MEASURING DEVICE FOR DETERMINING THE SIZE, SIZE DISTRIBUTION AND QUANTITY OF PARTICLES IN THE NANOSCOPIC RANGE

    公开(公告)号:US20090185160A1

    公开(公告)日:2009-07-23

    申请号:US12278573

    申请日:2007-02-02

    Abstract: The present invention relates to a measuring device to determine the size, size distribution and/or concentration of nanoscopic particles or hollow spaces in a measuring sample, the degree of opacity of such measuring samples, or the degree of roughness of surfaces by determining the wavelength and scattering angle dependent intensities of a measuring radiation scattered on a measuring sample, comprising a retaining device for a measuring sample to be measured, a detector, comprising at least one detector inlet, an evaluation unit and at least two radiation sources, which are respectively at a distance from each other and at a distance from the measuring sample, which comprise a multiple wavelength spectrum or a continuous spectrum, and the radiation intensities of which are adjustable and/or determinable, wherein via the radiation sources one ray bundle can in each case be emitted in an essentially parallel beam in the direction of a measuring sample, and wherein the ray bundles which can be directed onto the measuring sample, which have different radiation sources in relation to the axis between the detector inlet and the measuring sample, are aligned or can be aligned in different angles onto the measuring sample.Furthermore, the invention relates to a method for determining the size and/or concentration of particles or hollow spaces in the nanoscopic range in a viscous, fluid or gaseous measuring sample, comprising the following stages: a) the provision of a measuring device according to the invention, b) the provision of a measuring sample to be measured in the retaining device for the measuring sample, c) the radiation of the measuring sample with at least two radiation sources, comprising the radiation of a multiple wavelength or of a continuous spectrum, with ray bundles of essentially parallel rays, d) the detection of the radiation scattered at a particular angle on the measuring sample using a detector comprising a detector inlet, and e) the wavelength and angle-dependent evaluation of the detected signal intensities of the scattered radiation in an evaluation unit in order to determine the size, size distribution and/or concentration of the nanoscopic particles present in the measuring sample. The invention also relates to a method for determining the heparin share in blood samples or in blood serum samples, comprising: a) the provision of a measuring device according to the invention, b) the provision of a blood or blood serum sample in the retaining device for the measuring sample, which has already been mixed with at least one heparin antagonist and/or which, when present in the retaining device, is mixed with at least one heparin antagonist in order to form an antagonist/heparin complex, c) in particular successive radiation of the measuring sample with at least two radiation sources, comprising the radiation of a multiple wavelength or of a continuous spectrum, with ray bundles of essentially parallel rays, d) the detection of the radiation scattered at a particular angle on the measuring sample using a detector comprising a detector inlet, and e) the wavelength and angle-dependent evaluation of the detected signal intensities in an evaluation unit in order to determine the concentration of the antagonist/heparin complex present in the measuring sample.

    Measuring device for determining the size, size distribution and quantity of particles in the nanoscopic range
    2.
    发明授权
    Measuring device for determining the size, size distribution and quantity of particles in the nanoscopic range 有权
    用于确定纳米级范围内颗粒尺寸,尺寸分布和数量的测量装置

    公开(公告)号:US07920260B2

    公开(公告)日:2011-04-05

    申请号:US12278573

    申请日:2007-02-02

    Abstract: A measuring device determines the size, size distribution, and/or concentration of nanoscopic particles or hollow spaces in a measuring sample, the degree of opacity of such measuring samples, or the degree of roughness of surfaces by determining the wavelength and scattering angle dependent intensities of a measuring radiation scattered on a measuring sample. The measuring device comprises a retaining device for a measuring sample to be measured, a detector comprising at least one detector inlet, an evaluation unit, and at least two radiation sources that are respectively at a distance from each other and at a distance from the measuring sample. Via the radiation sources, a ray bundle can in each case be emitted in an essentially parallel beam in the direction of the measuring sample. The ray bundles directed onto the measuring sample are aligned or can be aligned in different angles onto the measuring sample.

    Abstract translation: 测量装置通过确定波长和散射角相关强度来确定测量样品中的纳米级颗粒或中空空间的尺寸,尺寸分布和/或浓度,这些测量样品的不透明度或表面粗糙度 的测量辐射散射在测量样品上。 测量装置包括用于待测量的测量样品的保持装置,包括至少一个检测器入口,评估单元和至少两个辐射源的检测器,所述至少两个辐射源分别彼此距离并且距离测量 样品。 通过辐射源,射线束可以在每种情况下沿测量样品的方向以基本平行的光束发射。 被引导到测量样品上的射线束对准或可以以不同的角度对准到测量样品上。

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