Colorimetric analyzer

Details Colorimetric analyzer Colorimetric analyzer

1974-07-29

1976-08-17

Reese, Robert M.

Chemistry: physical processes

Physical processes

Crystallization

250564, G01N 2124

Patent

active

039751600

ABSTRACT:
A colorimetric analyzer automatically and continuously measures the transmission of light through a sample which has been mixed with reagents. Precise volumes of the sample are repeatedly measured by a siphon tube. Volumes of the reagent are added to the sample at different times in a measuring cycle. The reagent is added at different places in the analyzer so that it is possible for two different time-consuming reactions to proceed simultaneously. The mixed reagent and sample is supplied to a measuring cell which includes a source of light and a photocell. The distance between the source of light and the photocell are adjustable to accommodate analyses of mixtures with widely varying light transmission while providing a full scale output indication. The output of a photocell is applied to a sample and hold circuit during time intervals when the reactions of the reagents with the sample have been completed.

REFERENCES:
patent: 3028225 (1962-04-01), Sheen
patent: 3030192 (1962-04-01), Schneider, Jr.
patent: 3476516 (1969-11-01), Curry
Fisher Scientific Co., Modern Laboratory Appliances, 1942, p. 65.

Affiliated with

Also associated with

Rating

Colorimetric analyzer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Colorimetric analyzer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Colorimetric analyzer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1483639