dichloromethane的例句大全

The process conditions are studied for the synthesis of o-nitro-p-cresol using p-cresol and nitric acid in dichloromethane. The effects of reaction time, temperature, degree of dispersion and concentration of nitric acid were optimized. The yield is up to 82.3%.

考察了用对甲酚和硝酸在二氯甲烷中合成邻硝基对甲酚的工艺条件，对影响反应的因素，如分散度、反应时间、反应温度、硝酸浓度等进行了优选，产率达到了82.3%。

Natural carotene has been successfully micronized from dichloromethane solutions using CO_2 as antisolvent by the particle formation method of Solution Enhanced Dispersion by Supercritical Fluids ( SEDS).

以二氯甲烷为溶剂，超临界CO2为抗溶剂，采用超临界流体强制分散溶液技术成功地对天然胡萝卜素进行了超细化。

Note. ( 1) The dichloromethane is distilled from phosphorus pentoxide and stored over molecular sieves.

注意事项（1）二氯甲烷加入五氧化二磷蒸馏，加入分子筛储存。

Negative ion chemical ionization mass spectrometry using methane and dichloromethane as mixed reagent gas

甲烷和二氯甲烷混合反应气体的负离子化学电离质谱研究

the success of development of the depainting agent has opened a new way for the profound processing of dichloromethane in china.

该脱落剂的开发成功为我国二氯甲烷的深度加工开辟了新的途径。

a polyurethane depainting agent which uses dichloromethane as the main raw material was prepared and the optimum recipe for its secondary solvents and activators was found.

研制了以二氯甲烷为主原料的聚氨酯脱漆剂，并筛选出其中次溶剂、活化剂等的最佳配方。

the electrochemical properties of o-toluidine in 1,2-dichloromethane in the presence and the absence of hydrogen peroxide were investigated at a platinum electrode by cyclic voltammetry.

以1,2-二氯乙烷为溶剂，利用循环伏安法研究了邻甲苯胺在铂电极上的电子转移性质，并测试了H2O2存在时邻甲苯胺的循环伏安特性，探讨了电极反应机理。

results: the residual toluene and dichloromethane in three batches of cetirizine hydrochloride coincided with the requirements.

结果：3批样品中甲苯与二氯甲烷的残留量均符合规定。

dichloromethane waste gas treatment with the adsorption equipment for organic waste gas

利用活性炭纤维有机废气吸附回收装置治理二氯甲烷废气

atmospheric histories of halocarbons from analysis of antarctic firn air: methyl bromide, methyl chloride, chloroform, and dichloromethane.

从南极永久性积雪空气分析大气卤烃的历史：甲基溴化物，甲基氯化物，氯仿和二氯甲。

Antioxidant activities of six spice materials have been measured using peroxidevalue ( POV ) and acid value ( AV ) after extraction with dichloromethane.

以过氧化值及酸价为指标,评价了以二氯甲烷为溶剂的生姜等六种常用香辛料提取物的抗氧化作用.

The variation of the desorption activation energy of dichloromethane on activated carbons was discussed hardbase ( HSAB ) princi.

主要研究了金属离子改性活性炭对二 氯甲烷 脱附活化能的影响.

Methods 2-chloromethyl-oxirane in water was extracted by dichloromethane. The extraction was highly condensed. The condensate was isolated through FFAP capillary, and than was detected by hydrogen flame ionization detector.

方法水中环氧氯丙烷经二氯甲烷萃取，高倍浓缩，经FFAP大口径毛细管分离，氢焰离子化检测器检测。

TNZ in plasma and muscle tissues extracted with dichloromethane.

用二氯甲烷萃取血浆和肌肉中TNZ。