Patent Number: 6,309,887

Title: Filter paper treatment for improved diagnostic assays

Abstract: Filter paper absorbed with a solution of anticoagulant, e.g., ethylene diamine tetra-acetic acid (EDTA), then dried, useful for collection of a blood sample for analysis of hemoglobin or a hemoglobin fraction in the sample showed higher precision in standard assays than untreated filter paper. Methods of using the anticoagulant-treated filter paper are also described.

Inventors: Ray; Robert A. (Stuart, FL)

Assignee: FlexSite Diagnostics, Inc.

International Classification: G01N 33/72 (20060101); G01N 033/72 ()

Expiration Date: 10/30/2018