Biuret


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Related to Biuret: Biuret test, Biuret reagent

Bi´u`ret


n.1.(Chem.) A white, crystalline, nitrogenous substance, C2O2N3H5, formed by heating urea. It is intermediate between urea and cyanuric acid.
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Biuret was decomposed faster in the sandy loam soil than in the silt loam soil.
The major side reactions are dimerization, trimerization, and carbodiimide, biuret, and allophanate formation (Fig.
Key chemistries for polyurethane formation will be examined, including primary reactions (isocyanate/polyol); isocyanate/water (isocyanate amine); secondary reactions (biuret, allophanate and trimer); and other less common reactions.
Con la prueba t de Student se efectuo un analisis de comparacion de medias con muestras independientes de contenido de proteina en vitelo y albumen, para determinar si existian diferencias en los valores obtenidos por los metodos de Kjeldhal y de Biuret.
While networks prepared with an excess of hydroxyl groups are stable, networks in which isocyanate groups are in excess have a more complicated structure because of the possible side reactions (additional crosslinking due to the formation of allophanate, biuret, or isocyanurate).
Leaf-burn is commonly attributed to urea, but this burning is actually caused by an impurity called "biuret" in the urea most commonly supplied for agricultural use.
Filters were homogenized with 5 mL Biuret reagent in a glass mortar and pestle, then transferred into 10 mL graduated glass centrifuged tubes and 0.14 mL of deionized water added.
Total protein was determined by Biuret method using Total Protein Kit from Crest Biosystems (Doumas, 1975), Albumin by BCG method using Albumin Kit from Crest Biosystems (Doumas, 1971) and Urea by Diacetylmonoxime (DAM) method using Urea Kit from Span Diagnostics ltd (Wybenga, 1971).
Biuret oligomers and polymers of biologically active primary aliphatic amines, J Polym Sci., Polym Chem.
Biuret reagent was prepared in a two-step procedure by first dissolving 1 g KI, 240 mg CuS[0.sub.4], 3.76 g NaOH, and 24 g NaK tartrate separately in deionized water.
El contenido proteico del sobrenadante fue determinado por el metodo de Biuret (Robinson y Hodgen, 1940).