Cuvet and associated apparatus and method for using same

Details Cuvet and associated apparatus and method for using same Cuvet and associated apparatus and method for using same

1980-02-19

1983-12-13

Corbin, John K.

Optics: measuring and testing

Sample, specimen, or standard holder or support

Fluid containers

7386411, G01N 114

Patent

active

044202547

ABSTRACT:
A cuvet with an open upper portion adapted for connection to a source of variable pressure and a lower, sample retaining or window portion having a draw hole and transparent windows. A controlled source of variable pressure is provided with means for releasible connection to the open upper portion of the cuvet. After connection, the variable pressure source is actuated to reduce the pressure in the open upper portion of the cuvet to draw liquid sample through the draw hole and into alignment with the windows. The variable pressure source is also employed to transport and insert the cuvet into a cuvet holder of a spectrophotometer. The pressure is maintained in the cuvet to hold the liquid specimen aligned with the windows while the spectroanalysis is performed. Upon completion of analysis, means associated with the variable pressure source to heat and stir the sample while in the cuvet and to detach the cuvet are respectively provided. In one embodiment the above operations are performed manually through use of a hand-held variable pressure source and in another embodiment they are performed automatically.

REFERENCES:
patent: Re30391 (1980-09-01), Liston
patent: 3622279 (1971-11-01), Moran
patent: 3628682 (1971-12-01), Paulson
patent: 3786683 (1974-01-01), Berman et al.
patent: 3860347 (1975-01-01), Jones
patent: 3865548 (1975-02-01), Padawer
patent: 3869215 (1975-03-01), Nolan
patent: 3961899 (1976-06-01), Trivedi et al.
patent: 3999948 (1976-12-01), Deindoerfer et al.
patent: 4305665 (1981-12-01), Achter et al.

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