查询词典 acetic aldehyde

AIM: To explore how indole-3-acetic and horseradish peroxidase affect the apoptosis and free radicals expression of BXPC-3 cells.

目的：探讨吲哚乙酸联合辣根过氧化物酶对BXPC3细胞凋亡及自由基表达的影响。

The studies of inhibitory activity of different hydantoin ARIs substituted by acetic acid residue can greatly benefit the structure-based drug design of ARIs.Keywords aldose reductase inhibitors, fidarestat, carboxylic acid methyl, synthesis,inhibitory activity

所分析的不同海因类抑制剂用乙酸链取代后的化合物的抑制性可以为以结构为基础的ARIs药物设计提供很好的实验基础。

Six derivatives of 4-phenyl-3-phenoloxymethyl-5-mercapto-1,2,4-triazlyole were synthesized from phenoloxyacetyl hydrazide by two-steps reaction under microwave irradiation, then reacted with 2-chloroacetic acid to give six novel derivatives of 2-(3-phenoxymethyl-4-phenyl-[1,2,4]triazole-5-thio)-acetic acid.

在微波辐射条件下，芳氧乙酰肼经两步反应制得4-苯基－3-芳氧甲基－1，2，4-三唑－5-硫酮衍生物，再与氯乙酸反应得到6种尚未见文献报道的2-（3-芳氧甲基－4-苯基－1，2，4-三唑－5-硫基）乙酸衍生物。

The experimental result showed that three byproducts was formed and the optimal condition was as follows: the molar ratio of ethylene glycol, hydrogen bromide, and acetic acid was 1:1:1.3, when ethylene glycol was 1 mol, refluxed 5 h under the action of 100 mL toluene.

结果表明：较适宜的合成条件为乙二醇1 mol， n：n：n=1：1：1.3，在带水剂甲苯(100 mL)的作用下，回流反应5 h，约4 h后分两次追加0.12×2 mol醋酸酐，合成效果最好，产率可达到95%，反应副产2-溴乙醇及少量的1， 2-二溴乙烷、乙二醇二乙酸酯和二乙二醇二乙酸酯。

Bromoethyl acetate was synthesized by reacting ethylene glycol with an aqueous solution of hydrogen bromide(47%) and acetic acid(1:1:1.3) in the water-carrying agent, which formed an azeotrope with water but not with 2-bromoethyl acetate.

以乙二醇、w=47%和冰醋酸为原料，在带水剂的作用下合成了2-溴乙基乙酸酯。

Including high-purity synthetic hydrobromide, hydrogen bromide acetic acid solution, hydrogen bromide acetone \ dichloromethane solution, sodium bromide, calcium, ammonium and other inorganic bromide, Bromochloromethane second bromomethane, 1 - bromo --3 - chloropropane organic bromide.

包括高纯度合成氢溴酸、溴化氢醋酸溶液、溴化氢丙酮\二氯甲烷溶液、溴化钠、钙、铵等无机溴化物，溴氯甲烷、二溴甲烷、1-溴-3-氯丙烷等有机溴化物。

The fermentation temperature was 60℃. The major fermentation products were ethanol, acetic acid, hydrogen and carbon dioxide.

直接发酵纤维素产乙醇的初步研究、发酵于60℃下进仃，其主要产物为乙醇、乙酸、氢气和二氧化碳。

The results also indicate that the Ph stability and the concentration of N exert a great influence on the growth of C reinhardtii- se and the acetic acid is the key substance for hydrogenase induction.

综合考虑两步法产氢对细胞生长周期和细胞密度的要求以及最终厌氧诱导获得的氢酶活性，最终选择seTA培养基作为莱茵衣藻- se 产氢用培养基。

Using the length of cells' growth cycle,the density of cells and the activity of induced hydrogenase as criteria,the optimal formulation of culture medium was obtained as seTA(se -Tris Acet) which contains acetic acid as C source,higher concentration of N and stronger pH buffer system based on the se formulation.

结果发现，培养基的pH和氮素的含量是影响莱茵衣藻生长的重要因素；而培养基中醋酸根的含量则有助于提高厌氧产氢过程中衣藻的氢酶活性，从而提高其产氢量。

It can be prepared by interaction of acetic acid and sodium hydroxide in water solution.

它是一种带有醋酸气味的白色结晶粉末，易吸湿、易溶于水和乙酸。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48