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    Hybrid laser-induced breakdown spectroscopy system
    2.
    发明专利
    Hybrid laser-induced breakdown spectroscopy system 未知

    公开(公告)号：AU2019264883B2

    公开(公告)日：2021-07-01

    申请号：AU2019264883

    申请日：2019-05-09

    Applicant: NAT RES COUNCIL CANADA

    Inventor： BOUCHARD PAUL ,  SABSABI MOHAMAD ,  BLOUIN ALAIN ,  PADIOLEAU CHRISTIAN

    IPC: G01N21/71 ,  G01J3/18

    Abstract: A LIBS system to detect constituent elements of interest within a sample from plasma light resulting from irradiation of this sample is presented. The LIBS system has a hybrid configuration which provides both a low-resolution spectrum of the plasma light covering a broad spectral range, and a high-resolution spectrum of the same plasma light over a narrow spectral range centered on a spectral line or feature of a constituent element of interest of the sample. In some implementations, the LIBS system has a portable design and can perform onsite sample analyses.

    HIGH RESOLUTION AND HIGH THROUGHPUT SPECTROMETER
    4.
    发明专利
    HIGH RESOLUTION AND HIGH THROUGHPUT SPECTROMETER 未知

    公开(公告)号：CA3096129A1

    公开(公告)日：2019-10-31

    申请号：CA3096129

    申请日：2019-04-24

    Applicant: NAT RES COUNCIL CANADA

    Inventor： BOUCHARD PAUL ,  SABSABI MOHAMAD ,  PADIOLEAU CHRISTIAN

    IPC: G01J3/18

    Abstract: Spectrometer designs are provided. The spectrometer includes two planar diffraction gratings disposed in a cascade, without intervening optics therebetween. Advantageously, the described configurations may promote both a high throughput and a high resolution, enabling the design of a portable device having sufficient resolution for on-site use or in the laboratory. In some implementations, two different secondary diffraction channels may be provided.

    6.
    发明专利
    未知

    公开(公告)号：DE69718811T2

    公开(公告)日：2003-07-10

    申请号：DE69718811

    申请日：1997-11-04

    Applicant: NAT RES COUNCIL CANADA OTTAWA

    Inventor： SABSABI MOHAMAD ,  BUSSIERE F

    IPC: G01N21/63 ,  G01N21/71 ,  G01N33/15

    Abstract: A method and apparatus for rapid in-situ spectroscopic analysis of preselected components of homogeneous solid chemical compositions, especially pharmaceutical products. The apparatus comprises a high-power pulsed laser whose beam is focused on the material, typically a tablet or the powder prior to compaction into the tablet, which generally consists of an active ingredient (e.g. a drug) and a filler material (cellulose, glucose, lactose, etc.). The pulsed laser beam vaporizes a small volume of the pharmaceutical product and produces a plasma having an elemental composition which is representative of the pharmaceutical product. The atomic composition of the vaporized material is analyzed with an optical spectrometer. As the temperature of the plasma is sufficiently elevated to cause dissociation of the molecules of the constituents of the pharmaceutical product, the concentration of the active ingredient is obtained by analyzing the atomic concentration of an element which is present in the active ingredient but not in the matrix or filler material, or whose concentration in the active ingredient is substantially different from the matrix, and acts as a tag on the active material. The technique can also be used to analyze inactive ingredients or the presence of unwanted contaminants which consist of elements not normally present in such pharmaceutical products such as trace metals introduced accidentally during processing.

    7.
    发明专利
    未知

    公开(公告)号：DE69718811D1

    公开(公告)日：2003-03-06

    申请号：DE69718811

    申请日：1997-11-04

    Applicant: NAT RES COUNCIL CANADA OTTAWA

    Inventor： SABSABI MOHAMAD ,  BUSSIERE F

    IPC: G01N21/63 ,  G01N21/71 ,  G01N33/15

    Abstract: A method and apparatus for rapid in-situ spectroscopic analysis of preselected components of homogeneous solid chemical compositions, especially pharmaceutical products. The apparatus comprises a high-power pulsed laser whose beam is focused on the material, typically a tablet or the powder prior to compaction into the tablet, which generally consists of an active ingredient (e.g. a drug) and a filler material (cellulose, glucose, lactose, etc.). The pulsed laser beam vaporizes a small volume of the pharmaceutical product and produces a plasma having an elemental composition which is representative of the pharmaceutical product. The atomic composition of the vaporized material is analyzed with an optical spectrometer. As the temperature of the plasma is sufficiently elevated to cause dissociation of the molecules of the constituents of the pharmaceutical product, the concentration of the active ingredient is obtained by analyzing the atomic concentration of an element which is present in the active ingredient but not in the matrix or filler material, or whose concentration in the active ingredient is substantially different from the matrix, and acts as a tag on the active material. The technique can also be used to analyze inactive ingredients or the presence of unwanted contaminants which consist of elements not normally present in such pharmaceutical products such as trace metals introduced accidentally during processing.

    HYBRID LASER-INDUCED BREAKDOWN SPECTROSCOPY SYSTEM
    9.
    发明专利
    HYBRID LASER-INDUCED BREAKDOWN SPECTROSCOPY SYSTEM 未知

    公开(公告)号：CA3099449A1

    公开(公告)日：2019-11-14

    申请号：CA3099449

    申请日：2019-05-09

    Applicant: NAT RES COUNCIL CANADA

    Inventor： BOUCHARD PAUL ,  SABSABI MOHAMAD ,  BLOUIN ALAIN ,  PADIOLEAU CHRISTIAN

    IPC: G01N21/71 ,  G01J3/18

    Abstract: A LIBS system to detect constituent elements of interest within a sample from plasma light resulting from irradiation of this sample is presented. The LIBS system has a hybrid configuration which provides both a low-resolution spectrum of the plasma light covering a broad spectral range, and a high-resolution spectrum of the same plasma light over a narrow spectral range centered on a spectral line or feature of a constituent element of interest of the sample. In some implementations, the LIBS system has a portable design and can perform onsite sample analyses.

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