Magnetic stirrer for sample container of photometric analyzer

Details Magnetic stirrer for sample container of photometric analyzer Magnetic stirrer for sample container of photometric analyzer

1979-07-06

1980-10-14

Corbin, John K.

Optics: measuring and testing

For light transmission or absorption

Of fluent material

356246, 366273, G01N 2101

Patent

active

042278155

ABSTRACT:
Photometric analysis apparatus in which a sample to be optically measured is stirred by a rotating magnetic stirring element within a container holding the sample. An optical path through the container and through the sample therein intersects the rotational path of the stirring element and is hence obstructed by the stirring element in one or more rotational positions. Rotation of the stirring element is controlled in a manner which stops rotation thereof in a position out of the optical path thereby allowing optical measurement of the sample material unobstructed by the stirring element.

REFERENCES:
patent: 3784170 (1974-01-01), Petersen et al.
patent: 3981594 (1976-09-01), George
patent: 3997272 (1976-12-01), George
patent: 4090263 (1978-05-01), Hoffa

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