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1·A reversed - phase HPLC method was established to determine the biuret content in urea.

建立一种测定尿素中缩二脲含量的反相高效液相色谱(HPLC)方法。

2·The analysis method for biuret content in long-efficacy urea using hydroquinone as an additive is studied and tested.

本文介绍了以对苯二酚为添加剂的缓效尿素中缩二脲含量分析方法的试验研究情况。

3·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。

4·Objective To establish a kind of rapid and simple biuret method for measuring cerebrospinal fluid protein of automatic analyser.

目的在全自动分析仪上建立一种快速简便的脑脊液蛋白双缩脲测定法。

5·Methods for the modification of isocyanates include process of urethane, dimerization, trimerization, biuret, carbodiimide, and blocking reaction, etc.

异氰酸酯的改性方法包括氨酯改性、二聚改性、三聚改性、缩二脲改性、碳化二亚胺改性和封闭改性等。

6·However these troubles of concentrated urea liquor crystallizing and blocking pipe, as well as urea changing into biuret at high temperature should be avoided.

但在生产中要妥善解决尿素浓溶液易结晶堵塞管道以及尿素在高温下易生成缩二脲的问题。

7·Total solvable peptide content in the fermented fishmeal was determined by using the biuret method, and polypeptide in the precipitate by using Kjeldahl method.

用双缩脲反应法可以测出发酵鱼粉中水溶性总肽的含量，用凯氏定氮法可以测出被沉淀的多肽的含量，从而可以计算出发酵鱼粉中寡肽的含量。

8·In the research, I analyzed the influence on crops caused by different biuret concentrations in compound fertilizers, using pattern of solution culture and potted.

采用水培和盆栽法，研究了复混肥中不同含量的缩二脲对作物生长的影响。

9·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.

球蛋白在半饱和硫酸铵溶液中即可析出，而清蛋白需在饱和硫酸铵溶液中才能析出。

10·Methods Biuret method was used to measure the TP with different concentration of bilirubin. Results TP with adding bilirubin in serum was higher than TP without adding bilirubin in serum.

方法采用双缩脲法，分别测定加入一定浓度的胆红素的血清总蛋白值和加入不同浓度的胆红素的血清总蛋白值。

缩二脲

1·Methods for the modification of isocyanates include process of urethane, dimerization, trimerization, biuret, carbodiimide, and blocking reaction, etc.

异氰酸酯的改性方法包括氨酯改性、二聚改性、三聚改性、缩二脲改性、碳化二亚胺改性和封闭改性等。

双缩脲

1·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。