专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

81. 发明授权

US5720798A Micromachined analyte trap for gas phase streams 失效
标题翻译：用于气相流的微加工分析物阱
公开(公告)号：US5720798A
公开(公告)日：1998-02-24
申请号：US641248
申请日：1996-04-30
申请人： Mark A. Nickerson , W. Dale Snyder
发明人： Mark A. Nickerson , W. Dale Snyder
IPC分类号： G01N30/02 , G01N30/12 , G01N30/60 , B01D15/08 , B01D53/04
CPC分类号： G01N30/12 , G01N2030/025 , G01N2030/122 , G01N30/6095
摘要： A method and apparatus for non-liquid solvent introduction of analyte into an analytical instrument and, more particularly, to a bonded liquid phase analyte trap with integral flow switching that may include a rapid solid-state heating and cooling device. The analyte trap includes a first wafer having a flow channel formed on its bottom side such that a second wafer attached to the bottom side of the first wafer encloses the flow channel and a stationary phase coating is chemically bonded to the walls of the flow channel to provide a mechanism for trapping analytes of interest.
摘要翻译：一种用于非分析溶剂将分析物引入分析仪器的方法和装置，更具体地说，涉及具有可包括快速固态加热和冷却装置的积分流量切换的粘合液相分析物阱。分析物陷阱包括第一晶片，其具有在其底侧形成的流动通道，使得附接到第一晶片的底侧的第二晶片包围流动通道，并且固定相涂层化学键合到流动通道的壁，以提供捕获感兴趣的分析物的机制。

82. 发明授权

US5547497A Apparatus for gas chromatography 失效
标题翻译：气相色谱仪
公开(公告)号：US5547497A
公开(公告)日：1996-08-20
申请号：US174129
申请日：1993-12-28
申请人： Mark A. Klemp , Anita J. Peters
发明人： Mark A. Klemp , Anita J. Peters
IPC分类号： G01N30/08 , G01N30/02 , G01N30/12 , G01N30/30 , G01N30/32 , G01N30/38 , G01N30/40 , G01N30/62 , B01D15/08
CPC分类号： G01N30/12 , G01N30/40 , G01N2030/025 , G01N2030/122 , G01N2030/123 , G01N2030/128 , G01N2030/3046 , G01N2030/383 , G01N2030/623
摘要： A gas chromatograph system including a cold trap having two portions, a capillary tube and a porous layer open tubular (PLOT) column, for substantially simultaneously trapping lower and higher boiling point gasses. The capillary tube enables cold trapping of lower boiling point gasses while the PLOT column enables cold trapping of higher boiling point gasses. The capillary tube interconnects at one end to an analytical column and a sample gas source and interconnects at its other end to a first end of the PLOT column. The other end of the PLOT column interconnects to a carrier gas source and a vacuum source. The capillary tube and PLOT column are both positioned within a temperature controlled environment of the cold trap. During the collection mode, the temperature control device maintains a relatively low temperature to condense the sample components. During injection of the sample from the cold trap to the analytical column, the temperature control device maintains a relatively high temperature to vaporize the sample components.
摘要翻译：一种包括具有两部分的冷阱的气相色谱系统，毛细管和多孔层开放管（PLOT）柱，用于基本上同时捕获较低沸点和较高沸点的气体。毛细管能够冷藏低沸点气体，而PLOT柱能够冷却高沸点气体。毛细管一端连接到分析柱和样品气体源，并在其另一端互连到PLOT柱的第一端。 PLOT柱的另一端与载气源和真空源相互连接。毛细管和PLOT柱均位于冷阱的温度控制环境内。在收集模式期间，温度控制装置维持相对较低的温度以冷凝样品组分。在将样品从冷阱注入分析柱期间，温度控制装置维持相对高的温度以蒸发样品组分。

83. 发明授权

US5281256A Gas chromatography system with column bifurcation and tunable selectivity 失效
标题翻译：具有柱分叉和可调选择性的气相色谱系统
公开(公告)号：US5281256A
公开(公告)日：1994-01-25
申请号：US975289
申请日：1992-11-12
申请人： Richard D. Sacks , Michael L. Akard
发明人： Richard D. Sacks , Michael L. Akard
IPC分类号： G01N30/26 , G01N1/00 , G01N1/22 , G01N1/26 , G01N30/02 , G01N30/12 , G01N30/20 , G01N30/24 , G01N30/30 , G01N30/32 , G01N30/38 , G01N30/40 , G01N30/46 , G01N30/62 , G01N30/68 , G01N30/78 , G01N30/86 , B01D15/08
CPC分类号： G01N30/468 , G01N1/26 , G01N30/12 , G01N30/20 , G01N30/38 , G01N30/40 , G01N1/2214 , G01N2030/025 , G01N2030/121 , G01N2030/122 , G01N2030/201 , G01N2030/202 , G01N2030/204 , G01N2030/3046 , G01N2030/383 , G01N2030/385 , G01N2030/402 , G01N2030/405 , G01N2030/407 , G01N2030/623 , G01N2030/628 , G01N30/24 , G01N30/32 , G01N30/461 , G01N30/466 , G01N30/68 , G01N30/78 , G01N30/8651 , G01N35/1097
摘要： A gas chromatography system featuring column bifurcation and pressure tuning. The system of this invention incorporates a bifurcated system in which samples eluting from a first separation column are directed selectively through one of two or more additional separation columns. Flow directing is achieved through the use of valves which switch carrier gas which are outside of the path of the analyte mixture. Effective tuning of the system is provided by adjusting the intermediate pressure which controls the effective lengths of the initial separation column and the additional final separation columns.
摘要翻译：具有柱分岔和压力调节的气相色谱系统。本发明的系统包含分叉系统，其中从第一分离柱洗脱的样品选择性地通过两个或更多个附加分离柱之一。通过使用在分析物混合物的路径之外切换载气的阀来实现流动引导。通过调节控制初始分离柱和附加最终分离柱的有效长度的中间压力来提供系统的有效调节。

84. 发明授权

US5123274A Hand-held sample gun for vapor collection 失效
标题翻译：用于蒸气收集的手持取样枪
公开(公告)号：US5123274A
公开(公告)日：1992-06-23
申请号：US81915
申请日：1987-07-08
申请人： Alf L. Carroll , Gabor Miskolczy , Freeman W. Fraim , Eugene K. Achter , David P. Lieb
发明人： Alf L. Carroll , Gabor Miskolczy , Freeman W. Fraim , Eugene K. Achter , David P. Lieb
IPC分类号： G01N1/00 , G01N1/02 , G01N1/22 , G01N1/28 , G01N1/40 , G01N21/76 , G01N27/417 , G01N30/02 , G01N30/06 , G01N30/08 , G01N30/12 , G01N30/14 , G01N30/16 , G01N30/30 , G01N30/40 , G01N30/46 , G01N30/62 , G01N30/64 , G01N30/72 , G01N30/84 , G01N31/12 , G01N33/00 , G01N33/22 , G01V9/00
CPC分类号： G01N30/461 , G01N1/02 , G01N30/08 , G01N30/12 , G01N30/84 , G01N33/0057 , G01V9/007 , G01N1/2214 , G01N1/2226 , G01N1/28 , G01N1/40 , G01N2001/022 , G01N2001/028 , G01N2030/025 , G01N2030/065 , G01N2030/085 , G01N2030/121 , G01N2030/122 , G01N2030/123 , G01N2030/125 , G01N2030/126 , G01N2030/143 , G01N2030/167 , G01N2030/3007 , G01N2030/3046 , G01N2030/3053 , G01N2030/3061 , G01N2030/3069 , G01N2030/3076 , G01N2030/3084 , G01N2030/626 , G01N2030/642 , G01N2030/8405 , G01N21/76 , G01N30/14 , G01N30/40 , G01N30/62 , G01N30/72
摘要： A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample gun, are collected on surface coated with gas chromatograph (GC) material which trap explosives vapors but repel nitric oxide, then are desorbed and concentrated in one or more cold spot concentrators. A high speed gas chromatograph (GC) separates the vapors, after which specific vapors are decomposed in two pyrolyzers arranged in parallel and the resulting nitric oxide is detected. A low temperature pyrolyzer with silver produces NO from nitramines or nitrite esters; a high temperature pyrolyzer decomposes all explosives vapors to permit detection of the remaining explosives. Also disclosed is a series arrangement of pyroloyzers and gas chromatographs and an NO detector to time-shift detection of certain vapors and facilitate very fast GC analyses. The use of hydrogen as a carrier gas, plus unique collectors and concentrators, high speed heaters, NO detectors, and very fast, temperature-programmable GC's enhance selectivity, sensitivity and speed of detection.
摘要翻译：公开了一种高选择性，灵敏，快速的检测系统和方法，用于检测空气中特定化合物的蒸气。从化学品如爆炸物或从手持式样品枪吸取热量从表面剥离的蒸气在被气相色谱（GC）材料涂覆的表面上收集，该气相色谱（GC）材料捕获爆炸物蒸气但排斥一氧化氮，然后被解吸和浓缩在一个或多个冷点浓缩器中。高速气相色谱仪（GC）分离蒸汽，之后特定的蒸汽在平行排列的两个热解器中分解，并检测到所产生的一氧化氮。含有银的低温热解器由硝胺或亚硝酸酯产生NO; 高温热解器分解所有炸药蒸气，以便检测剩余的炸药。还公开了热解器和气相色谱仪的串联布置，以及用于某些蒸气的时移检测的NO检测器，并促进非常快速的GC分析。使用氢气作为载气，加上独特的收集器和浓缩器，高速加热器，NO检测器和非常快速的温度可编程GC增强了选择性，灵敏度和检测速度。

85. 发明授权

US5092219A Selective decomposition of nitrite esters and nitramines 失效
标题翻译：亚硝酸酯和硝胺的选择性分解
公开(公告)号：US5092219A
公开(公告)日：1992-03-03
申请号：US81967
申请日：1987-07-08
申请人： David P. Rounbehler , David H. Fine
发明人： David P. Rounbehler , David H. Fine
IPC分类号： G01N1/00 , G01N1/02 , G01N1/22 , G01N1/28 , G01N1/40 , G01N21/76 , G01N27/417 , G01N30/02 , G01N30/06 , G01N30/08 , G01N30/12 , G01N30/14 , G01N30/16 , G01N30/30 , G01N30/40 , G01N30/46 , G01N30/62 , G01N30/64 , G01N30/72 , G01N30/84 , G01N31/12 , G01N33/00 , G01N33/22 , G01V9/00
CPC分类号： G01N30/461 , G01N1/02 , G01N30/08 , G01N30/12 , G01N30/84 , G01N33/0057 , G01V9/007 , G01N1/2214 , G01N1/2226 , G01N1/28 , G01N1/40 , G01N2001/022 , G01N2001/028 , G01N2030/025 , G01N2030/065 , G01N2030/085 , G01N2030/121 , G01N2030/122 , G01N2030/123 , G01N2030/125 , G01N2030/126 , G01N2030/143 , G01N2030/167 , G01N2030/3007 , G01N2030/3046 , G01N2030/3053 , G01N2030/3061 , G01N2030/3069 , G01N2030/3076 , G01N2030/3084 , G01N2030/626 , G01N2030/642 , G01N2030/8405 , G01N21/76 , G01N30/14 , G01N30/40 , G01N30/62 , G01N30/72
摘要： A highly selective, sensitive, fast detection system and method are disclosed for detecting vapors of specific compounds in air. Vapors emanating from compounds such as explosives, or stripped from surfaces using heat and suction from a hand-held sample gun, are collected on surfaces coated with gas chromatograph (GC) material which trap explosives vapors but repel nitric oxide, then are desorbed and concentrated in one or more cold spot concentrators. A high speed gas chromatograph (GC) separates the vapors, after which specific vapors are decomposed in two pyrolyzers arranged in parallel and the resulting nitric oxide is detected. A low temperature pyrolyzer with silver produces NO from nitramines or nitrite esters; a high temperature pyrolyzer decomposes all explosives vapors to permit detetion of the remaining explosives. Also disclosed is a series arrangement of pyrolyzers and gas chromatographs and an NO detector to time-shift detection of certain vapors and facilitate very fast GC analyses. The use of hydrogen as a carrier gas, plus unique collectors and concentrators, high speed heaters, NO detectors, and very fast, temperature-programmable GC's enhance selectivity, sensitivity and speed of detection.
摘要翻译：公开了一种高选择性，灵敏，快速的检测系统和方法，用于检测空气中特定化合物的蒸气。从化合物如爆炸物或从手持式样品枪吸取热量从表面剥离的蒸气被收集在涂有气相色谱（GC）材料的表面上，该气相色谱（GC）材料捕获爆炸物蒸气但排斥一氧化氮，然后被解吸和浓缩在一个或多个冷点浓缩器中。高速气相色谱仪（GC）分离蒸汽，之后特定的蒸汽在平行排列的两个热解器中分解，并检测到所产生的一氧化氮。含有银的低温热解器由硝胺或亚硝酸酯产生NO; 高温热解器分解所有爆炸物蒸汽，以允许其他爆炸物的爆破。还公开了热解器和气相色谱仪的串联布置和用于某些蒸气的时移检测的NO检测器，并且促进非常快速的GC分析。使用氢气作为载气，加上独特的收集器和浓缩器，高速加热器，NO检测器和非常快速的温度可编程GC增强了选择性，灵敏度和检测速度。

86. 发明授权

US4383839A Method and device for vaporization injection of a liquid sample for gas chromatographic analysis 失效
标题翻译：用于气相色谱分析的液体样品的蒸发注入方法和装置
公开(公告)号：US4383839A
公开(公告)日：1983-05-17
申请号：US318907
申请日：1981-11-06
申请人： Giorgio Sisti , Mario Galli , Sorin Trestianu
发明人： Giorgio Sisti , Mario Galli , Sorin Trestianu
IPC分类号： G01N30/16 , G01N30/10 , G01N30/12 , G01N30/30 , G01N30/38 , B01D15/08
CPC分类号： G01N30/12 , G01N30/30 , G01N2030/122 , G01N2030/165 , G01N2030/167 , G01N2030/3046 , G01N2030/383 , G01N30/10
摘要： This invention relates to a method and a device for vaporization injection of a liquid sample in a gas chromatographic column housed in an oven comprising a direct on column injector suitable for injecting a liquid sample into the initial zone of a capillary column and capable of pneumatically sealing the injection port at the end of injection. Between the injector and the gas chromatographic column itself an uncoated capillary column length is provided in which vaporization of the injected sample occurs using heat from an oven housing said capillary column length, said oven being the same or separate from the oven containing said gas chromatographic column.
摘要翻译：本发明涉及一种用于在容纳在烘箱中的气相色谱柱中蒸发注入液体样品的方法和装置，该烘箱包括直接在柱式喷射器上的适用于将液体样品注入毛细管柱的初始区域并能够气动密封注射端口在注射结束时。在注射器和气相色谱柱本身之间，提供未涂布的毛细管柱长度，其中使用来自容纳所述毛细管柱长度的烘箱的加热器进行喷射样品的蒸发，所述烘箱与包含所述气相色谱柱的烘箱相同或分离。

87. 发明申请

US20160103102A1 TECHNIQUE FOR THERMAL DESORPTION ANALYSES OF THERMO LABILE VOLATILE COMPOUNDS 审中-公开
标题翻译：热变性挥发性化合物的热解析分析技术
公开(公告)号：US20160103102A1
公开(公告)日：2016-04-14
申请号：US14869984
申请日：2015-09-29
申请人： The United States of America, as Represented by the Secretary of Agriculture
发明人： Hans T. Alborn , Steven D. Willms
IPC分类号： G01N30/16
CPC分类号： G01N30/12 , G01N2030/122
摘要： Herein is described an apparatus for adaptation to existing GC/MS systems, utilizing a splitless injector as the desorption oven with a liquid CO2 cooled low thermal mass cryo trap that eliminates the need for flash heating of volatile compounds.
摘要翻译：这里描述了一种用于适应现有GC / MS系统的装置，利用具有液体CO 2冷却的低热质量冷冻阱的解吸炉作为解吸炉，其消除了挥发性化合物的闪蒸加热的需要。

88. 发明授权

US08613216B2 Dynamic thermal focusing of chromatographic separations 失效
标题翻译：色谱分离的动态热聚焦
公开(公告)号：US08613216B2
公开(公告)日：2013-12-24
申请号：US13128611
申请日：2009-11-12
申请人： Ole Vorm
发明人： Ole Vorm
IPC分类号： G01N3/08
CPC分类号： G01N30/08 , G01N30/30 , G01N2030/085 , G01N2030/122 , G01N2030/3015 , G01N2030/303 , G01N2030/3076
摘要： There is provided a method for thermally focusing the elution times of compounds of a liquid chromatography system comprising a pre-column and a separation column as well as to provide a liquid chromatography system, wherein the chromatographic separation of a mixture of substances is optimized.
摘要翻译：提供了一种用于热聚焦包含预柱和分离柱的液相色谱系统的化合物的洗脱时间以及提供液相色谱系统的方法，其中物质混合物的色谱分离被优化。

89. 发明授权

US08431889B2 Method and device for repetitive chemical analysis of a gas flow 有权
标题翻译：气流重复化学分析方法和装置
公开(公告)号：US08431889B2
公开(公告)日：2013-04-30
申请号：US13423738
申请日：2012-03-19
申请人： Ralf Zimmermann , Mohammad Reza Saraji-Bozorgzad , Markus Simon Eschner , Thomas Maximilian Groeger
发明人： Ralf Zimmermann , Mohammad Reza Saraji-Bozorgzad , Markus Simon Eschner , Thomas Maximilian Groeger
IPC分类号： H01J49/04 , H01J47/02
CPC分类号： G01N30/12 , G01N30/462 , G01N30/463 , G01N30/7206 , G01N2030/122 , G01N2030/3046 , G01N2030/3076 , H01J27/24 , H01J49/162
摘要： The present invention relates to a method for repetitive chemical analysis of a gas flow, wherein said gas flow consists of a carrier gas and gaseous chemical compounds, comprising the following method steps: feeding said gas flow to a gas chromatographic separation column by means of a feeding device; collecting at least a part of said gaseous chemical compounds for a defined time period by means of a thermally based collecting device which is coupled to said gas chromatographic separation column and/or said feeding device; releasing said collected gaseous chemical compounds in a temporally focused manner by means of said thermally based collecting device; separating said released gaseous chemical compounds by means of said gas chromatographic separation column; and analyzing said separated gaseous chemical compounds by means of an analyzer. The present invention further relates to a device for performing such a method.
摘要翻译：本发明涉及一种用于气流的重复化学分析的方法，其中所述气流由载气和气态化合物组成，包括以下方法步骤：将所述气流通过气相色谱分离柱喂食装置; 通过耦合到所述气相色谱分离柱和/或所述进料装置的热基收集装置收集至少一部分所述气态化合物一段规定的时间段; 通过所述热基收集装置以时间聚焦的方式释放所述收集的气态化合物; 通过所述气相色谱分离柱分离所述释放的气态化合物; 并通过分析仪分析所述分离的气态化合物。本发明还涉及一种用于执行这种方法的装置。

90. 发明申请

US20120286154A1 METHOD AND DEVICE FOR REPETITIVE CHEMICAL ANALYSIS OF A GAS FLOW 有权
标题翻译：用于气体流动的重复化学分析的方法和装置
公开(公告)号：US20120286154A1
公开(公告)日：2012-11-15
申请号：US13423738
申请日：2012-03-19
申请人： Ralf Zimmermann , Mohammad Reza Saraji-Bozorgzad , Markus Simon Eschner , Thomas Maximilian Groeger
发明人： Ralf Zimmermann , Mohammad Reza Saraji-Bozorgzad , Markus Simon Eschner , Thomas Maximilian Groeger
IPC分类号： H01J49/04
CPC分类号： G01N30/12 , G01N30/462 , G01N30/463 , G01N30/7206 , G01N2030/122 , G01N2030/3046 , G01N2030/3076 , H01J27/24 , H01J49/162
摘要： The present invention relates to a method for repetitive chemical analysis of a gas flow, wherein said gas flow consists of a carrier gas and gaseous chemical compounds, comprising the following method steps: feeding said gas flow to a gas chromatographic separation column by means of a feeding device; collecting at least a part of said gaseous chemical compounds for a defined time period by means of a thermally based collecting device which is coupled to said gas chromatographic separation column and/or said feeding device; releasing said collected gaseous chemical compounds in a temporally focused manner by means of said thermally based collecting device; separating said released gaseous chemical compounds by means of said gas chromatographic separation column; and analyzing said separated gaseous chemical compounds by means of an analyzer. The present invention further relates to a device for performing such a method.
摘要翻译：本发明涉及一种用于气流的重复化学分析的方法，其中所述气流由载气和气态化合物组成，包括以下方法步骤：通过以下步骤将所述气流进料到气相色谱分离塔喂食装置; 通过耦合到所述气相色谱分离柱和/或所述进料装置的热基收集装置收集至少一部分所述气态化合物一段规定的时间; 通过所述热基收集装置以时间聚焦的方式释放所述收集的气态化合物; 通过所述气相色谱分离柱分离所述释放的气态化合物; 并通过分析仪分析所述分离的气态化合物。本发明还涉及一种用于执行这种方法的装置。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式