G - Physics – 01 – N
Patent
G - Physics
01
N
73/114
G01N 31/00 (2006.01) B01L 3/00 (2006.01) G01N 21/03 (2006.01)
Patent
CA 1059788
ABSTRACT OF THE DISCLOSURE A multichamber cuvette for maintaining in independent and separate condition at least two reactants one of which may be a sample, until such time that it is desired to mix them for reaction with each other for photometric analysis in the cuvette. At least one of the chambers has a pair of optical quality windows which windows are aligned with one another for analysis of the then liquid contents extending between the windows. The uvette body is of upright construction, defining at least two such chambers laterally of one another, open at the top for filling separately or simultaneously, and interconnected adjacent their lower extremities by a passageway of inverted U shape. The passageway is of an effective height exceeding the highest filling level of each chamber by a distance at least as great as any capillary rise in the passageway beyond such level of the particular liquid in that chamber. Accidental mixing of the- chamber contents is prevented by entrapment of air in the passage- way by the respective liquids in the chambers and partially filling the legs of the passageway. The resistance of the entrapped air to such mixing through the passageway mar be over- come at the time mixing is desired by the forced flow of fluids therethrough from one chamber to the other while one of the chambers is vented to the atmosphere at the top. The passageway is so configured and also dimensioned in cross section as to allow for the free flow of liquid between the chambers once the entrapped air within the passageway has been removed. - 2 -
266162
Farrell Gregory A.
Gordon Abraham
LandOfFree
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