Chemistry: physical processes – Physical processes – Crystallization
Patent
1976-10-14
1978-08-01
Scovronek, Joseph
Chemistry: physical processes
Physical processes
Crystallization
23230B, 23253R, 23259, 734254P, 128 2F, 128DIG5, 210DIG23, 356246, A61B 1000, B01L 302, G01N 110, G01N 3316
Patent
active
041040252
ABSTRACT:
A method of preparing samples for testing, such as blood samples for photometric testing. A small quantity of the material to be tested, such as blood, is drawn into a capillary tube. The tube is then placed in a centrifuge and subjected to the action of centrifugal force which separates the test substance within the tube into a heavier component at one end of the tube and a lighter component at the other end. A second capillary tube, having an external diameter slightly less than the internal diameter of the first tube, is then introduced into the first tube and, by capillary action, picks up a definite measured quantity of the desired component from the first tube. The second tube, with the measured quantity of desired component therein, is placed in a cuvet previously provided with a predetermined quantity of a desired reagent liquid, and the cuvet is then shaken to disperse the contents of the second capillary tube into the reagent liquid in the cuvet. The thoroughly mixed contents of the cuvet are then ready for testing in any desired way, such as by use of a photometer.
REFERENCES:
patent: 3475127 (1969-10-01), Gilford
patent: 3570314 (1971-03-01), Wagner
patent: 3983037 (1976-09-01), Lee et al.
patent: 3992150 (1976-11-01), Retzer
patent: 4024857 (1977-05-01), Blecher et al.
Compur-Werk Gesellschaft mit beschrankter Haftung & Co.
Scovronek Joseph
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