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公开(公告)号：US6005657A
公开(公告)日：1999-12-21
申请号：US260814
申请日：1999-03-02
申请人： Gerald T. Reedy
发明人： Gerald T. Reedy
CPC分类号： F16C33/10 , F16C31/02 , F16C33/04 , F16C33/1095 , F16C33/12 , G01N1/42 , G01N30/84 , F16C2204/04 , F16C2300/52 , F16C2370/00 , G01N2030/8417
摘要： Apparatus for spectroscopic analysis of chemical compounds in samples released from a gas chromatograph is configured for placing the samples in matrix isolation for exposure to a beam of light generated from a spectrometer. The apparatus includes a vacuum chamber, housing a generally cylindrical, axially rotating sample disk having an axle and a mirrored surface, which is provided for receiving the samples from the gas chromatograph. A support block supports the rotating disk within the vacuum chamber. Also included in the apparatus is a cooling device which is in contact with the support block for cryogenically cooling the mirrored surface. Further, the disk is configured such that it rotates relative to the stationary cooling device. Also featured is a sample deposition apparatus which displaces a sample deposition nozzle to avoid contamination of the mirrored surface, and positions the deposition nozzle relative to the sample disk to obtain real time sample analysis.
摘要翻译： 用于从气相色谱仪释放的样品中化学化合物的光谱分析的装置被配置为将样品置于基质隔离中，以暴露于从光谱仪产生的光束。 该设备包括真空室，其容纳大体上圆柱形的轴向旋转的具有轴和镜面的样品盘，其被提供用于从气相色谱仪接收样品。 支撑块支撑真空室内的旋转盘。 装置中还包括与支撑块接触的冷却装置，用于对镜面进行低温冷却。 此外，盘构造成使得其相对于固定式冷却装置旋转。 还有一种样品沉积装置，其移动样品沉积喷嘴以避免污染反射表面，并将沉积喷嘴相对于样品盘定位以获得实时样品分析。
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公开(公告)号：US4158772A
公开(公告)日：1979-06-19
申请号：US902185
申请日：1978-05-02
申请人： Gerald T. Reedy
发明人： Gerald T. Reedy
CPC分类号： G01N21/3504
摘要： A gas-sample collection device is disclosed for matrix isolation of individual gas bands from a gas chromatographic separation and for presenting these distinct samples for spectrometric examination. The device includes a vacuum chamber containing a rotatably supported, specular carrousel having a number of external, reflecting surfaces around its axis of rotation for holding samples. A gas inlet is provided for depositing sample and matrix material on the individual reflecting surfaces maintained at a sufficiently low temperature to cause solidification. Two optical windows or lenses are installed in the vacuum chamber walls for transmitting a beam of electromagnetic radiation, for instance infrared light, through a selected sample. Positioned within the chamber are two concave mirrors, the first aligned to receive the light beam from one of the lenses and focus it to the sample on one of the reflecting surfaces of the carrousel. The second mirror is aligned to receive reflected light from that carrousel surface and to focus it outwardly through the second lens. The light beam transmitted from the sample is received by a spectrometer for determining absorption spectra.
摘要翻译： 公开了一种气体样品收集装置，用于从气相色谱分离中单独的气体带进行基质分离，并提供这些不同的样品进行光谱测定。 该装置包括一个包含可转动支撑的镜面转盘的真空室，其具有围绕其旋转轴线的多个外部反射表面，用于保持样品。 提供气体入口用于在保持在足够低的温度下的各个反射表面上沉积样品和基质材料以引起固化。 两个光学窗口或透镜安装在真空室壁中，用于通过选定的样品传送电磁辐射束，例如红外光。 定位在腔室内的是两个凹面镜，第一对准以接收来自透镜之一的光束并将其聚焦到转盘的一个反射表面上的样品。 对准第二个反射镜以接收来自该转盘表面的反射光并将其向外聚焦通过第二透镜。 从样品发射的光束由用于确定吸收光谱的光谱仪接收。
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3.发明授权
公开(公告)号：US5903344A
公开(公告)日：1999-05-11
申请号：US807959
申请日：1997-02-28
申请人： Gerald T. Reedy
发明人： Gerald T. Reedy
CPC分类号： F16C33/10 , F16C31/02 , F16C33/04 , F16C33/1095 , F16C33/12 , G01N1/42 , G01N30/84 , F16C2204/04 , F16C2300/52 , F16C2370/00 , G01N2030/8417
摘要： Apparatus for spectroscopic analysis of chemical compounds in samples released from a gas chromatograph is configured for placing the samples in matrix isolation for exposure to a beam of light generated from a spectrometer. The apparatus includes a vacuum chamber, housing a generally cylindrical, axially rotating sample disk having an axle and a mirrored surface, which is provided for receiving the samples from the gas chromatograph. A support block supports the rotating disk within the vacuum chamber. Also included in the apparatus is a cooling device which is in contact with the support block for cryogenically cooling the mirrored surface. Further, the disk is configured such that it rotates relative to the stationary cooling device. Also featured is a sample deposition apparatus which displaces a sample deposition nozzle to avoid contamination of the mirrored surface, and positions the deposition nozzle relative to the sample disk to obtain real time sample analysis.
摘要翻译： 用于从气相色谱仪释放的样品中化学化合物的光谱分析的装置被配置为将样品置于基质隔离中，以暴露于从光谱仪产生的光束。 该设备包括真空室，其容纳大体上圆柱形的轴向旋转的具有轴和镜面的样品盘，其被提供用于从气相色谱仪接收样品。 支撑块支撑真空室内的旋转盘。 装置中还包括与支撑块接触的冷却装置，用于对镜面进行低温冷却。 此外，盘构造成使得其相对于固定式冷却装置旋转。 还有一种样品沉积装置，其移动样品沉积喷嘴以避免污染反射表面，并将沉积喷嘴相对于样品盘定位以获得实时样品分析。
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公开(公告)号：US4688936A
公开(公告)日：1987-08-25
申请号：US707156
申请日：1985-03-01
申请人： Gerald T. Reedy
发明人： Gerald T. Reedy
CPC分类号： G01N21/35 , G01N30/74 , G01N2030/8417
摘要： A gas-sample collection device provides for the matrix isolation of increased amounts of a sample material for spectrographic analysis from a gas chromatographic separation. The device includes an evacuated sample collection chamber containing a disc-like specular carousel having a generally circular lateral surface upon which the sample is deposited in an inert gas matrix for infrared (IR) spectral analysis. The evacuated sample chamber is mounted in a fixed manner and is coupled to and supports a rotating cryostatic coupler which, in turn, supports the specular carousel within the collection chamber. A rotational drive system connected to the cryostatic coupler provides for its rotational displacement as well as that of the sample collecting carousel. In addition, rotation of the cryostatic coupler effects vertical displacement of the carousel to permit the collection of an extended sample band in a helical configuration on the entire lateral surface of the carousel. The various components of the carousel's angular/linear displacement drive system are located exterior to the cryostatic coupler for easy access and improved operation. The cryostatic coupler includes a 360.degree. rotary union assembly for permitting the delivery of a high pressure working fluid to the cryostatic coupler in a continuous flow manner for maintaining the specular carousel at a low temperature, e.g., 10.degree.-20.degree. K., for improved uninterrupted gas sample collection and analysis.
摘要翻译： 气体样品收集装置提供用于从气相色谱分离进行光谱分析的增加量的样品材料的基质分离。 该装置包括抽空的样品收集室，其包含具有大致圆形侧表面的盘状镜面转盘，样品沉积在用于红外（IR）光谱分析的惰性气体基质中。 抽真空的样品室以固定的方式安装并且联接到并支撑旋转的低温恒定耦合器，该耦合器又在收集室内支撑镜面转盘。 连接到低温恒温耦合器的旋转驱动系统提供其旋转位移以及样品收集转盘的旋转位移。 此外，低温恒温耦合器的旋转影响圆盘传送带的垂直位移，以允许在圆盘传送带的整个侧表面上以螺旋形结构收集延伸的样品带。 圆盘传送带的角/线性位移驱动系统的各个部件位于低温耦合器的外部，便于操作和改进操作。 低温恒温耦合器包括360°旋转接头组件，用于允许以连续流动的方式将高压工作流体输送到低温恒温耦合器，以将镜面转盘保持在低温（例如10°-20°K），用于 改进不间断的气体样品收集和分析。
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公开(公告)号：US4594226A
公开(公告)日：1986-06-10
申请号：US583042
申请日：1984-02-23
申请人： Gerald T. Reedy
发明人： Gerald T. Reedy
CPC分类号： G01N21/3504 , G01N30/74 , G01N2030/8417 , G01N21/8422
摘要： A gas-sample collection device provides matrix isolation of individual gas bands from a gas chromatographic separation and for the spectroscopic analysis of the individual sample bands. The device includes a vacuum chamber containing a rotatably supported, specular carousel having at least one reflecting surface for holding a sample deposited thereon. A gas inlet is provided for depositing a mixture of sample and matrix material on the reflecting surface which is maintained at a sufficiently low temperature to cause solidification. A first parabolic mirror directs an incident beam of electromagnetic radiation, such as in the infrared (IR) spectrum, from a source onto the sample/matrix mixture while a second parabolic mirror directs a second beam of electromagnetic radiation reflected by the specular surface to an IR spectrometer for determining the absorption spectra of the sample material deposited on the reflecting surface. The pair of off-axis parabolic mirrors having a common focal point are positioned outside of the vacuum chamber and may be displaced in combination for improved beam positioning and alignment. The carousel is provided with an aperture for each reflecting surface to facilitate accurate positioning of the incident beam relative to the gas-samples under analysis. Improved gas-sample deposition is insured by the use of a long focal length stereomicroscope positioned outside of the vacuum chamber for monitoring sample formation through a window, while the sample collector is positioned outside of the zone bounded by the incident and reflected electromagnetic beams for improved sample access and monitoring.
摘要翻译： 气体样品收集装置提供了气体色谱分离中各个气体带的基质分离和各个样品带的光谱分析。 该装置包括一个包含可旋转支撑的镜面圆盘传送带的真空室，该转盘具有至少一个用于保持沉积在其上的样品的反射表面。 提供气体入口，用于将样品和基质材料的混合物沉积在反射表面上，该反射表面保持在足够低的温度下以引起固化。 第一抛物面反射镜将诸如红外（IR）光谱中的电磁辐射的入射光束从源引导到样品/基质混合物上，而第二抛物面反射镜将由镜面反射的第二电磁辐射束引导到 用于确定沉积在反射表面上的样品材料的吸收光谱的IR光谱仪。 具有共同焦点的一对离轴抛物面镜位于真空室的外部，并且可以组合地移位以改善光束定位和对准。 旋转盘设置有用于每个反射表面的孔，以促进入射光束相对于分析下的气体样品的准确定位。 通过使用位于真空室外部的长焦距立体显微镜来保证改进的气体样品沉积，用于通过窗口监测样品形成，而样品收集器位于由入射和反射的电磁波束限定的区域的外部，以改进 样本访问和监控。
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公开(公告)号：US4942297A
公开(公告)日：1990-07-17
申请号：US273395
申请日：1988-11-18
CPC分类号： G01N15/0612 , G01N15/02 , G01N15/0625 , G01N21/552 , G01N2015/0046 , G01N2015/0261
摘要： Apparatus for analyzing aerosols in essentially real time includes a virtual impactor which separates coarse particles from fine and ultrafine particles in an aerosol sample. The coarse and ultrafine particles are captured in PTFE filters, and the fine particles impact onto an internal light reflection element. The composition and quantity of the particles on the PTFE filter and on the internal reflection element are measured by alternately passing infrared light through the filter and the internal light reflection element, and analyzing the light through infrared spectrophotometry to identify the particles in the sample.
摘要翻译： 用于基本上实时分析气溶胶的装置包括将粗颗粒与气溶胶样品中的细微粒子和超细颗粒分离的虚拟冲击器。 粗粉和超细颗粒被捕获在PTFE过滤器中，细颗粒撞击内部光反射元件。 通过将红外光交替地通过过滤器和内部光反射元件来测量PTFE过滤器和内部反射元件上的颗粒的组成和数量，并通过红外分光光度法分析光以鉴定样品中的颗粒。
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