Radiant energy – Automatic/serial detection of similar sources
Patent
1990-08-14
1992-10-27
Fields, Carolyn E.
Radiant energy
Automatic/serial detection of similar sources
250361C, 422 52, 422102, G01N 2176
Patent
active
051591979
ABSTRACT:
Apparatus for performing and measuring chemical reactions includes a reaction test apparatus having reaction wells wherein reactants are controllably mixed, and exposure apparatus which receives and positions the reaction test apparatus adjacent a photographic film. Each of the reaction wells includes at least two reaction cups, arranged one above the other. The uppermost reaction cups have orifices in the bottoms, so that liquid can be mixed and reacted in the uppermost cup, and then controllably transferred to the lower cup to be mixed with additional reactants. In a preferred embodiment, the reaction cups are supported in plates that are structurally integrated with the cups, and are superimposed to make a test block. The test block is retained in the exposure apparatus, and liquid is forced from the upper cup to the lower cup by application of pressure to the top of the upper cup. The apparatus of the invention is particularly suited for measuring reactions that produce luminescence of short duration, as the reactants can be conveniently mixed in darkness, while the film is being exposed.
REFERENCES:
patent: 3785928 (1974-01-01), Kessler
patent: 4895706 (1990-01-01), Root et al.
patent: 4985631 (1991-01-01), Wannlund et al.
Difco Laboratories
Fields Carolyn E.
Garmong Gregory
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