查询词典 methylglyoxal

In recent years, the demand for methylglyoxal increased with the rise of the demand for imidazole and furanone.

近年来随着咪唑以及呋喃酮等香料需求的增加，丙酮醛的需求也在逐步升高。

As an important organic intermediate, methylglyoxal is widely used in producing imidazole and furanone, and also has important applications in medicine, agricultural pesticide, textile and so on.

丙酮醛是一种重要的有机合成中间体，被广泛应用于生产药物中间体4-甲基咪唑和食品增香剂呋喃酮，并在医药、农药、纺织等领域也有很重要的应用。

In an article "Be Honest With Consumers", Manuka Health chief executive Kerry Paul responds to criticism of methylglyoxal measurement by the developer of the UMF test, Professor Peter Molan of the University of Waikato.

在一篇题为《对消费者要诚实》的文章中，蜜纽康纽西兰有限公司总裁Kerry Paul先生对UMF 测试手段的开发者、怀卡托大学的Peter Molan教授对用甲基乙二酸含量作为测量标准所作的批评回应道

So the catalysts for producing methylglyoxal from 1,2-propane glycol were studied in this thesis.

因此本文对丙二醇氧化制备丙酮醛的催化剂进行了研究。

The technology of producing methylglyoxal in our country was developed in recent years, but its capacity is small, and the catalyst is very expensive too.

国内丙酮醛的生产起步晚，规模较小，并且所需催化剂比较昂贵。

The ozonolysis of isoprene has a significant contribution to atmospheric carbonyls, especially to formaldehyde and methylglyoxal.

异戊二烯臭氧氧化反应对大气羰基化合物特别是甲醛和丙酮醛具有重要贡献。

In this paper, the structures of methylglyoxal and 1,1-dimethoxy-2-propanone are identified by GC-MS, NMR and the standard samples. The reaction conditions of catalyst oxidation and acetalation according to reaction mechanisms are discussed.

本文运用质谱、核磁和标样确定了中间体丙酮醛及其产物1，1-二甲氧基丙酮的结构，并结合反应机理对催化氧化和醛保护的反应工艺条件进行了探索。

We also found an addiction metabolite (M5) of metformin with methylglyoxal in the perfused rat liver.

此外，我们并发现Metformin与内生性Methylglyoxal加合之代谢产物。

Methylglyoxal is a toxic endogenous substance known to react with proteins to form advanced glycation endproducts, which accumulated in the body during aging. Hyperglycemic can accelerate the accumulation of AGEs, and it has been link to the development of diabetic complications.

由於Methylglyoxal在体内会形成高阶糖化终产物，而这些终产物在老化过程中会大量蓄积且高血糖会加速其蓄积，而与糖尿病晚期的并发症有相当的关联性。

Secondly, the silver based catalysts modified by phosphorus, zirconium, zinc, potassium and so on using molecular sieve as carrier, which were produced by ion-exchange method, had also good catalytic performance for 1,2-propane glycol oxidation to methylglyoxal. The conversion of 1,2-propane glycol and the selectivity of methylglyoxal were both high, and the impurity such as formaldehyde and acetaldehyde in the product is little. At the condition of the temperature 300 ℃, the molar ratio of oxygen to 1,2-propane glycol 1.7:1, the space velocity 6000h~(-1), and the concentration of 1,2-propane glycol 70wt%, the conversion of 1,2-propane glycol is 90% and the selectivity of methylglyoxal is 45% on the Ag-P catalyst.

其次对采用离子交换法制备的负载在分子筛上的银系催化剂进行了研究，发现此催化剂在助催化剂磷、锆、锌、钾等的作用下对丙二醇的低温氧化脱氢具有很高的活性，可以得到较好的丙酮醛的收率，并且产物中的甲醛、乙醛副产物的量比较低；经过对Ag-P催化剂上反应条件的考察，发现当温度为300℃、氧醇比1.7：1、空速6000h~(-1)、丙二醇浓度为70wt%时，丙二醇的转化率为90%，丙酮醛的选择性为45%。

Now, however, all children continue in "comprehensive" schools, and the eleven-plus determines which courses of study the child will follow.

然而现在，所有的孩子都要在综合学校继续学习，所以这次考试只是决定他们将要学习哪些课程。

Cultivatable land , and led to a general recognition that development must not be carried at the cost of agriculture .

城区的迅速扩大在很多情况下侵占了宝贵的可耕地，使人们普遍认识到发展不能以牺牲农业为代价。