30/64
CPC分类号： G01N30/66
摘要： A detector for gas chromatography includes a manifold, a first bridge circuit, and a second bridge circuit. A first analysis flow path, a first reference flow path, a second analysis flow path, and a second reference flow path are formed in the manifold. The first bridge circuit is configured to be capable of detecting a predetermined component in a first analysis gas using the first analysis resistive body and the first reference resistive body. The second bridge circuit is configured to be capable of detecting a predetermined component in a second analysis gas using the second analysis resistive body and the second reference resistive body. The distance between the first analysis resistive body and the second reference resistive body is less than the distance between the first analysis resistive body and the second analysis resistive body.

2. 发明申请

US20180128797A1 ANALYZER COMPONENT MONITORING 审中-公开
公开(公告)号：US20180128797A1
公开(公告)日：2018-05-10
申请号：US15448002
申请日：2017-03-02
申请人： Rosemount Analytical Inc.
发明人： Suresh S. Satpute , Sayali P. Gajare , Swati S. Patil
IPC分类号： G01N33/00 , G01N30/86
CPC分类号： G01N33/007 , G01N30/66 , G01N30/8651 , G01N2030/025
摘要： A gas analyzer includes a sample inlet, a sample outlet, a detector, a monitoring component, and a controller. The sample inlet is configured to receive a sample and is coupled to the sample outlet. The detector is operably disposed between the sample inlet and the sample outlet and is configured to provide an indication relative to the sample. The monitoring component is configured to provide a diagnostic indication regarding at least one component of the gas analyzer. The controller is configured to control flow through the gas analyzer and is operably coupled to the detector to analyze the sample, provide the analysis to the monitoring component, and provide the indication of health to an output.

3. 发明授权

US09903770B2 Thermal conductivity detector circuit and method for operating the same 有权
公开(公告)号：US09903770B2
公开(公告)日：2018-02-27
申请号：US14669981
申请日：2015-03-26
申请人： Siemens Aktiengesellschaft
发明人： Glen Eugene Schmidt , Udo Gellert , Aosheng Wang
IPC分类号： G01K17/00 , G01N25/18 , G01N30/66 , G01N30/86
CPC分类号： G01K17/00 , G01N25/18 , G01N30/66 , G01N30/8641
摘要： A thermal conductivity detector includes a switch controllable to short-circuit the input of an amplifier to improve the thermal conductivity detector for use in gas chromatography without the need of an additional reference cell, wherein a digital signal processor calculates a transfer function of an analog signal processor from a digitized difference signal received in response to short-circuiting the input of the amplifier at a given time when solely a reference carrier fluid passes through a measuring cell, and the digital signal processor recovers a detector signal by deconvoluting the digitized difference signal with a transfer function.

4. 发明申请

US20170356890A1 GAS CHROMATOGRAPH 审中-公开
公开(公告)号：US20170356890A1
公开(公告)日：2017-12-14
申请号：US15541935
申请日：2015-01-26
申请人： Shimadzu Corporation
发明人： Maki SAITO
IPC分类号： G01N30/86 , G01N30/54 , G01N30/32 , G01N30/68 , G01N30/02 , G01N30/66
CPC分类号： G01N30/86 , G01N30/02 , G01N30/12 , G01N30/32 , G01N30/54 , G01N30/66 , G01N30/68 , G01N2030/025 , G01N2030/126 , G01N2030/324
摘要： A gas chromatograph is provided which is capable of effectively reducing the amount consumed of a carrier gas, reducing the time and effort required for an operator to manually set parameters, and preventing damages to a column and a detector due to a setting mistake. In a case where a stop operation for the power supply of the gas chromatograph is performed (Yes in step S101), the flow rate of a carrier gas to be supplied to a sample vaporization chamber is decreased and the temperatures of the column and the detector are sufficiently lowered (steps S102 to S104), and then the power supply of the gas chromatograph is switched over from an ON state to an OFF state (step S106).

5. 发明申请

US20140076023A1 GAS CHROMATOGRAPH 有权
标题翻译：气体色谱
公开(公告)号：US20140076023A1
公开(公告)日：2014-03-20
申请号：US14018185
申请日：2013-09-04
申请人： Aosheng WANG , Ray Dean SHEPHERD , Christoph KLAWUN
发明人： Aosheng WANG , Ray Dean SHEPHERD , Christoph KLAWUN
IPC分类号： G01N30/66
CPC分类号： G01N30/66 , G01N30/86
摘要： A gas chromatograph in which components of a sample of a gas mixture are separated via a separation column, a sensing element of a thermal conductivity detector is operated at a first temperature to detect separated components and to generate a detector signal in response to detected components, an evaluation unit evaluates detector signals and determines concentrations of detected components, a further sensing element of a further thermal conductivity detector is operated at a second temperature different from the first temperature, to detect gas components of widely different concentration ranges at high sensitivity, where the thermal conductivity detectors are calibrated for different concentration ranges, and the evaluation unit compares the detector signal with the detector signal of the further thermal conductivity detector to output a concentration value determined from the signal of the thermal conductivity detector calibrated for the measured component concentration.
摘要翻译：一种气相色谱仪，其中通过分离柱分离气体混合物的样品的组分，热导检测器的感测元件在第一温度下操作以检测分离的组分并响应于检测到的组分产生检测器信号，评估单元评估检测器信号并确定检测到的分量的浓度，另外的热导检测器的另一感测元件在与第一温度不同的第二温度下操作，以高灵敏度检测广泛不同浓度范围的气体成分，其中对不同浓度范围校准热导率检测器，评估单元将检测器信号与进一步的热导检测器的检测器信号进行比较，以输出从根据测量的组分浓度校准的热导率检测器的信号确定的浓度值。

6. 发明授权

US08114200B2 Multi-dimensional portable gas chromatograph system 有权
标题翻译：多维便携式气相色谱系统
公开(公告)号：US08114200B2
公开(公告)日：2012-02-14
申请号：US12814147
申请日：2010-06-11
申请人： Sheena Alm , James Bentley , John Blankevoort , Mark Kaspersen , Collin Lewis , Derek Maxwell , Ken Wunner
发明人： Sheena Alm , James Bentley , John Blankevoort , Mark Kaspersen , Collin Lewis , Derek Maxwell , Ken Wunner
IPC分类号： B01D53/02
CPC分类号： G01N30/463 , G01N30/66 , G01N2030/0095 , G01N2030/025 , G01N2030/625
摘要： A portable multi-dimensional gas chromatograph, the gas chromatograph including a carrier gas container, a regulator fluidly connected to the carrier gas container, a dopant chamber containing a reference chemical, at least one pre-concentrator which is fluidly connected to the regulator and the dopant chamber, a first separation column fluidly connected to the at least one pre-concentrator, a second separation column fluidly connected to the at least one pre-concentrator, a first detector fluidly connected to the first separation column, and a second detector fluidly connected to the second separation column.
摘要翻译：一种便携式多维气相色谱仪，气相色谱仪包括载气容器，流体连接到载气容器的调节器，含有参考化学品的掺杂剂室，至少一个流体连接到调节器的预浓缩器和掺杂剂室，与所述至少一个预浓缩器流体连接的第一分离塔，流体连接到所述至少一个预浓缩器的第二分离塔，流体连接到所述第一分离塔的第一检测器和流体连接的第二检测器到第二分离柱。

7. 发明申请

US20110107816A1 THERMAL CONDUCTIVITY DETECTOR 有权
标题翻译：电导率检测器
公开(公告)号：US20110107816A1
公开(公告)日：2011-05-12
申请号：US12613670
申请日：2009-11-06
申请人： Phillip W. BARTH
发明人： Phillip W. BARTH
IPC分类号： G01N25/18
CPC分类号： G01N27/18 , G01N30/66
摘要： A thermal conductivity detector includes a structure defining a cavity, the structure principally comprising a material having a first coefficient of thermal expansion; a sensing element for sensing a thermal conductivity of a gas flowing within the cavity, the sensing element having a second coefficient of thermal expansion different from the third first coefficient of thermal expansion, the sensing element being disposed at least in part within the cavity; and a compensation structure having a third coefficient of thermal expansion different from the first and second thermal coefficients of expansion. Over a selected temperature range, a stress within the sensing element is less than a yield stress of any component of the sensing element, and a stress within the compensation structure is less than a yield stress of any component of the compensation structure.
摘要翻译：热导率检测器包括限定空腔的结构，该结构主要包括具有第一热膨胀系数的材料; 感测元件，用于感测在空腔内流动的气体的热导率，所述感测元件具有不同于所述第三第一热膨胀系数的第二热膨胀系数，所述感测元件至少部分地设置在所述空腔内; 以及具有与第一和第二热膨胀系数不同的第三热膨胀系数的补偿结构。在选定的温度范围内，感测元件内的应力小于感测元件的任何部件的屈服应力，并且补偿结构内的应力小于补偿结构的任何部件的屈服应力。

8. 发明申请

US20100250146A1 MULTI-DIMENSIONAL PORTABLE GAS CHROMATOGRAPH SYSTEM 有权
标题翻译：多维便携式气相色谱系统
公开(公告)号：US20100250146A1
公开(公告)日：2010-09-30
申请号：US12814147
申请日：2010-06-11
申请人： Sheena Alm , James Bentley , John Blankevoort , Mark Kaspersen , Collin Lewis , Derek Maxwell , Ken Wunner
发明人： Sheena Alm , James Bentley , John Blankevoort , Mark Kaspersen , Collin Lewis , Derek Maxwell , Ken Wunner
IPC分类号： G01N30/02
CPC分类号： G01N30/463 , G01N30/66 , G01N2030/0095 , G01N2030/025 , G01N2030/625
摘要： A portable multi-dimensional gas chromatograph, the gas chromatograph including a carrier gas container, a regulator fluidly connected to the carrier gas container, a dopant chamber containing a reference chemical, at least one pre-concentrator which is fluidly connected to the regulator and the dopant chamber, a first separation column fluidly connected to the at least one pre-concentrator, a second separation column fluidly connected to the at least one pre-concentrator, a first detector fluidly connected to the first separation column, and a second detector fluidly connected to the second separation column.
摘要翻译：一种便携式多维气相色谱仪，气相色谱仪包括载气容器，流体连接到载气容器的调节器，含有参考化学品的掺杂剂室，至少一个流体连接到调节器的预浓缩器和掺杂剂室，与所述至少一个预浓缩器流体连接的第一分离塔，流体连接到所述至少一个预浓缩器的第二分离塔，流体连接到所述第一分离塔的第一检测器和流体连接的第二检测器到第二分离柱。

9. 发明授权

US07544233B2 Gas chromatograph with a mass spectrometer situated down therefrom, and method for performing the gas chromatographic/mass spectrometric analysis of a substance mixture 有权
标题翻译：具有位于其下方的质谱仪的气相色谱仪和用于进行物质混合物的气相色谱/质谱分析的方法
公开(公告)号：US07544233B2
公开(公告)日：2009-06-09
申请号：US10554162
申请日：2004-04-28
申请人： Frank Diedrich , Friedhelm Müller
发明人： Frank Diedrich , Friedhelm Müller
IPC分类号： B01D53/02
CPC分类号： H01J49/0422 , G01N30/7206 , G01N30/78 , G01N2030/025 , G01N30/66
摘要： The aim of the invention is to optimize the analysis of substances separated by gas chromatography with a gas chromatograph, comprising a separating device and a mass spectrometer situated down there from. To this end, a detector that detects the separated substances in a nondestructive manner is placed in-line between the output of the separating device and a controllable inlet valve of the mass spectrometer. An evaluating device situated down from the detector evaluates the detector signals and, based on the evaluation, controls the inlet valve for introducing predeterminable substances into the mass spectrometer.
摘要翻译：本发明的目的是通过气相色谱法优化气相色谱分离物质的分析，其中包括分离装置和位于其下的质谱仪。为此，以非破坏性方式检测分离的物质的检测器被放置在分离装置的输出和质谱仪的可控入口阀之间。从检测器向下定位的评估装置对检测器信号进行评估，并且基于评估，控制用于将可预定物质引入质谱仪的入口阀。

10. 发明申请

US20070144238A1 Thermal conductivity detector 有权
标题翻译：导热系数检测器
公开(公告)号：US20070144238A1
公开(公告)日：2007-06-28
申请号：US11318153
申请日：2005-12-23
申请人： Steve Mahoney , John Hinshaw
发明人： Steve Mahoney , John Hinshaw
IPC分类号： G01N30/02
CPC分类号： G01N30/66
摘要： A thermal conductivity detector utilizes a modular thermistor assembly that mounts to the TCD body. The thermistor assembly is easily replaceable in the TCD. Within the TCD, a thermistor bead is always held in the same relative location in a gas flow path, which is designed to produce laminar, low velocity gas flow across the thermistor bead. Two TCDs, each having a heater, are mounted in an insulated enclosure. The heaters are activated to bring the TCDs to operating temperature, and are then deactivated during analysis.
摘要翻译：热导率检测器利用安装在TCD体上的模块式热敏电阻组件。热敏电阻组件可在TCD中轻松更换。在TCD中，热敏电阻珠总是保持在气体流动路径中相同的相对位置，其被设计成产生穿过热敏电阻珠的层流的低速气流。每个具有加热器的两个TCD安装在绝缘外壳中。激活加热器使TCD达到工作温度，然后在分析过程中停用。

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