Browsing by Subject "250/288"

Now showing items 1-4 of 4

    • Advanced optics for rapidly patterned laser profiles in analytical spectrometry 
      Russell, David H.; Mclean, John A. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2007-10-16)
      The present invention is directed to a novel arrangement of optical devices for the rapid patterning of laser profiles used for desorption and/or ionization sources in analytical mass spectrometry. Specifically, the new ...
    • Ion source for compact mass spectrometer and method of mass analyzing a sample 
      Da Silveira, Enio Frota; Ray, Kevin Bernard; Schweikert, Emile Alfred; Park, Melvin Andrew (United States. Patent and Trademark Office; Texas A&M University. Libraries, 1998-12-22)
      A mass spectrometer 20 includes an electron multiplier 30 for producing an electron avalanche 58 directed toward an ionization region 38. A sample 40 enters the ionization region 38 through a sample inlet 68. In the ...
    • Periodic field focusing ion mobility spectrometer 
      Gillig, Kent J.; Russell, David H. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2003-10-28)
      This invention is generally in the field of improved ion mobility spectrometry. The improvement lies in the use of periodic focusing electric fields that minimize the spatial spread of the migrating ions by keeping them ...
    • Pneumatic nebulizing interface to convert an analyte-containing fluid stream into an aerosol, method for using same and instruments including same 
      Vigh, Gyula; Sokolowski, Alex D. (United States. Patent and Trademark Office; Texas A&M University. Libraries, 2003-01-28)
      A self-adjusting, free-flowing pneumatic nebulizer interface is described for coupling fluid phase separation apparatus such as capillary electrophoresis apparatus or fluid-phase analyte delivery apparatus such as ...