Filter paper treatment for improved diagnostic assays
US6309887A · kind A · utility
31Cited by
17References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 27, 1999 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Jan 27, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/723
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.