Patents by Inventor Xuming Guo

Xuming Guo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • UV reactive spray chamber for enhanced sample introduction efficiency
    Patent number: 7829872
    Abstract: An analyte for atomic spectrometry detection is prepared by introducing an aerosol of the analyte into a chamber, and irradiating the aerosol with ultraviolet light in the presence of a low molecular weight organic acid or other suitable photoactivatable ligand donor species to create vapor containing the analyte. The vapor containing the analyte is extracted from the chamber and used for atomic spectrometry detection.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: November 9, 2010
    Assignee: National Research Council of Canada
    Inventors: Ralph Edward Sturgeon, Zoltan Mester, Xuming Guo
  • UV REACTIVE SPRAY CHAMBER FOR ENHANCED SAMPLE INTRODUCTION EFFICIENCY
    Publication number: 20090236544
    Abstract: An analyte for atomic spectrometry detection is prepared by introducing an aerosol of the analyte into a chamber, and irradiating the aerosol with ultraviolet light in the presence of a low molecular weight organic acid or other suitable photoactivatable ligand donor species to create vapor containing the analyte. The vapor containing the analyte is extracted from the chamber and used for atomic spectrometry detection.
    Type: Application
    Filed: December 12, 2005
    Publication date: September 24, 2009
    Applicant: NATIONAL RESEARCH COUNCIL OF CANADA
    Inventors: Ralph Edward Sturgeon, Zoltan Mester, Xuming Guo
  • Photochemical transformation of metallic and non-metallic ions in an aqueous environment
    Patent number: 7270728
    Abstract: The invention comprises a method of photochemical transformation of metallic and non-metallic ions in an aqueous environment. The method comprises exposing the ions to UV irradiation in the presence of an organic acid. The aqueous ions are reduced by the method and may form hydrides, alkyl or carbonyl compounds.
    Type: Grant
    Filed: September 15, 2006
    Date of Patent: September 18, 2007
    Assignee: National Research Council of Canada
    Inventors: Xuming Guo, Ralph E. Sturgeon, Zoltan Mester
  • Photochemical transformation of metallic and non-metallic ions in an aqueous environment
    Publication number: 20070007121
    Abstract: The invention comprises a method of photochemical transformation of metallic and non-metallic ions in an aqueous environment. The method comprises exposing the ions to UV irradiation in the presence of an organic acid. The aqueous ions are reduced by the method and may form hydrides, alkyl or carbonyl compounds.
    Type: Application
    Filed: September 15, 2006
    Publication date: January 11, 2007
    Inventors: Xuming Guo, Ralph Sturgeon, Zoltan Mester
  • Photochemical transformation of metallic and non-metallic ions in an aqueous environment
    Publication number: 20050044991
    Abstract: The invention comprises a method of photochemical transformation of metallic and non-metallic ions in an aqueous environment. The method comprises exposing the ions to UV irradiation in the presence of an organic acid. The aqueous ions are reduced by the method and may form hydrides, alkyl or carbonyl compounds.
    Type: Application
    Filed: August 19, 2003
    Publication date: March 3, 2005
    Inventors: Xuming Guo, Ralph Sturgeon, Zoltan Mester