查询词典 solvent

Both methods are time- and solvent-consuming during the processing. In this study, headspace solid-phase dynamic extraction was applied to exame 13 organochlorine pesticides (γ-HCH、heptachlor、δ-HCH、aldrin、heptachlor epoxide、o,p'-DDE、α-endosulfan、p,p'-DDE、dieldrin、endrin、o,p'-DDT、β-endosulfan、p,p'-DDT) in water and soils. That was a rapid, solvent free and no clean-up procedures technology.

本研究以近年发展之顶空微针动态抽取技术(Headspace solid-phase dynamic extraction， HS-SPDE)进行水及土壤中十三种有机氯农药(γ-HCH、heptachlor、δ-HCH、aldrin、heptachlor epoxide、o，p'-DDE、α-endosulfan、p，p'-DDE、dieldrin、endrin、o，p'-DDT、β-endosulfan、p，p'-DDT)检测方法建立，此技术为一无需溶剂萃取，不需净化之快速检测方法。

The acid behaves as a monomerized solute in non inert solvent and dimerized in inert solvent.

因此 ，从发酵液或工业废水中分离提取有机酸是一重要的研究课题。

The residual oil content of de-oil grapeseed meal reached 2% after 6No solvent extracting and under conditions, seed-solvent ratio of 1:1, extraction temperature 50℃ and extraction time 120 minutes.

葡萄籽经破碎、蒸炒后用6号溶剂油在溶剂比1：1、浸出温度50℃、逆流浸泡120分钟的条件下，可使粕中残油率降至2％。

Solvent extraction usually gives high yields of aroma compounds with easy operation; but there are many disadvantages, such as the loss of more volatile compounds in the process of solvent removal, the contamination of GC due to high-boiling and non-volatile materials in extracts.

溶剂萃取操作简单，香味化合物的收率高；但存在许多缺点，如除去溶剂的过程可能会造成许多挥发性成分的损失，萃取物中通常含有高沸点以及非挥发性的成分，对GC仪器造成损害等。

Co., use solvent Zai, if you have a small number of high-boiling solvent, can also cause residual solvents are too high, or even to cause business card printing and membership card making products has serious peculiar smell

查抄用于油不朱的溶剂和制卡和会员卡制作所搁置的溶剂是否纯真，如果有多度的矮沸不面溶剂，也不定变不败溶剂残留度过矮，甚至导致制卡和会员卡制作品活命惨重的异味

Companies are producing various specifications heptane, n-heptane, iso-octane, n-hexane, and environmental protection-type special solvent oil, 120 # solvent oil, industrial products and reagents, welcome customers at home and abroad came to negotiate and buy.

公司现生产各种规格的庚烷、正庚烷、异辛烷、正已烷、环保型特种溶剂油、120#溶剂油等工业品和试剂，欢迎国内外客户前来洽谈、选购。

Maize yellow pigment was extracted from corn gluten taking the rate of extraction as index,and according to the nature of the maize yellow pigment ,the experiment research of the mixed solvent extraction had been made in the basic of single solvent extraction experiment.

以玉米蛋白粉为原料，玉米黄色素的提取率为指标，根据玉米黄色素的性质，在单一溶剂提取实验的基础上进行了混合溶剂的提取实验研究。

To synthesize aryl pyrimidines by taking benzene, methyl benzene ,acetic ether,1,2-dichloroethane as solvent,the yield and purity of the product are high by taking methyl benzene as solvent.

分别选用苯、甲苯、乙酸乙酯、二氯乙烷作为溶剂合成桂皮酰哌啶，结果表明甲苯作为溶剂时产品纯度高，收率高，可用于大规模生产。

After peltate yam is water washed, crushed, fermented and acid hydrolyxed, the solid matter and acid water solution are separated via centrifugation, the solid matter is extracted with organic solvent to make saponin extracted into organic phase, the organic phase is back extracted to eliminate other components, the organic solvent is distillation recovered for reuse and precipitation separated saponin is stoved to obtain product.

黄姜经水洗净、粉碎、发酵和加酸水解后，离心分离固体物和酸性水溶液，用一种有机溶剂萃取固体物，皂素被萃入有机相中，经返萃取去除其它成分后，将有机溶剂蒸馏回收，重用，沉淀析出的即为皂素，经烘干即得产品。

Sucrose stearates with the different proportion of monoesters were prepared by reacting sucrose and alkyl searate in the presence of alkali catalyst by "methanol process","low soap solvent-free process"and"medium soap solvent-free microemulsion process".

在碱性催化剂存在下，以蔗糖、硬脂酸酯为原料，采用甲醇法、低皂无溶剂法及中皂无溶剂微乳法合成了一系列单酯含量不同的硬脂酸蔗糖酯。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷