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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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。

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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%。

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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。

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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。

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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。

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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。

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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

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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。

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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。

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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。

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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。

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