公开(公告)号：US5954954A

公开(公告)日：1999-09-21

申请号：US879336

申请日：1997-06-20

申请人： Raymond K. Houck ,  Douglas J. Koebler ,  Glen P. Williams ,  Joseph M. Levy ,  Victor G. Danielson

发明人： Raymond K. Houck ,  Douglas J. Koebler ,  Glen P. Williams ,  Joseph M. Levy ,  Victor G. Danielson

IPC分类号： B01D11/02 ,  B01D15/08 ,  G01N1/34 ,  G01N1/40 ,  G01N30/06 ,  G01N33/24

CPC分类号： G01N1/34 ,  B01D11/0203 ,  G01N2001/4061 ,  G01N2030/062 ,  G01N33/24

摘要： The present invention pertains to an apparatus for gathering analyte. The apparatus comprises a pumping mechanism for pumping solvent at supercritical pressure. The apparatus also comprises an extraction mechanism which receives a first sample and at least a second sample separate and distinct from the first sample and extract analyte from them essentially simultaneously. The extraction mechanism is connected to the pump mechanism to receive solvent at supercritical pressure for extracting the analyte from the samples. The apparatus additionally comprises a collection mechanism for collecting analyte from the solvent after the analyte has been extracted from the samples. The collection mechanism receives the supercritical solvent having the analyte extracted from the samples from the extraction mechanism. The present invention pertains to a method for extracting analyte. The method comprises the steps of pumping solvent at a supercritical pressure. Then there is the step of extracting analyte from N samples essentially simultaneously with the solvent at a supercritical pressure, where N is greater than or equal to two and is an integer. The N samples are separate and distinct from each other. Then there is the step of collecting the analyte of the N samples from the solvent.

摘要翻译： 本发明涉及用于收集分析物的装置。 该装置包括用于在超临界压力下泵送溶剂的泵送机构。 该装置还包括提取机构，其接收第一样品和至少第二样品，其与第一样品分离并且不同，并且基本上同时从其中提取分析物。 提取机构连接到泵机构以在超临界压力下接收溶剂以从样品中提取分析物。 该装置另外包括用于在从样品中提取分析物之后从溶剂收集分析物的收集机构。 收集机构接收来自提取机构的样品提取的分析物的超临界溶剂。 本发明涉及提取分析物的方法。 该方法包括以超临界压力泵送溶剂的步骤。 然后，在超临界压力下，基本上与溶剂同时从N个样品中提取分析物，其中N大于或等于2，并且为整数。 N个样本是分开的并且彼此不同。 然后是从溶剂中收集N个样品的分析物的步骤。

公开(公告)号：US5372716A

公开(公告)日：1994-12-13

申请号：US929727

申请日：1992-08-13

申请人： Joseph M. Levy ,  Raymond K. Houck

发明人： Joseph M. Levy ,  Raymond K. Houck

IPC分类号： B01D11/02 ,  G01N1/34 ,  G01N7/04 ,  G01N30/02 ,  G01N30/06 ,  B01D15/08

CPC分类号： B01D11/0203 ,  G01N7/04 ,  G01N2001/4061 ,  G01N2030/025 ,  G01N2030/062 ,  G01N30/02

摘要： The present invention is a collection system for use with supercritical fluid extraction. The system comprises a device for collecting analyte from a fluid having the same. There is also a restrictor for controlling flow of analyte to the collecting device. The restrictor converts the fluid with analyte from a first pressure to a second pressure. The second pressure is less than the first pressure. The first pressure is a supercritical pressure. The restrictor is in fluidic communication with the collecting device. There is also a device for deabsorbing the analyte from the collecting device. The deabsorbing device is in fluidic communication with the collecting device. The collection system also includes a chromatograph for analyzing the analyte. The chromatograph is in fluidic communication with the collecting device to receive deabsorbed analyte. The chromatograph is remote from the collecting device. The chromatograph can be either a gas chromatograph or a liquid chromatograph. In one embodiment of the collection system, the deabsorbing device backflushes deabsorbing fluid through the collecting device into the chromatograph. That is, the flow of fluid during deabsorbing is in an opposite direction to the flow of fluid during collection. Alternatively, the deabsorbing device foreflushes the deabsorbing fluid through the collecting device into the chromatograph. That is, the flow of fluid during deabsorbing is the same direction as the flow of fluid during collection.

摘要翻译： 本发明是用于超临界流体萃取的收集系统。 该系统包括用于从具有该分析物的流体收集分析物的装置。 还存在用于控制分析物流向收集装置的限制器。 限流器将具有分析物的流体从第一压力转换为第二压力。 第二压力小于第一压力。 第一个压力是超临界压力。 限流器与收集装置流体连通。 还有一种用于从收集装置中吸收分析物的装置。 脱吸装置与收集装置流体连通。 收集系统还包括用于分析分析物的色谱仪。 色谱仪与收集装置流体连通，以接收去吸收的分析物。 色谱仪远离收集装置。 色谱仪可以是气相色谱仪或液相色谱仪。 在收集系统的一个实施例中，脱吸装置将吸收流体通过收集装置反冲洗成色谱仪。 也就是说，在吸收期间流体的流动与收集期间的流体流相反。 或者，脱吸装置通过收集装置将去吸收流体前驱到色谱仪中。 也就是说，吸收时的流体流动与收集期间的流体流动方向相同。

公开(公告)号：US5750029A

公开(公告)日：1998-05-12

申请号：US388274

申请日：1995-02-13

申请人： Raymond K. Houck ,  Douglas J. Koebler ,  Glen P. Williams ,  Joseph M. Levy ,  Victor G. Danielson

发明人： Raymond K. Houck ,  Douglas J. Koebler ,  Glen P. Williams ,  Joseph M. Levy ,  Victor G. Danielson

IPC分类号： B01D11/02 ,  B01D15/08 ,  G01N1/34 ,  G01N1/40 ,  G01N30/06 ,  G01N33/24 ,  B01D11/00

CPC分类号： G01N1/34 ,  B01D11/0203 ,  G01N2001/4061 ,  G01N2030/062 ,  G01N33/24

摘要： The present invention pertains to an apparatus for gathering analyte. The apparatus comprises a pumping mechanism for pumping solvent at supercritical pressure. The apparatus also comprises an extraction mechanism which receives a first sample and at least a second sample separate and distinct from the first sample and extract analyte from them essentially simultaneously. The extraction mechanism is connected to the pump mechanism to receive solvent at supercritical pressure for extracting the analyte from the samples. The apparatus additionally comprises a collection mechanism for collecting analyte from the solvent after the analyte has been extracted from the samples. The collection mechanism receives the supercritical solvent having the analyte extracted from the samples from the extraction mechanism. The present invention pertains to a method for extracting analyte. The method comprises the steps of pumping solvent at a supercritical pressure. Then there is the step of extracting analyte from N samples essentially simultaneously with the solvent at a supercritical pressure, where N is greater than or equal to two and is an integer. The N samples are separate and distinct from each other. Then there is the step of collecting the analyte of the N samples from the solvent.

公开(公告)号：US5458783A

公开(公告)日：1995-10-17

申请号：US354238

申请日：1994-12-12

申请人： Joseph M. Levy ,  Raymond K. Houck

发明人： Joseph M. Levy ,  Raymond K. Houck

IPC分类号： G01N30/02 ,  G01N30/06 ,  G01N30/12 ,  G01N30/28 ,  G01N30/60 ,  B01D15/08

CPC分类号： G01N30/28 ,  G01N2030/025 ,  G01N2030/062 ,  G01N2030/122 ,  G01N2030/6008 ,  G01N30/02

摘要： The present invention is a collection system for use with supercritical fluid extraction. The system comprises a device for collecting analyte from a fluid having the same. There is also a restrictor for controlling flow of analyte to the collecting device. The restrictor converts the fluid with analyte from a first pressure to a second pressure. The second pressure is less than the first pressure. The first pressure is a supercritical pressure. The restrictor is in fluidic communication with the collecting device. There is also a device for deabsorbing the analyte from the collecting device. The deabsorbing device is in fluidic communication with the collecting device. The collection system also includes a chromatograph for analyzing the analyte. The chromatograph is in fluidic communication with the collecting device to receive deabsorbed analyte. The chromatograph is remote from the collecting device. The chromatograph can be either a gas chromatograph or a liquid chromatograph. In one embodiment of the collection system, the deabsorbing device backflushes deabsorbing fluid through the collecting device into the chromatograph. That is, the flow of fluid during deabsorbing is in an opposite direction to the flow of fluid during collection. Alternatively, the deabsorbing device foreflushes the deabsorbing fluid through the collecting device into the chromatograph. That is, the flow of fluid during deabsorbing is the same direction as the flow of fluid during collection.

摘要翻译： 本发明是用于超临界流体萃取的收集系统。 该系统包括用于从具有该分析物的流体收集分析物的装置。 还存在用于控制分析物流向收集装置的限制器。 限流器将具有分析物的流体从第一压力转换为第二压力。 第二压力小于第一压力。 第一个压力是超临界压力。 限流器与收集装置流体连通。 还有一种用于从收集装置中吸收分析物的装置。 脱吸装置与收集装置流体连通。 收集系统还包括用于分析分析物的色谱仪。 色谱仪与收集装置流体连通，以接收去吸收的分析物。 色谱仪远离收集装置。 色谱仪可以是气相色谱仪或液相色谱仪。 在收集系统的一个实施例中，脱吸装置将吸收流体通过收集装置反冲洗成色谱仪。 也就是说，在吸收期间流体的流动与收集期间的流体流相反。 或者，脱吸装置通过收集装置将去吸收流体前驱到色谱仪中。 也就是说，吸收时的流体流动与收集期间的流体流动方向相同。