Partial thromboplastin, its use as diagnostic agent and process

Details Partial thromboplastin, its use as diagnostic agent and process Partial thromboplastin, its use as diagnostic agent and process

1975-07-28

1976-09-14

Reese, Robert M.

Chemistry: physical processes

Physical processes

Crystallization

424 95, 424101, 424105, A61K 3550, G01N 3316

Patent

active

039804321

ABSTRACT:
The present invention relates to a process for preparing partial thromboplastin which comprises extracting bloodless dry placentae with an organic solvent, separating the extract from the undissolved substance, evaporating, dispersing the residue in water and adding, if desired, a stabilizer and/or lyophilizing. It further relates to the partial thromboplastin thus obtained and to its use as diagnostic agent.

REFERENCES:
patent: 2687980 (1954-08-01), Blanchard et al.
patent: 2923665 (1960-02-01), Hagan et al.
patent: 3183159 (1965-05-01), Singher et al.
patent: 3862314 (1975-01-01), Zwisler et al.
R. L. Searcy, Diagnostic Biochemistry, McGraw-Hill, 1969, pp. 123, 124, 214-216 relied on.

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