biuret


Also found in: Dictionary, Medical, Wikipedia.
Related to biuret: Biuret test, Biuret reagent

biuret

[‚bī·ya′ret]
(organic chemistry)
NH2CONHCONH2 Colorless needles that are soluble in hot water and decompose at 190°C; a condensation product of urea.
Mentioned in ?
References in periodicals archive ?
The band sources its name from the biuret chemical test, which if tested positive produces a beautiful colour violet.
The total serum proteins were assayed in triplicate by the colorimetric method called Biuret and measured by their absorbance at 540 nm using the spectrophotometer Spectrum SP-2100.
Total serum protein and albumin were estimated by modified Biuret and Dumas method, glucose by glucose oxidase method, Alanine transaminase (ALT), Aspartate transaminase (AST) and Alkaline phosphatase (ALP) by IFCC (International Federation of Clinical Chemistry) method, Blood urea nitrogen (BUN) by glutamate dehydrogenase method, uric acid by enzymatic photometric test by IFCC method, creatinine by Jaffe's kinetic method, calcium by O-Cresophthalein complexone method, phosphorus by modified Metol method, sodium and potassium by colorimetric method, total cholesterol (TC) by cholesterol dehydrogenase/peroxidase method, triglycerides (TG) by colorimetric enzymatic method.
We measured M-spikes using Helena SPIFE SPE reagent sets (Helena Labs) in combination with serum total protein determined with Biuret reagent (Siemens) on an Advia 1200 (Siemens) and urine total protein determined with pyrogallol red (Wako) on a Cobas c501 analyzer (Roche Diagnostics).
Serum total protein was assayed by the biuret method, albumin by Doumas and Briggs and globulin by Rodkey [12, 13, 14].
Protein was pretreated with copper (II) in a modified biuret reagent (alkaline copper solution stabilized with sodium potassium tartrate).
The protein content was determined by Biuret method (17) using bovine serum albumin as standard.
Total protein was estimated by Biuret test where protein produces a violet color complex with copper ions in the alkaline solution.
Soluble protein was determined by the "salt extractable" nitrogen test or the modified Biuret method described by Snow (1950).