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.
对苯二氨基联苯:一种淡黄色、白色或淡灰红色的晶体粉末,NH2C6H4C 6H 4NH2,用在染料和血迹检查中。
A yellowish, white, or reddish-gray crystalline powder, NH2C 6H 4C 6H 4NH 2, used in dyes and to detect blood stains.
室内采用土培法分别测定了不同浓度胺苯磺隆和不同浓度己酸二乙氨基乙醇酯(简称DA-6)对水稻生长的影响以及不同浓度胺苯磺隆处理下DA-6对水稻根生长的影响。
The paper presented the effect of ethametsulfuron and DA-6 on the growth of rice seedlings at the different concentrations in soil using bioassay methods in the room.
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.
二溴苯胺传统的合成方法是由对氨基苯磺酰胺与氢溴酸反应生成3,5 二溴4 氨基苯磺酰胺,再经水解而得。
The traditional method for 2,6-dibromoaniline synthesis is hydrolysis of 3,5-dibromo-4-aminobenzene sulfonamide produced from 4-aminobenzene sulfonamide and hydrobromic acid.
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.
阐述了合成pbo的重要单体4,6 -二氨基- 1,3 -苯二酚盐酸盐的合成方法,并对各种方法进行了比较,简述了目前该单体的防氧化方法。
The synthetic methods of the monomer 4, 6-diamino-1, 3-benzenediol dihydrochloride are reviewed and compared with each other. The current oxidation inhibition method for the monomer is outlined also.
阐述了合成pbo的重要单体4,6 -二氨基- 1,3 -苯二酚盐酸盐的合成方法,并对各种方法进行了比较,简述了目前该单体的防氧化方法。
The synthetic methods of the monomer 4, 6-diamino-1, 3-benzenediol dihydrochloride are reviewed and compared with each other. The current oxidation inhibition method for the monomer is outlined also.
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