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1. 发明授权

US09927406B1 Fluidless column oven for gas chromatography system 有权
公开(公告)号：US09927406B1
公开(公告)日：2018-03-27
申请号：US15727006
申请日：2017-10-06
申请人： GC OVENS INC.
发明人： David R. Pierce
IPC分类号： G01N30/30 , G01N30/02
CPC分类号： G01N30/30 , G01N30/7206 , G01N2030/025 , G01N2030/3015 , G01N2030/3038 , G01N2030/3046 , G01N2030/3053 , G01N2030/3061 , G01N2030/3076 , G01N2030/3084
摘要： A system for performing gas chromatography analyzes in accordance with the present disclosure includes an analytical column and a column oven. The analytical column has an inlet portion coupled to an injector for receiving a material sample and an outlet portion coupled to a detector. The analytical column is adapted to direct the material sample from the injector to the detector. The column oven is adapted to heat the analytical column for separating constituent components of the material sample for detection by the detector.

2. 发明授权

US08956534B2 Passive column pre-heater with sample band spreading reduction feature 有权
公开(公告)号：US08956534B2
公开(公告)日：2015-02-17
申请号：US11631730
申请日：2005-08-05
申请人： Edward J. Ognibene , Joseph A. Kareh , Uwe D. Neue , Theodore D. Ciolkosz , Richard W. Andrews , Marc Lemelin , Peyton C. Beals
发明人： Edward J. Ognibene , Joseph A. Kareh , Uwe D. Neue , Theodore D. Ciolkosz , Richard W. Andrews , Marc Lemelin , Peyton C. Beals
IPC分类号： G01N30/30 , B01D15/20 , B01D15/12 , B01D15/16
CPC分类号： B01D15/161 , B01D15/12 , B01D15/20 , G01N30/30 , G01N2030/3046
摘要： Disclosed is a chromatographic system and method which includes a passive pre-heater assembly. In the inventive system and method a fluid mixture is supplied from an injector to the pre-heater assembly and then to a chromatographic column having an active heating source. The pre-heater assembly includes a convoluted tube with first and second ends and a fluid passage extending centrally therebetween, first and second end fittings attached respectively to the first and second ends of the convoluted tube, and a thermally conductive film attached to an outer surface of the convoluted tube. The first end fitting is adapted for fluidly connecting the first end of the convoluted tube to the injector and the second end fitting is adapted for fluidly connecting the second end of the convoluted tube to the chromatographic column. The thermally conductive film conveys heat from an active heating source of a chromatographic column to the convoluted tube when the pre-heater assembly is positioned adjacent to the active heating source. The central fluid passage in the convoluted tube has a series of bends which function to create a secondary fluid flow field that is substantially orthogonal to a primary flow field established when fluid is traversing the fluid passage in the tube.

3. 发明授权

US07332347B2 Apparatus and method for concentrating and collecting analytes from a flowing liquid stream 失效
公开(公告)号：US07332347B2
公开(公告)日：2008-02-19
申请号：US10414254
申请日：2003-04-14
申请人： Liang Li , Boyan Zhang , Alan Austin Doucette
发明人： Liang Li , Boyan Zhang , Alan Austin Doucette
IPC分类号： B01D1/02 , B01D1/06 , B01D1/14
CPC分类号： G01N1/40 , G01N30/84 , G01N35/028 , G01N35/10 , G01N2001/4027 , G01N2030/6013 , G01N2030/8417 , G01N2030/8476 , Y10T436/25 , Y10T436/25375 , Y10T436/2575 , G01N2030/3046
摘要： An apparatus for concentrating and collecting one or more analytes in a flowing liquid stream of a carrier solvent composed of one or more solvent components is provided, which includes a transfer tube which forms a bore having an inlet and an outlet, the inlet being adapted to accept the flowing liquid stream, and the outlet being adapted to form continuously replaced, hanging droplets of the liquid stream, and a collection device mounted below the outlet of the transfer tube for collecting the droplets. The apparatus includes a device for heating the liquid stream in the transfer tube to a temperature sufficient to cause partial evaporation of the carrier solvent from the hanging droplets but not exceeding the boiling point of the carrier solvent, and a device for heating the collection device to a temperature sufficient to cause further evaporation of the carrier solvent from the collected droplets. Also provided is a method for concentrating and collecting one or more analytes in a flowing liquid stream of a carrier solvent composed of one or more solvent components. The method includes the steps of introducing the liquid stream into a transfer tube which forms a bore having an inlet and an outlet, the inlet being adapted to accept the flowing liquid stream, and the outlet being adapted to form continuously replaced, hanging droplets of the liquid stream, and heating the liquid stream in the transfer tube while controlling the temperature of the liquid stream in the transfer tube to be sufficient to cause partial evaporation of the carrier solvent from the hanging droplets without exceeding the boiling point of the carrier solvent. The method allows the droplets to dislodge from the outlet, and the droplet is collected on a collection device mounted below the outlet of the transfer tube. The collection device is also heated to a temperature sufficient to cause further evaporation of the carrier solvent from the collected droplets.

4. 发明授权

US07063784B2 Processing of chemicals in flow-through device with porous media 失效
公开(公告)号：US07063784B2
公开(公告)日：2006-06-20
申请号：US10736338
申请日：2003-12-15
申请人： Shahnaz Ghassemi Jamalabadi , Peter C. Rahn , Kelvin J. Hammond , Omar Mneimne , Jeffrey A. Horsman , Peter C. Van Davelaar
发明人： Shahnaz Ghassemi Jamalabadi , Peter C. Rahn , Kelvin J. Hammond , Omar Mneimne , Jeffrey A. Horsman , Peter C. Van Davelaar
IPC分类号： B01D15/08
CPC分类号： B01D15/3857 , B01D15/16 , B01D15/20 , B01D15/22 , B01J19/126 , B01J20/281 , B01J20/286 , B01J20/3242 , B01J2219/1227 , B01J2220/54 , G01N30/06 , G01N30/12 , G01N30/48 , G01N30/6091 , G01N2030/121 , G01N2030/3046 , H05B6/806
摘要： A method of processing a sample comprising introducing a sample into a flow-through device containing a porous solid media therein, and thereafter subjecting the device to microwave energy.

5. 发明授权

US06666074B2 Apparatus for conducting high-temperature liquid chromatography analysis 失效
标题翻译：用于进行高温液相色谱分析的装置
公开(公告)号：US06666074B2
公开(公告)日：2003-12-23
申请号：US10444595
申请日：2003-05-23
申请人： Yuri Gerner , Carl W. Sims , Kurt P. Hamberg
发明人： Yuri Gerner , Carl W. Sims , Kurt P. Hamberg
IPC分类号： G01N3000
CPC分类号： G01N30/30 , G01N2030/027 , G01N2030/3046 , G01N2030/3084
摘要： A system for conducting high-temperature liquid chromatographic analysis includes a mobile phase transport tube configured to operably convey mobile phase from a source to respective chromatographic instruments in the system, a pre-heater apparatus operably coupled to the mobile phase transport tube for heating the mobile phase to a desired temperature, a chromatographic column operably coupled to the pre-heater apparatus, and including temperature-maintaining means for maintaining the column at a pre-determined temperature and a counter-flow heat exchanger operably exchanging heat from outlet mobile phase to inlet mobile phase through conductive heat transfer means. In a particular embodiment, the mobile phase passing through the chromatographic column is maintained in a substantially adiabatic environment.
摘要翻译：用于进行高温液相色谱分析的系统包括流动相输送管，其被配置为可操作地将来自源的流动相输送到系统中的相应色谱仪器;可操作地耦合到流动相输送管的预热器装置，用于加热移动相位到期望的温度，可操作地耦合到预热器装置的色谱柱，并且包括用于将色谱柱保持在预定温度的温度保持装置和可操作地从出口流动相到入口交换热的逆流热交换器流动相通过导电传热装置。在一个具体实施方案中，通过色谱柱的流动相保持在基本上绝热的环境中。

6. 发明申请

US20030079523A1 Carrier gas pre-heat system for gas chromatograph 有权
标题翻译：载气预热系统用于气相色谱仪
公开(公告)号：US20030079523A1
公开(公告)日：2003-05-01
申请号：US10062200
申请日：2001-10-29
发明人： Teresa Lechner-Fish
IPC分类号： G01N001/00 , G01N030/02
CPC分类号： G01N30/30 , G01N30/66 , G01N35/1097 , G01N2030/3046 , G01N2030/625
摘要： The invention is a gas chromatograph that includes a mechanism to heat the carrier gas to a temperature higher than that of the columns through which it flows. The carrier gas may be temperature programmed to achieve much the same results as the known technique of temperature programming the column.
摘要翻译：本发明是一种气相色谱仪，其包括将载气加热至高于其流动的塔的温度的机构。载气可以进行温度编程，以获得与已知的温度编程技术相同的结果。

7. 发明申请

US20020178786A1 Planar manifold with integrated heated injector inlet and unheated pneumatics 有权
标题翻译：具有集成加热喷射器入口和未加热气动的平面歧管
公开(公告)号：US20020178786A1
公开(公告)日：2002-12-05
申请号：US09873391
申请日：2001-06-05
发明人： Richard P. White , Alan D. Loux
IPC分类号： G01N030/04
CPC分类号： G01N30/88 , G01N30/20 , G01N30/30 , G01N30/32 , G01N2030/3007 , G01N2030/3046 , G01N2030/8881 , Y10T137/87885
摘要： A planar manifold that integrates all the control pneumatics, electronic pressure controls (EPC), and injector inlet onto a single plate, therefore eliminating numerous seals, fittings and transfer tubing between these devices. The planar manifold utilizes plates of specific geometry that minimizes heat transfer between the heated components and the unheated components in the planar manifold, while maintains the mechanical rigidity to support the attached components during shock and vibration. The planar manifold not only improves the reliability and manufacturability of micro gas chromatographs, but also lowers the cost of production.
摘要翻译：一个将所有控制气动，电子压力控制（EPC）和注射器入口集成到单个板上的平面歧管，因此在这些设备之间消除了许多密封件，配件和输送管道。平面歧管利用具有特定几何尺寸的板，其最小化加热部件与平面歧管中的未加热部件之间的热传递，同时保持机械刚度以在冲击和振动期间支撑附接部件。平面歧管不仅提高了微气相色谱仪的可靠性和可制造性，而且降低了生产成本。

8. 发明授权

US06316759B2 Microwave heating apparatus for gas chromatographic columns 失效
标题翻译：气相色谱柱微波加热装置
公开(公告)号：US06316759B2
公开(公告)日：2001-11-13
申请号：US09729134
申请日：2000-12-01
申请人： Gregory Scott Gaisford , David L. Walters
发明人： Gregory Scott Gaisford , David L. Walters
IPC分类号： H05B680
CPC分类号： H05B6/70 , G01N30/30 , G01N2030/025 , G01N2030/3015 , G01N2030/3038 , G01N2030/3046 , H05B6/6402 , H05B6/705 , H05B6/80
摘要： A microwave heating apparatus is used for heating a chromatographic column assembly containing a microwave absorbing material. The microwave heating apparatus includes an antenna transmitting a microwave signal and a resonant cavity containing the chromatographic column assembly. The chromatographic column assembly extends relative to predetermined electromagnetic field strength contours within the resonant cavity to provide a predetermined heating profile along the length of the chromatographic column assembly. For example, a single-mode chromatographic column microwave oven can be used to heat a coiled chromatography column to a desired temperature gradient along its length. Oven design embodiments utilizing coaxial transmission line structures, coaxial resonators, and cylindrical resonators are described. Oven designs are provided to achieve more suitable oven size for fixed operating frequencies. Apparatuses for impedance matching an oven to a microwave source are described. Finally, designs providing for rapid column cool down and improved control of the column thermal environment are described.
摘要翻译：微波加热装置用于加热含有微波吸收材料的色谱柱组件。微波加热装置包括发射微波信号的天线和包含色谱柱组件的谐振腔。色谱柱组件相对于谐振腔内的预定电磁场强度轮廓延伸，以沿着色谱柱组件的长度提供预定的加热曲线。例如，单模式色谱柱微波炉可用于将卷曲色谱柱加热至其长度所需的温度梯度。描述了利用同轴传输线结构，同轴谐振器和圆柱形谐振器的烘箱设计实施例。提供烤箱设计，以实现固定工作频率的更适合的烤箱尺寸。描述了将烘箱与微波源进行阻抗匹配的装置。最后，描述了提供快速柱冷却和改进柱热环境控制的设计。

9. 发明申请

US20010000403A1 Microwave heating apparatus for gas chromatographic columns 失效
公开(公告)号：US20010000403A1
公开(公告)日：2001-04-26
申请号：US09729134
申请日：2000-12-01
发明人： Gregory Scott Gaisford , David L. Walters
IPC分类号： H05B006/80 , H05B006/72 , G01N030/02
CPC分类号： H05B6/70 , G01N30/30 , G01N2030/025 , G01N2030/3015 , G01N2030/3038 , G01N2030/3046 , H05B6/6402 , H05B6/705 , H05B6/80
摘要： A microwave heating apparatus is used for heating a chromatographic column assembly containing a microwave absorbing material. The microwave heating apparatus includes an antenna transmitting a microwave signal and a resonant cavity containing the chromatographic column assembly. The chromatographic column assembly extends relative to predetermined electromagnetic field strength contours within the resonant cavity to provide a predetermined heating profile along the length of the chromatographic column assembly. For example, a single-mode chromatographic column microwave oven can be used to heat a coiled chromatography column to a desired temperature gradient along its length. Oven design embodiments utilizing coaxial transmission line structures, coaxial resonators, and cylindrical resonators are described. Oven designs are provided to achieve more suitable oven size for fixed operating frequencies. Apparatuses for impedance matching an oven to a microwave source are described. Finally, designs providing for rapid column cool down and improved control of the column thermal environment are described.

10. 发明授权

US06157015A Microwave heating apparatus for gas chromatographic columns 有权
公开(公告)号：US06157015A
公开(公告)日：2000-12-05
申请号：US359879
申请日：1999-07-23
申请人： Scott Gaisford , David L. Walters
发明人： Scott Gaisford , David L. Walters
IPC分类号： G01N30/02 , G01N30/30 , H05B6/72 , H05B6/74 , H05B6/80
CPC分类号： H05B6/6402 , G01N30/30 , H05B6/70 , H05B6/705 , H05B6/80 , G01N2030/025 , G01N2030/3015 , G01N2030/3038 , G01N2030/3046
摘要： A microwave heating apparatus is used for heating a chromatographic column assembly containing a microwave absorbing material. The microwave heating apparatus includes an antenna transmitting a microwave signal and a resonant cavity containing the chromatographic column assembly and the antenna. The chromatographic column assembly extends relative to predetermined electromagnetic field strength contours within the resonant cavity to provide a predetermined heating profile along the length of the chromatographic column assembly. For example, a single-mode chromatographic column microwave oven can be used to heat a coiled chromatography column to a desired temperature gradient along its length. Oven design embodiments utilizing coaxial transmission line structures, coaxial resonators, and cylindrical resonators are described. To control the electromagnetic field gradient in the axial direction, the oven designs provide for varying some part of the oven geometry in the axial direction. For best operation, vacuum conditions should be established within the oven during heating cycles.

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