Pump colorimetric analyzer

Details Pump colorimetric analyzer Pump colorimetric analyzer

1986-02-19

1987-12-29

McGraw, Vincent P.

Optics: measuring and testing

Sample, specimen, or standard holder or support

Fluid containers

356244, 356410, G01N 110, G01N 2185

Patent

active

047157100

ABSTRACT:
A pump colorimetric analyzer is described including: (a) a sample cell through which a light beam is transmitted, (b) a light source, (c) a photodetector, and (d) a piston which reciprocates between first and second positions in the cell. The piston includes a sample chamber which permits the light beam to be transmitted therethrough when the piston is in its second position. When the piston is in its first position the light beam is transmitted through the sample cell. The novel analyzer uses a single light source, a single sample cell and a single photodetector.

REFERENCES:
patent: 3118390 (1964-01-01), Kingsley
patent: 3418061 (1968-12-01), Schultz
patent: 3607082 (1971-09-01), Thiers
patent: 3607095 (1971-09-01), Etzlinger
patent: 3932065 (1976-01-01), Ginsberg et al.
patent: 4053282 (1977-10-01), Hach et al.
patent: 4288308 (1981-09-01), Hach
patent: 4291986 (1981-09-01), Satou et al.

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