萃取剂

The test for the concentration and dosage of oxidizer and extractant were carried out and the optimal extraction time was selected.

对氧化剂、萃取剂的浓度及用量进行了试验，选择了最佳萃取时间。

The kinds of extractant also effected desulfurization rate .

萃取剂对脱硫率的影响也很大，乙二胺的萃取效果优于甲醇的。

Though it is early that people started research in this area in our country, copper hydrometallurgy technology is not popularized for various reasons. The variety of extractant is limited and cant meet the demand for many kinds of different extracts.

由于种种原因，我国虽然在这方面研究起步较早，但是并没有得到大力的推广，萃取剂的品种有限，不能满足多种不同浸出液的萃取要求。

The mechanism of the microwave-assisted extraction was studied by transmission electronic micrography.

讨论了不同萃取剂、溶剂浓度、萃取时间和微波功率等对提取率的影响。

The result shows:(1) The value of pH of solution should be adjusted with phosphoric acid and sulphurous acid (1:2) at extracting pectin from apple pomace,and the pectin with the best color and quality was obtained.

研究结果表明：①用本试验所用的果渣提取果胶，应选用H_3PO_4和H_2SO_3混合酸(1：2)作为萃取剂调节溶液的pH值，所得粗果胶无论是产率还是色泽都优于其它酸萃取的效果。

This paper reports the use of impregnated polyurethane foam for enriching trace thorium from natural water.

本文研究了用协同萃取剂泡沫塑料从天然水中萃取微量钍。

The extraction performance of Zn from HCl medium with a new kind of carboxylic extractant, ammonized sec-octylphenoxy acetic (CA12) and ammonization of the extractant have been studied.

研究了一种新型萃取剂仲辛基苯氧乙酸(CA12)的皂化以及从盐酸介质中萃取Zn的性能。

The extraction of trace amounts of Hg in amedium of HCl with trioctylmethylammonium chloride in dimethylbenzene and the subsequent spectrophorometric determination is described.

研究了以季胺盐即氯化三辛基甲基胺的二甲苯溶液为萃取剂，在HCl介质中痕量汞的萃取和分光光度法测定。

It showed that the yield of hydroxyacetic acid reached above 99.5%, the extracting efficiency was over 97%,and the product with purity of more than 96% was obtained. Extractant and solvent also can be reused.

实验结果表明：羟基乙酸合成的反应产率达99.5%以上，羟基乙酸萃取率达97%以上，最终收率达96%，萃取剂与溶剂均可循环使用。

The compounds which contain sulfur in the residual oil were oxidized into sulphone and sulphoxide, which were extraced by using the DMF as the extraction agent.

渣油中的含硫化合物被氧化成砜和亚砜，用DMF为萃取剂萃取砜和亚砜。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失