Is a
Patent attributes
Patent Applicant
0
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Brian L. Craine0
Date of Patent
January 18, 2005
0Patent Application Number
099941430
Date Filed
November 26, 2001
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A method for determining if blood in a stool sample originated from the upper or lower gastrointestinal tract. This includes a method for purifying and concentrating hemoglobin and its products from a stool sample to allow a simple and sensitive spectrophotometric analysis. A rapid, noninvasive determination of whether the blood originated from an upper gastrointestinal or lower gastrointestinal site is made on the basis of changes in the absorption spectra of hemoglobin that occur when hemoglobin is exposed to a highly acidic environment.
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