Chemistry: analytical and immunological testing – Including sample preparation – Liberation or purification of sample or separation of...
Patent
1996-09-27
1998-08-04
Le, Long V.
Chemistry: analytical and immunological testing
Including sample preparation
Liberation or purification of sample or separation of...
436174, 436179, 436180, 436 45, 422 72, 422 99, 422100, 422104, 366213, 366218, 494 16, G01N 100, G01N 138
Patent
active
057892598
ABSTRACT:
A transparent capillary tube containing a blood sample, a float, an anticoagulant plus other reagents, is centrifuged in a centrifuge so as to cause the various blood sample constituents such as cells and the like to gravimetrically separate out in the tube. The blood sample is drawn into the tube which already contains the float and reagents. In order to ensure proper mixing of the blood and the reagents in the tube, the tube is periodically centrifuged in opposite directions so that the various formed components in the blood and the float will gravitate first toward one end of the tube and then toward the opposite end of the tube. The tube will preferably be contained in a cassette which is removably positioned on the centrifuge platen.
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patent: 4835106 (1989-05-01), Johnson et al.
patent: 5173262 (1992-12-01), Butis et al.
patent: 5279150 (1994-01-01), Katzer et al.
Jones William W.
Le Long V.
Levine Robert A.
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