Chemistry: analytical and immunological testing – Involving kinetic measurement of antigen-antibody reaction
Patent
1981-11-19
1984-06-05
Turk, Arnold
Chemistry: analytical and immunological testing
Involving kinetic measurement of antigen-antibody reaction
356427, 422 72, 422 73, 436 34, 436 45, 436164, 436805, G01N 2182, G01N 3354
Patent
active
044529023
ABSTRACT:
Method and apparatus for the measurement of properties of a liquid present in a vessel (2), for example for the measurement of the absorbance of a liquid, of the properties of an agglutination, precipitate (4) or any other reaction result placed on the bottom of a vessel, by means of radiation and of a detector (3) receiving radiation while the vessel moves along with a rotor revolving around the vertical axis (15) of a centrifuge. Thereby the beam of measurement (5) coming from the source of radiation (1) passes substantially horizontally and the intensity of the radiation passing through, or reflected from, the contents of the vessel is measured. According to the invention, for the purpose of the measurement of the properties of the liquid, after the vessel (2) has pivoted for the measurement by the effect of centrifugal force so that its longitudinal axis is positioned substantially horizontally, a field of limited area is measured out of the bottom of the vessel (2) while the vessel (2) moves along with the rotor of the centrifuge through the space between the source of radiation (1) and the detector (3). The measurement result of the component field at each particular time under measurement is read constantly or at specified intervals for the purpose of processing and output of the information.
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patent: 4316872 (1982-02-01), Rahm et al.
Ekholm Pertti
Jarnefelt Johan
Kaukanen Esko
Partanen Paul
Suovaniemi Osmo A.
Labsystems Oy
Turk Arnold
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