biuret reaction

英

美

缩二脲反应；双缩脲反应

Its ninhydrin reaction was negative, but after acid hydrolysis, its ninhydrin reaction and biuret reaction were positive.
茚三酮反应呈阴性，用酸水解后茚三酮反应和双缩脲反应呈阳性。
Polyisocyanate with biuret structure was produced by the reaction of crystalline sodium sulfate with hexamethylene diisocyanate ( HDI). Continuous extraction apparatus was improved to separate the free HDI monomer in the mixture.
本文用结晶硫酸钠和HDI合成了具有缩二脲结构的多异氰酸酯，改进了连续萃取装置进行后处理，分离出未反应的HDI单体。
It was very important to establish the fast method to determine the peptide content in the milk powder, and it was the first time to finish the method by using Biuret Reaction in this paper.
在进行工艺研究之前，建立准确快速的测定奶粉中肽含量的方法，是首要的工作，也是本课题的核心内容之一，同时是指导生产、制定企业标准的必要步骤。
Syntheses of the Copper Complexes of Biuret by Solid Phase Reaction with Microwave Irradiation
微波辐射固相法合成缩二脲铜配合物
Results The results of the biuret reaction and ninhydrin reaction were positive.
结果茚三酮反应和双缩脲反应呈阳性，海生素注射液中氮含量不低于0.4mg。