公开(公告)号：AU2003245143A1

公开(公告)日：2004-01-06

申请号：AU2003245143

申请日：2003-06-17

Applicant: NAT RES COUNCIL CANADA

Inventor： LUCAS JOHN M ,  SABSABI MOHAMAD ,  HEON RENE

IPC: G01N21/27 ,  G01N21/71 ,  G01N21/00

Abstract: An apparatus and a method are disclosed for use with Laser Induced Breakdown Spectroscopy (LIBS) systems that can be applied to the real time analysis of molten materials or liquid. Since it is difficult to prepare a surface representative of the bulk when dealing with high temperature molten material, the invention, in one aspect, uses a forced gas flow through a tube insertable inside the molten material to generate a bubble. The inner surface of the bubble is a representative of the composition of the material. LIBS performed on such a surface produces an accurate real time analysis of material, even when other processing of material, e.g., copper smelting, etc., is being conducted.

公开(公告)号：AU2017347026B2

公开(公告)日：2022-08-11

申请号：AU2017347026

申请日：2017-10-20

Applicant: NAT RES COUNCIL CANADA

Inventor： BOUCHARD PAUL ,  SABSABI MOHAMAD ,  PADIOLEAU CHRISTIAN ,  HEON RENE ,  HARDMAN PETER JOHN

IPC: G01N21/71

Abstract: Described are various embodiments of a system, method and device for laser induced breakdown spectroscopy (LIBS). In some embodiments, the LIBS system comprises a silicon photomultiplier (Si PM) operated in a time-gated photon counting mode. Some such embodiments allow for the provision of a portable LIBS device. Also provided are embodiments for the measurement of constituent carbon, gold and/or other precious metal group elements in a target sample.

公开(公告)号：AU2015275734B2

公开(公告)日：2020-10-08

申请号：AU2015275734

申请日：2015-06-19

Applicant: NAT RES COUNCIL CANADA

Inventor： SABSABI MOHAMAD ,  MONCHALIN JEAN-PIERRE ,  HEON RENE ,  BOUCHARD PAUL

IPC: G01N21/71

Abstract: A method for laser induced breakdown spectroscopy (LIBS) calibration or LIBS assay comprises providing a plurality of reference samples, each having a respective, known concentration of an analyte, assaying each reference sample to obtain a respective LIBS spectrum, and for each reference LIBS spectrum, measuring an intensity of at least one spectral analyte line that varies with concentration of the analyte, and measuring a peak amplitude of at least one saturating line of a reference element. The ratio and known concentrations define a calibration curve for the analyte.

公开(公告)号：AU2015275734A1

公开(公告)日：2017-02-02

申请号：AU2015275734

申请日：2015-06-19

Applicant: NAT RES COUNCIL CANADA

Inventor： SABSABI MOHAMAD ,  MONCHALIN JEAN-PIERRE ,  HEON RENE ,  BOUCHARD PAUL

IPC: G01N21/71

Abstract: A method for laser induced breakdown spectroscopy (LIBS) calibration or LIBS assay comprises providing a plurality of reference samples, each having a respective, known concentration of an analyte, assaying each reference sample to obtain a respective LIBS spectrum, and for each reference LIBS spectrum, measuring an intensity of at least one spectral analyte line that varies with concentration of the analyte, and measuring a peak amplitude of at least one saturating line of a reference element. The ratio and known concentrations define a calibration curve for the analyte.

公开(公告)号：CA2966701A1

公开(公告)日：2016-05-12

申请号：CA2966701

申请日：2015-11-06

Applicant: NAT RES COUNCIL CANADA

Inventor： BOUCHARD PAUL ,  DOUCET FRANCOIS ,  OZCAN LUTFU-CELEBI ,  SABSABI MOHAMAD

IPC: G01N21/71 ,  G01J3/443

Abstract: The present invention provides a method and compact apparatus for laser induced breakdown atomic emission spectroscopy from a targeted sample having a laser generating a laser beam, the laser beam directed to the sample, optical means for manipulating the laser beam in order maximize laser fluency at the target surface of the sample, the laser beam generating ablation and plasma emission from the sample at the target surface, an emission spectrometer having a detector for detecting a plasma plume from the plasma emission.

公开(公告)号：CA2931676A1

公开(公告)日：2015-06-04

申请号：CA2931676

申请日：2014-11-26

Applicant: NAT RES COUNCIL CANADA

Inventor： DOUCET FRANCOIS ,  SABSABI MOHAMAD ,  OZCAN LUTFU-CELEBI ,  GRAVEL JEAN-FRANCOIS ,  BOISMENU FRANCIS

IPC: G01N21/71 ,  G01J3/443

Abstract: The invention discloses an apparatus and method for use with Laser Induced Breakdown Spectroscopy (LIBS) systems that can be applied to the real time analysis of various materials. The invention, in one aspect, provides a layer-by-layer method to remove the undesired coating layer of a material in which a pulsed laser is coupled with high speed scanning optics. To prepare the surface for LIBS, (i) a pulsed laser beam is scanned over an area of the surface to ablate the surface coating layer; (ii) the laser parameters are changed (i.e. pulse duration is made smaller) and the area scanned again to polish the surface; and (iii) the laser parameters are changed again (i.e. pulse duration is made smaller yet again) and the area scanned again with spectrometric analysis of the plasma plume created by the laser (i.e. LIBS is performed).

公开(公告)号：CA3085254C

公开(公告)日：2022-11-15

申请号：CA3085254

申请日：2020-07-02

Applicant: NAT RES COUNCIL CANADA ,  SYNCRUDE CANADA LTD

Inventor： HARHIRA AISSA ,  PAPROSKI RICHARD ,  EL HADDAD JOSETTE ,  SABSABI MOHAMAD ,  BLOUIN ALAIN

IPC: G01N15/02 ,  G01N21/71

Abstract: A method of quantifying at least one property of interest of an oil sands ore sample is provided using a laser-induced breakdown spectroscopy (LIBS) method. The property of interest may include bitumen content, water content, particle size information, cation exchange capacity, methylene blue index, mineralogical content (e.g., quartz, total clay, and clay components), amorphous material content, total ash content, and connate water parameter (e.g., conductivity, chloride content, or alkalinity).

公开(公告)号：CA3099449C

公开(公告)日：2022-01-04

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.

公开(公告)号：AU2019264883A1

公开(公告)日：2021-01-07

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.

公开(公告)号：AU2017347026A1

公开(公告)日：2019-05-09

申请号：AU2017347026

申请日：2017-10-20

Applicant: NAT RES COUNCIL CANADA

Inventor： BOUCHARD PAUL ,  SABSABI MOHAMAD ,  PADIOLEAU CHRISTIAN ,  HEON RENE ,  HARDMAN PETER JOHN

IPC: G01N21/71

Abstract: Described are various embodiments of a system, method and device for laser induced breakdown spectroscopy (LIBS). In some embodiments, the LIBS system comprises a silicon photomultiplier (Si PM) operated in a time-gated photon counting mode. Some such embodiments allow for the provision of a portable LIBS device. Also provided are embodiments for the measurement of constituent carbon, gold and/or other precious metal group elements in a target sample.