查询词典 precipitant

In the process of preparation of support, ammonium carbonate was found to be a better precipitant than ammonium hydroxide.

在此基础上研究了密偶催化剂的单一反应，得出各个组分对HC转化性能的影响规律，并且初步探索了NO抑制烷烃转化的机理。

Using magnesium salt as a precipitant in the treatment of wastewater containing phosphate and ammonium can remove both of them resulting in the formation of magnesium ammonium phosphate.

利用镁盐和废水中的氮、磷生成白色的磷酸铵镁沉淀，可以实现废水中氮磷的脱除。

Nanosized titania particles consisting of anatase, rutile and brookite phases were synthesized under solvothermal conditions with different alcohols as solvents, hexamethylene tetramine as precipitant as well as precursor of titanium trichloride.

采用不同的醇溶剂，以六亚甲基四胺为沉淀剂，以TiCl3为前驱体，通过溶剂热的方法控制合成出纳米级的锐钛矿型、金红石型和板钛矿型的二氧化钛。

Failure is not discreditable, it is one kind can let a person the source of the motivation with precipitant burn one's boats.

失败不是耻辱，是一种可以让人破釜沉舟勇往直前的动力之源。

Crystallized sulfuric salt of SAM was obtained by centrifuging the precipitant at 3000 rpm after adding six times the volume of absolute methanol to the decolorant liquid with a final step of freezing evaporation.

确定了分离纯化SAM的最优条件是：在pH值5.0时，含SAM浓度为3.0 g/L的上柱液，以6 L/h的流速，过装填D152树脂的离子交换柱(φ50 mm×1500 mm)后以去离子水和醋酸洗脱除杂，再用9 L到15 L浓度为50 mmol/L的硫酸以6 L/h的流速洗脱，可以分离得到纯度较高的SAM粗品。

The particle size of complexes increased with increasing concentrations of precipitant and decreasing amount of dispersant.

没食子酸的浓度降低和分散剂用量增加均使产物的粒子减小。

METHODS: Using Gel chromotography, onionskin analysis and alcohol precipitant method to separate between protein and amino acid in liquor extract of Lingyangjiao Sai.

用凝胶色谱法，透析法和乙醇沉淀法对羚羊角塞水提液中蛋白质、氨基酸等进行分离。

Organic solvents can be utilized as a primary precipitant, as a secondary precipitant in the presence of salt or polymer, or as additives.

这些有机溶剂可以作为主要的沉淀剂，也可以在盐和多聚物存在时作为辅助沉淀剂，还可以作为溶液的添加剂。

The results showed that the location of the hot spots was variable,which was related to the precipitant of calcium sulphate,and the hot spots often existed near the interfaces between the solution and air or the precipitant.

研究结果表明：在加热过程中，随反应的进行，热点的位置是在不断变化的，且热点常出现在物质分相界面附近。

Specific contents and main conclusions are shown as follows:(1) The influence of precipitant on the properties of YAG:Ce phosphor was investigated. The precursor has good dispersity, when selecting ammonia hydrocarbonate as precipitant.

主要研究内容及结论如下：(1)研究了沉淀剂对前驱体制备的影响，结果表明：碳酸氢铵作沉淀剂制备的前驱体分散性好，煅烧过程中直接转变为YAG相，没有杂相生成。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。