查询词典 methanol

Second, the process of synthesis of dimethyl-2, 6- naphthalene dicaboxylate from esterification of 2, 6-naphthalene dicarboxylic acid by methanol was researched and developed.

第二、研究开发了2，6-NDCA甲酯化反应的工艺过程。

The model is examined with the simulation for absorption of H_2S and CO_2 with the solution of diethanolamine and methanol io industrial columns.

探讨了模型的解法，并用二乙醇胺和甲醇溶液吸收H＿2S和CO＿2的工厂操作实测数据对模型进行了验证。

The result shows:In presence of N 2 and in vacuum the new alkanolamides 1∶1 5 type are prepared in high yield by diethanolamine with fatty acid methyester,which is made by reacting methanol with rice bran oil or cotton seed oil.

研究表明，用棉油或米糠油和甲醇反应制得脂肪酸甲酯，然后在氮气保护真空条件下，使脂肪酸甲酯和二乙醇胺脱醇缩合，可高产地制得高活性1∶15型的新型烷醇酰胺。

Methods: water decocting method for extracting method, ether as extraction solvent with high performance liquid chromatography, as the means, to test content of methanol 0-3 % diethylamine (73:27) as mobile phase, 242nm detected wavelength, according to the packing: Hypersil BOS C18 5 muon m size: 6 mm (4): 25 mm, standard curve basic linear, precision, accuracy, good stability and.

以水煎煮法作为提取方法，乙醚作为萃取溶剂，以高效液相色谱作为含量检测的手段，以甲醇-0。 3 %二乙胺(73∶27)作为流动相，检测波长242nm，依利特填料：Hypersil BOS C18 5μm 尺寸：4。 6 mm ×250 mm ，结果：标准曲线基本呈线性，精密度，稳定性和准确度良好。

The mobile phase consisted of 30mmol/L sodium dihydroxy phosphate solution – methanol (90:10, v/v).

然后用液相色谱-电化学检测器检测固相萃取柱的洗脱液。

After the global financial crisis on September 2008,China's methanol industry abruptly put up the seriously disproportionable surplus.

2008年9月国际金融危机后，我国的甲醇行业突显出严重结构性过剩问题。

The antimicrobial test and researched was done on wide distillation of different solvents on Terpenoid, polarity separation of ethanol distillable substance, thin layer chromatography of different polarities and distillation of amylase. The results showed that the active substance distilled by 95% ethanol and V methanol: toluene=3:1 had stronger antimicrobial activity on Agaricus blazei Murrill. The antimicrobial activity of ethyl acetate was stronger than wide distilling substance with ethanol, but the water part has not antimicrobial effect. Two straps of ethyl acetate phase（Rf0.57、Rf0.63）(0.1g/ml)had stronger antimicrobial activity on Agaricus blazei Murrill, the antimicrobial zone on Pseudomonas was 19.3mm. The bacteriostatic activity of chromatography strap of water phase was rather weaker, the water solution (0.5g/g) of amylase had better effect on pathogenic fungus of Agaricus blazei Murrill, its antimicrobial zone on Aspergillus niger, Citrinin, Trichoderma viride were 10.8 mm, 7.9 mm, 5.3 mm.

通过对日本凹顶藻以不同溶剂的粗提、乙醇提取物的极性分离、不同极性的薄层层析和多糖的提取，进行抗菌试验的研究，发现95%乙醇和V甲醇：甲苯为3∶1的提取的活性物质具有较强的抗姬松茸的病原细菌活性，乙酸乙酯相对病原细菌的抑菌强于乙醇的粗提物，而水相基本无抑菌效果，乙酸乙酯相的两个带（Rf0.57、Rf0.63）浓度为0.1g/ml具有较强抗姬松茸病原细菌的活性，对假单孢杆菌抑菌圈达到19.3mm，水相层析带的抑菌活性较弱，多糖的粗提物配成0.25g/g的水溶液对姬松茸病原真菌有较好的抑菌效果对黑曲霉、桔青霉和绿色木霉的抑菌圈分别达到10.8 mm、7.9 mm、5.3 mm。

Our company is mainly engaged in chemical raw materials trading, the company mainly engaged in: toluene, xylene, mesitylene, durene, 6 # 120 # 200 # solvent, ethyl acetate, butyl acetate, acetone, butanone, cyclohexanone, isophorone, MIBK, isopropyl alcohol, isobutyl alcohol, butanol, mixed alcohols, methanol, ethanol, ethylene glycol, diethylene glycol, diacetone alcohol, Anti-White Water, CAC, n-hexane, dichloromethane, trichloro-B, DMF, 5 # 10 # 15 # white mineral oil, lubricating oil, sewing machine oil, as well as high-pressure polyethylene, linear polyethylene, low-pressure polyethylene, polypropylene, rubber and other chemical raw materials.

我公司主要从事化工原料贸易，公司主要经营：甲苯、二甲苯、三甲苯、四甲苯、6# 120# 200#溶剂、醋酸乙酯、醋酸丁酯、丙酮、丁酮、环已酮、异佛尔酮、MIBK、异丙醇、异丁醇、正丁醇、混丙醇、甲醇、乙醇、乙二醇、二甘醇、二丙酮醇、防白水、CAC、正已烷、二氯甲烷、三氯乙、DMF、5# 10# 15#白矿油、润滑油、针车油以及高压聚乙烯、线性聚乙烯、低压聚乙烯、聚丙烯、橡胶等各种化工原料。

The results showed that the electrocatalytic activity for methanol oxidation influenced by post treated temperature.

结果表明Pt-TiO2/C催化剂对甲醇在酸性溶液中的电催化氧化活性受催化剂制备的后处理温度影响。

The methods of preserving eleostearic acid were studied, adopting content of eleostearic acid as index. Eleostearic acid was esterificated with BF3 in methanol. The content of eleostearic acid was determined by gas chromatography, and the structure is studied by infrared spectroscopy.

初步研究了桐油酸的保存方法，以α-桐油酸含量为指标，将桐油酸与三氟化硼－甲醇溶液进行甲醋化，采用气相色语法检测桐油酸含量，并用红外光语扫描结构。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。