The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 13, 2005
Filed:
Feb. 25, 2004
John D. Maynard, Albuquerque, NM (US);
Shonn P. Hendee, Albuquerque, NM (US);
Mark R. Rohrscheib, Albuquerque, NM (US);
David Nunez, Albuquerque, NM (US);
M. Kathleen Alam, Cedar Crest, NM (US);
James E. Franke, Franklin, TN (US);
Gabor J. Kemeny, Madison, WI (US);
John D. Maynard, Albuquerque, NM (US);
Shonn P. Hendee, Albuquerque, NM (US);
Mark R. Rohrscheib, Albuquerque, NM (US);
David Nunez, Albuquerque, NM (US);
M. Kathleen Alam, Cedar Crest, NM (US);
James E. Franke, Franklin, TN (US);
Gabor J. Kemeny, Madison, WI (US);
InLight Solutions, Inc., Albuquerque, NM (US);
Abstract
Methods and apparatuses of determining the pH of a sample. A method can comprise determining an infrared spectrum of the sample, and determining the hemoglobin concentration of the sample. The hemoglobin concentration and the infrared spectrum can then be used to determine the pH of the sample. In some embodiments, the hemoglobin concentration can be used to select an model relating infrared spectra to pH that is applicable at the determined hemoglobin concentration. In other embodiments, a model relating hemoglobin concentration and infrared spectra to pH can be used. An apparatus according to the present invention can comprise an illumination system, adapted to supply radiation to a sample; a collection system, adapted to collect radiation expressed from the sample responsive to the incident radiation; and an analysis system, adapted to relate information about the incident radiation, the expressed radiation, and the hemoglobin concentration of the sample to pH.