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    • 5. 发明申请
    • Spectroscopy Method and Apparatus for Detecting Low Concentration Gases
    • 用于检测低浓度气体的光谱法和装置
    • US20080151248A1
    • 2008-06-26
    • US11615617
    • 2006-12-22
    • Barrett E. ColeJames Allen CoxYuandong GuRodney H. Thorland
    • Barrett E. ColeJames Allen CoxYuandong GuRodney H. Thorland
    • G01N21/00
    • G01J3/02G01J3/021G01J3/027G01J3/0286G01J3/42G01N21/15G01N21/39G01N2021/151G01N2021/391
    • The invention is a method and apparatus capable of detecting constituents of a gas at extremely low concentrations comprising providing a medium that is absorbent of at least a first particular gas under a first environmental condition and desorbent of the particular gas under a second environmental condition, exposing the medium to a sample gas for a first period of time under the first environmental condition, during a second period of time after the first period of time, exposing the medium to the second environmental condition to cause the medium to desorb gas into an optical cavity of a cavity ring down spectrometer and introducing electromagnetic radiation into the cavity, during a third period of time after the second period of time, ceasing introduction of the electromagnetic radiation into the cavity and detecting the decay of the electromagnetic radiation in the cavity, and analyzing the decay of the light in the cavity to obtain a spectral analysis of the sample gas.
    • 本发明是能够以非常低的浓度检测气体的成分的方法和装置,其包括在第一环境条件下提供至少第一特定气体的吸收剂的介质和在第二环境条件下特定气体的解吸附剂 在第一环境条件下在第一时间段内的样品气体的介质,在第一时间段之后的第二时间段内,将介质暴露于第二环境条件,以使介质将气体解吸到光腔中 的腔环下光谱仪,并在第二时间段内的第三个时间段内将电磁辐射引入空腔,停止将电磁辐射引入空腔中,并检测腔内电磁辐射的衰减,并分析 在空腔中的光的衰减以获得样品气体的光谱分析。
    • 6. 发明授权
    • Spectroscopy method and apparatus for detecting low concentration gases
    • 用于检测低浓度气体的光谱法和设备
    • US07612885B2
    • 2009-11-03
    • US11615617
    • 2006-12-22
    • Barrett E. ColeJames Allen CoxYuandong GuRodney H. Thorland
    • Barrett E. ColeJames Allen CoxYuandong GuRodney H. Thorland
    • G01N21/00
    • G01J3/02G01J3/021G01J3/027G01J3/0286G01J3/42G01N21/15G01N21/39G01N2021/151G01N2021/391
    • The invention is a method and apparatus capable of detecting constituents of a gas at extremely low concentrations comprising providing a medium that is absorbent of at least a first particular gas under a first environmental condition and desorbent of the particular gas under a second environmental condition, exposing the medium to a sample gas for a first period of time under the first environmental condition, during a second period of time after the first period of time, exposing the medium to the second environmental condition to cause the medium to desorb gas into an optical cavity of a cavity ring down spectrometer and introducing electromagnetic radiation into the cavity, during a third period of time after the second period of time, ceasing introduction of the electromagnetic radiation into the cavity and detecting the decay of the electromagnetic radiation in the cavity, and analyzing the decay of the light in the cavity to obtain a spectral analysis of the sample gas.
    • 本发明是能够以非常低的浓度检测气体的成分的方法和装置,其包括在第一环境条件下提供至少第一特定气体的吸收剂的介质和在第二环境条件下特定气体的解吸附剂 在第一环境条件下在第一时间段内的样品气体的介质,在第一时间段之后的第二时间段内,将介质暴露于第二环境条件,以使介质将气体解吸到光腔中 的腔环下光谱仪,并在第二时间段内的第三个时间段内将电磁辐射引入空腔,停止将电磁辐射引入空腔中,并检测腔内电磁辐射的衰减,并分析 在空腔中的光的衰减以获得样品气体的光谱分析。
    • 9. 发明授权
    • SERS analyzer
    • SERS分析仪
    • US07502106B2
    • 2009-03-10
    • US11533984
    • 2006-09-21
    • Yuandong GuJames A. CoxBarrett E. Cole
    • Yuandong GuJames A. CoxBarrett E. Cole
    • G01J3/44G01N21/65
    • G01N21/658
    • A surface enhanced Raman scatter (SERS) analyte analyzer. The analyzer has floating surfaces for enhancement of the Raman scattered light from sample molecules. An injector may provide a spray of charged nanoparticles suspended in droplets of an evaporable solution into a chamber. When the solution quickly evaporates, droplets of nanoparticles are left without a supporting solution. These droplets or cloud of charged nanoparticles may then explode into a dispersion or aerosol. The charged nanoparticles may attract molecules of a sample for attachment to their surfaces. A laser light may impinge the attached molecules which may result in surface enhanced Raman scattered light received by a detector or a light spectrometer. Wavelength signatures may then be obtained from the spectrometer. The signatures may provide information about the molecules.
    • 表面增强拉曼散射(SERS)分析仪。 分析仪具有用于增强样品分子的拉曼散射光的浮动表面。 注射器可以将悬浮在可蒸发溶液的液滴中的带电荷的纳米颗粒的喷雾提供到室中。 当溶液快速蒸发时,留下纳米颗粒液滴而没有支撑溶液。 这些液滴或带电的纳米颗粒云可能会爆炸成分散体或气溶胶。 带电的纳米颗粒可以吸引样品的分子以附着到它们的表面。 激光可以撞击附着的分子,这可能导致由检测器或光谱仪接收的表面增强的拉曼散射光。 然后可以从光谱仪获得波长特征。 签名可以提供关于分子的信息。
    • 10. 发明申请
    • SERS ANALYZER
    • SERS分析仪
    • US20080074662A1
    • 2008-03-27
    • US11533984
    • 2006-09-21
    • Yuandong GuJames A. CoxBarrett E. Cole
    • Yuandong GuJames A. CoxBarrett E. Cole
    • G01J3/44G01N21/65
    • G01N21/658
    • A surface enhanced Raman scatter (SERS) analyte analyzer. The analyzer has floating surfaces for enhancement of the Raman scattered light from sample molecules. An injector may provide a spray of charged nanoparticles suspended in droplets of an evaporable solution into a chamber. When the solution quickly evaporates, droplets of nanoparticles are left without a supporting solution. These droplets or cloud of charged nanoparticles may then explode into a dispersion or aerosol. The charged nanoparticles may attract molecules of a sample for attachment to their surfaces. A laser light may impinge the attached molecules which may result in surface enhanced Raman scattered light received by a detector or a light spectrometer. Wavelength signatures may then be obtained from the spectrometer. The signatures may provide information about the molecules.
    • 表面增强拉曼散射(SERS)分析仪。 分析仪具有用于增强样品分子的拉曼散射光的浮动表面。 注射器可以将悬浮在可蒸发溶液的液滴中的带电荷的纳米颗粒的喷雾提供到室中。 当溶液快速蒸发时,留下纳米颗粒液滴而没有支撑溶液。 这些液滴或带电的纳米颗粒云可能会爆炸成分散体或气溶胶。 带电的纳米颗粒可以吸引样品的分子以附着到它们的表面。 激光可以撞击附着的分子,这可能导致由检测器或光谱仪接收的表面增强的拉曼散射光。 然后可以从光谱仪获得波长特征。 签名可以提供关于分子的信息。