查询词典 methanol

A mixed solutizer (volume ratio of methanol: MTBE: DMC: isopropyl alcohol: cresols= 4:2:1:1:1) was selected and used with lithium isocaprylate in a mass ratio of 85:15 to form a complex antiknock additive ensuring the fully solution of lithium isocaprylate in gasoline.

当混合增溶剂 [V∶V∶V∶V∶V=4∶2∶1∶1∶1]和异辛酸锂的质量分数分别为85%和15%时异辛酸锂可以与汽油互溶。

Based on the above reaction principle, a novel method, chromotropic acid spectrophotography, was established to determine methanol content during fermentation of Pichia Pastoris.

利用该反应原理建立毕赤酵母发酵过程中检测甲醇含量的变色酸分光光度法。

Objectv To study the chemical of Stachys geobombycis by priliminary test Methods some researches were made of the extracted mixture for Stachys geobombycis from acidic ethanol,purified water and methanol by using the law of test tube and round filter paper.

目的 通过预试验，初步了解地蚕的化学成分。

It showed that, compared with other catalysts, SO(superscript 2- subscript 4)/TiO2-ZrO2 was more active to bring about more than 95% conversion rate of stillingia oil under the transesterification conditions of 150℃, molar ratio of methanol to oil 12:1, catalyst amount 5% and reaction time 6h.

结果表明，催化剂SO(上标 2-下标 4)/TiO2-ZrO2表现出了较高的催化活性，SO(上标 2-下标 4)/TiO2-ZrO2催化的最佳酯交换反应条件为：反应温度150℃，醇油摩尔比12：1，催化剂用量5%，反应时间6h，此时乌桕籽油的醋化率超过95%，且催化剂重复和再生使用效果良好。

Objective: To elucidate the chemical constituents and anti-inflammatory activity of the methanol/chloroform extracts from seeds and seedlings of Suaeda salsa L.

目的 ：阐明盐地碱蓬幼苗和种子氯仿/甲醇提取物的化学组成及其抗炎作用。

In the first part of the dissertation,the basic knowledge of methanol market、toluene oxidation technology、the clear electrochemical organic synthesis technology and the solid superacid were introduced and reviewed.

本文的第一部分对甲醇的市场概况、甲苯催化氧化技术概况、清洁的电化学有机合成技术概况以及固体超强酸概况进行了文献综述。

By using isopropyl benzene as the internal standard material, using Agilent 1100 HPLC, using methanol-acetonitrile-water as mobile phase ,using three-component grade elution program, the components that contain benzene such as TALD,PT,4-CBA,TA,BA,PX and internal standard material isopropyl benzene in liquid phase product was analysed. Shimazu6A GC was used to analyse the solvent acetic acid and internal standard material isopropyl benzne in liquid phase.

以异丙苯为内标物，应用Agilent1100高效液相色谱仪，用甲醇－乙腈－水为流动相，采用三元梯度洗脱程序分析液相产物中的含苯环组分对甲基苯甲醛、对甲基苯甲酸、对羧基苯甲醛、对苯二甲酸、苯甲酸、对二甲苯和内标物异丙苯，应用Shimazu6A气相色谱仪分析液相中的溶剂醋酸和内标物异丙苯。

Highly toxi c solvents benzene,tetrachloromethane,methanol were replaced by toluene,1,2-di c hloroethane,ethanol in the course of reaction and purification.

甲基 2 ，1，3 苯并噻二唑的溴化改在低毒性的 1，2 二氯乙烷中进行，革除了高毒性的四氯化碳。

Two organosulfonate complexes, [M22]·H2O (M=Cd 1, M=Pb 2), were obtained from the reaction of 1,10-phenanthroline, sodium 4-aminonaphthalene-1-sulfonate tetrahydrate and Cd2·2H2O or Pb (NO3)2 in a mixed solvent of water and methanol at 25 ℃. The compounds were characterized by elemental analysis, IR, and X-ray diffraction single crystal structure analyses.

合成了2个新型有机磺酸配合物，[Cd22]·H2O(1)和[Pb22]·H2O(2)(phen=1，10-邻菲咯啉，ans=4-氨基-1-萘磺酸根)，通过元素分析、红外光谱等对配合物进了表征，用X-射线单晶衍射方法测定了配合物的单晶结构。

Pyrolytic methylation of G. biloba leaves in the injector at 300℃ in the presence of an organic alkali, tetramethylammonium hydroxide (TMAH, 25% methanol), allowed quantitative analysis of ginkgolic acids as their corresponding methyl derivatives.

银杏叶样品与衍生化试剂四甲基氢氧化铵（TMAH，25%甲醇溶液）同时进样，在300℃的进样口瞬间生成了银杏酸甲基衍生物，银杏叶中6种银杏酸得到很好的分离。

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。