biuret reaction

基本解釋

Its ninhydrin reaction was negative, but after acid hydrolysis, its ninhydrin reaction and biuret reaction were positive.
茚三酮反應呈陰性，用酸水解后茚三酮反應和雙縮脲反應呈陽性。
Methods for the modification of isocyanates include process of urethane, dimerization, trimerization, biuret, carbodiimide, and blocking reaction, etc.
異氰酸酯的改性方法包括氨酯改性、二聚改性、三聚改性、縮二脲改性、碳化二亞胺改性和封閉改性等。
The precipitation is egg albumin. We can take little precipitation (about matchhead size) in 1ml of distilled water, observe whether it is dissolved, identify by biuret reaction.
球蛋白在半飽和硫酸銨溶液中即可析出，而清蛋白需在飽和硫酸銨溶液中才能析出。
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