缩二脲

This paper expounds its physical properties , application, process and present standardization situation, and approves that biuret has broad development prospects.

对尿素生产过程中产生的"有毒物质"--缩二脲的物性、用途、生产工艺及标准化现状等方面进行了论述，阐明了生产缩二脲具有广阔发展前景的观点。

The content of biuret by colorimetry and the total content of nitrogen in urea and biuret were mensurated.

摘 要：对固相法和液相法合成氰尿酸的方法进行比较，采用比色法测定缩二脲含量，用甲醛测定尿素、缩二脲的总氮量，由缩二脲的含量、总氮量推算出尿素的含量及产品的纯度，从而说明液相法的优势。

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

The spraying granulation process of a 50 kt/a urea melt facility is described, including the control of biuret content, some key problems in the design of drying system and other equipment.

介绍5万t/a熔融尿素喷浆造粒装置的工艺，阐述固体尿素熔融过程中缩二脲的控制、干燥系统设计以及装置设计的一些注意事项。

The process, product features and biuret control in production of high analysis urea-based compound fertilizer are described, with the slow release ability of the product discussed.

摘 要］阐述高浓度尿基复合肥生产工艺、产品特点、生产过程中对缩二脲控制及其对产品缓释性能的研究。

It was found out that the evaporator shutter and the blocking of top separator by the biuret were the direct reasons for standard exceeding.

分析尿素装置水解解吸工艺冷凝液超标的原因，确认蒸发器百叶窗及顶部分离器缩二脲堵塞是造成此次工艺冷凝液超标的直接原因，并据此提出防范措施，减少同类事故的发生。

With the sample dissolved in 0.1NNaOH solution and bovine serum albumin used as the standard protein, the Percentage of proteins in the sample is given by spectrophotometric method with biuret reagent.

该法使用0.1NNaOH溶液溶解样品，以大牛血清白蛋白作为标准蛋白质，利用缩二脲试剂分光光度测定样品中的蛋白质含量。

HDI's molecular structure is a special saturated straight chain and it has highly unsaturated double bonds.It has such very lively and chemical properties that can be used to form polyurea with water. And it also reacts with polyurethane to form polyol, reacts with amine to biuret.

己二异氰酸酯分子具有特殊的直链饱和结构和含有高度不饱和双键的异氰酸酯基团，化学性质非常活泼，能够与水生成聚二脲，与多元醇反应生成聚胺酯，与胺反应生成缩二脲。

In this thesis, two series compounds of thiadiazole (2a~2f) and benzothiazole (5a~5f) were synthesized by using the reagent of iodobenzene diacetate. We also bound the iodobenzene diacetate reagent to the resin and applied it to synthesize thiadiazole and benzothiazole compounds.

本文利用二醋酸碘苯试剂分别与1-芳甲酰基-5-芳基-2-硫代缩二脲及1-芳甲酰基-3-芳基硫脲反应合成了噻二唑(2a~2f)和苯并噻唑(5a~5i)两个系列的杂环衍生物，并通过把二醋酸碘苯负载在高分子上合成了一类新型的固相氧化剂，同时考查了该固相氧化剂在噻二唑，苯并噻唑类化合物合成中的应用以及该固相氧化剂的循环使用。

With a high accuracy, the biuret in compound fertilizer is determined from the color reaction between biuret and copper by copper double salt spectrophotometry, meanwhile the remove of PO43-,Ca2+, Mg2+and NH3 interferences is described without other and new interfering matters.

利用缩二脲铜的色泽反应，采用铜复盐分光光度法测定复合肥中的缩二脲，并介绍除去PO43-，Ca2+，Mg2+，NH3干扰的方法，并且在此过程中不能引入新的干扰物质。该方法精密度较好。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。