Determination of urea

Details Determination of urea Determination of urea

1979-12-19

1981-06-16

Turk, Arnold

Chemistry: physical processes

Physical processes

Crystallization

23924, 252408, G01N 3362

Patent

active

042735564

ABSTRACT:
Colorimetric urea determination method and reagent in which urea in a liquid sample reacts with o-phthalaldehyde and chromotropic acid or one of its salts to produce an intensely colored reaction product whose concentration is linearly related to the concentration of urea in the sample and which follows Beer's law over a wide range of urea concentrations.

REFERENCES:
patent: 3427225 (1969-02-01), Harvill
patent: 3890099 (1975-06-01), Jung
patent: 4074972 (1978-02-01), Denney
patent: 4105408 (1978-08-01), Denney
patent: 4119405 (1978-10-01), Lam
patent: 4131425 (1978-12-01), Denney
patent: 4131429 (1978-12-01), Denney
patent: 4131430 (1978-12-01), Denney
Jung et al., "New Colorimetric Reaction for End Point, Continuous Flow and Kinetic Measurements of Urea," Clin. Chem., vol. 21, No. 8 at 1136-1140 (1975).
Goodwin et al., "Spectrophotometric Quantification of Glycine in Serum and Urine," Clin. Chem., vol. 19, No. 9 at 1010-1015, 1973.

Affiliated with

Also associated with

Rating

Determination of urea does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-153327