查询词典 methanol

Potassium sulfate was prepared from potassium chloride and ammonium sulfate by addition of methanol.

以氯化钾和硫酸铵为原料，以甲醇为添加溶剂制备硫酸钾。

Melamine is eluted from the SPE cartridge with 5% ammonium hydroxide / methanol, evaporated to dryness, reconstituted with internal standard and 50% acetonitrile / water, and analyzed by LC/MS/MS.

三聚氰胺使用5%的氢氧化铵/甲醇从SPE柱中洗脱，蒸发至干燥，用内标物与50%的乙腈/水重新配置成原来的浓度，通过LC/MS/MS分析。

The SPE-eluent was prepared just before use and consisted of a mixture of 2.5 ml 25% ammonium hydroxide, 2.5 ml 1.0 mg/ml methanolic ascorbic acid and 45 ml methanol.

SPE洗提液在用途之前准备了并且包括了2.5 ml 25%氢氧化铵， 2.5 ml 1.0 mg/ml methanolic抗坏血酸和45 ml混合物甲醇。

Adding methanol to the reaction system could enhance the conversion of HDA and the yield of HDU-M notably. So the ammonolysis was apt to the SN1 scheme.

反应体系中引入甲醇溶剂可显著提高反应的转化率及选择性，认为DMC胺解过程更倾向于按 SN1机制进行。

Then, rather than waiting for the thing to recharge, you could simply slip in another 1 ampoule of methanol, says Marsh.

马什说："到时，你用不着干等着充电，只要再添加 1 安瓿甲醇就行了。"

It can be mutually dissolved with water, methanol, ethanol, amyl alcohol, phenol, glycerin and so on.

乙二醇闪点为116℃，沸点为197.6℃，燃点为121℃，常温下为无色透明粘稠液体，易吸潮，与水、甲醇、乙醇、戊醇、苯酚、甘油等互溶，微溶于乙醚。

So the effect of different solvents, such as methanol, ethanol, butanol, tertiary butanol, isoamyl alcohol, tertiary amyl alcohol, diethyl ether and cyclohexane, on the reaction was explored.

在文献所报道的应用K〓CO〓作催化剂、CH〓I既作促进剂又作部分反应物的由原料甲醇与二氧化碳直接合成碳酸二甲酯工作的基础上，在体系中加入离子液体emimBr后，研究了emimBr对合成反应的影响。

The kinetics of tertamyl methyl ether synthesis using C5 fraction of FCC gasoline was studied. The molar ratio of tertiary amylene to methanol was 1.0 and the kinetic experimental data was obtained at the temperature range from 55℃ to 90℃.

研究了FCC汽油中C5馏分合成甲基叔戊基醚的宏观动力学。C5原料与甲醇摩尔比为1/1，在温度分别为55℃~90℃时反应得到了动力学实验数据。

Methods This title compound was prepared using the O-phenylene diamine and the anisaldehyde as the raw material,methanol as the solvent,and the phosphoric acid makes the oxidant.

方法本课题以邻苯二胺和对甲氧基苯甲醛为原料，在甲醇为溶剂，磷酸为催化剂的酸性条件下，一步反应制得2-(4-甲氧基苯基)苯并咪唑。

More metabolites could be detected when the TLC was carried out in system II (chloroform∶methanol=9∶1) and system III (butanol∶acetic acid∶water=4∶1∶5) with anisaldehyde test solution.

对每一株菌而言，产生最多产物的发酵培养基各不相同，为了获得尽可能多的次生代谢产物，不同菌株选用的发酵培养基不一样。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。