建立了对二甲氨基苯甲醛法和亚硝酸盐——格里斯试剂法两种对牛奶中掺入的尿素的快速检测方法。
In this paper, two rapid detection methods for carbamide in milk, namely p-dimethylaminobezaldehyde method and Nitrite-Griess method, were developed.
对二甲氨基苯甲醛同时亦与氨基胍重碳酸盐反应，生成更为稳定的化合物，而使该橙色产物分解而褪色。
However, 2 could also react with 1 simultaneously in the same reaction system, the product was more stable, and that made the orange compound decomposed and faded.
由邻甲苯胺和甲醛水溶液反应合成得到了高纯度的3，3 -二甲基-4，4 -二氨基二苯甲烷（MDT），并对其性能进行了表征。
The polyimide monomer of 3,3 -dimethyl-4,4 -diaminodiphenylmethane(MDT)was synthesized through the reaction between O-methyl aniline and aqueous formaldehyde solution.
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