thiourea的例句大全

Diphenyl thiourea is an important intermediate of medicine and dyestuff.

二苯硫脲是重要的医药和染料的中间体.

A new process, urea-calcium cyanamide method, for producing thiourea from urea and hydrogen sulfide is proposed.

利用尿素和硫化氢等原料制备硫脲, 提出了尿素 - 氰氨化钙法新工艺.

And it was found that the best combined bleaching process it is hydrogen peroxide → thiourea dioxide.

在此基础上,进一步优化维纶基牛奶纤维双漂工艺,发现双氧水→二氧化硫脲漂白法效果最佳.

Preparation of formamidine sulphonic acid with thiourea and hydrogen peroxide by aqueous solvent process was researched.

研究了硫脲与双氧水水溶剂法制备甲脒亚磺酸的反应.

This paper made study on gold extraction by leaching copper anode mud with acidic thiourea solution.

本文研究了用酸性硫脲溶液从铜阳极泥中浸取金的方法.

Electrochemical behavior and kinetics of gold dissolution in alkaline thiourea solution have been investigated electrochemical techniques.

研究了金在碱性硫脲溶液中阳极溶解的电化学行为及动力学.

The preferred orientation of settled nickel layer didn't change with the concentration of thiourea.

另外,沉积层的择优取向不随硫脲浓度的变化而改变.

The results show that the thiourea molecules are inclined to adsorbed on the silver surface.

实验结果表明:硫脲分子倾斜吸附在银表面.

There are a quantity of heat released when preparing thiourea dioxide from thiourea and hydrogen peroxide.

双氧水氧化硫脲合成二氧化硫脲的反应是一强放热反应,副反应多,收率不高.

Thiourea or sodium thiosulfate can reduce polymer degradation in RPW solutions.

硫脲和硫代硫酸钠均可减轻污水溶液中聚合物的降解。

A new method to synthesize N, N'-diphenyl thiourea ( DPTU) from aniline and CS 2 was developed in the presence of acidic resin as catalyst under reflux temperature for 6 h with the yield of 82.7% and the selectivity of 100%.

探讨了合成二苯硫脲的新方法。以酸性树脂作催化剂在回流温度下使苯胺与CS2反应6h，二苯硫脲的收率达827%，选择性为100%。

This mechanism can also reasonably explain the fact that only molecular ionic peak of phenyl iso-thiocyanate and naphthyl iso-thiocyanate was presented in the GC/ MS spectra of diphenylurea and diphenyl thiourea.

此机理同样能合理解释二苯脲和二萘硫脲的GC/MS谱图中只出现异氰酸苯酯和异硫氰酸萘酯分子离子峰的现象。

But the GC/ MS analysis showed that it is phenyl isocyanate. This may be due to neutral loss of aniline in the cleavage of diphenyl thiourea in GC/ MS analysis.

但用GC/MS分析该晶体为异硫氰酸苯酯，这可能是在GC/MS分析过程中二苯硫脲发生了中性丢失苯胺的缘故。

Under mild conditions, at room temperature and ambient atmosphere, diphenyl thiourea could be synthesized through the reaction of aniline and CS 2 over AlCl 3 catalyst with high yield and high selectivity.

常温常压下，用AlCl3作催化剂催化苯胺和CS2进行反应，可以高收率和高选择性地得到二苯硫脲。

However, identified by melting point, HPLC/ MS/ MS, FTIR, UV and 1H NMR analyses, the pure crystal should be diphenyl thiourea.

然而，用熔点测定、HPLC/MS/MS，FTIR，UV和1H NMR等手段对此晶体进行分析，确定其为二苯硫脲。

Neutral Loss of Aniline in GC/ MS Analysis of Diphenyl Thiourea

GC/MS解析中二苯硫脲的中性丢失

Diphenyl guanidine has been prepared by using of Fe2 O3 as catalyst and70% ethanol as solvent, and simultaneously the by-product H2S is used to prepare thiourea.

本文提出了在70%乙醇溶剂中以氧化铁作为触煤合成二苯胍，同时回收副产硫化氢合成硫脲的联合制备方法。

Bismuth sulfide nanorods were synthesized in ionic liquid using bismuth nitrate and thiourea as precursor.

采用硝酸铋和硫脲为先驱原料，以离子液为反应介质，合成了硫化铋单晶纳米棒。

A method for the determination of arsenic, antimony and bismuth in high purity zinc by hydride generation-atomic fluorescence spectrometry ( HG-AFS) with thiourea-ascorbic acid-hydroxylamine hydrochloride as masking and reducing reagent has been proposed.

提出了以硫脲-抗坏血酸-盐酸羟胺作为混合还原掩蔽剂，氢化物发生-原子荧光光谱法（HG-AFS）测定高纯锌中砷、锑、铋的方法。

Nm, with ascorbic acid as a reducing reagent, thiourea as a masking reagent, iron, cobalt, copper and indium could be masked.

用抗坏血酸为还原剂，硫脲为掩蔽剂，可以掩蔽铁、钴、铜、铟。