查询词典 ion exchange

The results show that the fiber has features of being fast and larger thiocyanate ion exchange capacity and easy regeneration.

实验结果表明，该离子交换纤维对硫氰酸根离子具有交换速度快、交换量大、再生处理便利和重现性好等优点。

In this paper,the effects of pH,concentration of buffer and triethylamine in mobile phase on chromatographic behavior of oxymatrine,sophoridine and matrine were studied by using ion exchange chromatography and their mechanisms were discussed.

采用离子交换色谱法，以氧化苦参碱、槐定碱、苦参碱3种生物碱为对象，研究了流动相pH、缓冲液浓度及三乙胺加入量等色谱条件对生物碱色谱行为的影响，并探讨了其作用机制。

The invention aims at the special physicochemical properties of boletic acid, when rhizopus oryzae free cell is utilized to ferment, the invention adopts a hollow fiber ultrafilter membrane, concentration by nanofiltration and ion exchange adsorption coupling technique to separate and extract boletic acid.

本发明针对富马酸独特的理化性质，在利用米根霉游离细胞发酵的同时，采用中空纤维超滤膜、纳滤浓缩和离子交换吸附耦合技术分离提取富马酸。

A whole house unit or a counter filter that uses carbon filtration and ion exchange are ideal for getting rid of harmful chemicals in water.

一个整体房子单位或使用碳滤清和离子交换的逆过滤器对摆脱有害的化学制品是理想的在水中。

Though seawater contains only three parts per billion of uranium, mostly in the form of uranyl tricarbonate, the element can be sucked out of it by ion exchange.

虽然铀在海洋中的含量只有十亿分之三，但其中大部分都以三碳酸铀的形式存在，使得铀元素可以通过离子交换吸出。

Vermiculite and zeolite have excellent adsorption, ion-exchange performance, in water treatment has a wide range of applications.

蛭石和沸石都具有优异的吸附、离子交换性能，在水处理中有着广泛的应用。

The surface zirconyl species as centers of negative charge compensated by sodium ions presents a property of ion exchange. mesoporous silica ; ZrMCM-41; synthesis ; molecular sieves

在本文中，作者使用中性条件和硝酸氧锆作锆源，在水热体系中把Zr原子引入其固架，合成出了ZrMCM - 41 ，发现该样品与文献 [4]，[5]报道的不同，存在明显的B酸中心。1 实验部分1 。1 试剂硅源：Na2 Si3O7溶

In this work, a new process based on ion-exchange and high vaccumn distillation was developed. A weak alkalic ionexchange resin, D301, was screened out.

本文研究开发了以离子交换树脂法和真空精馏结合分离提纯乙酰丙酸的新工艺。

Based on using the alkaliferous brine from the diaphragm production system as the feed water for the ion-exchange membrane production system and enhancing the ratio of bittern doping,make full use of the alkaliferous brine produced by the evaporat.

无锡化工集团格林艾普化工股份有限公司面对原材料涨价的不利局面，通过严格的试验和分析，采用价廉的原材料进行了两次技术改造，在以隔膜生产系统碱盐水为离子膜生产系统原料水、提高掺卤比的基础上，利用离子膜淡盐水溶化来自蒸发离心机的碱盐，最大幅度地提高了卤水的用量，进一步降低了生产成本，增强了产品的竞争力，创造了较大的经济效益。

The invention also relates to a preparation method of the selective infrared absorption material of the amino adipate with the intercalation structure, which is characterized in that hydrotalcite LDHs is taken as a precursor, and organic matter of aminoacetic acid is intercalated between the hydrotalcite LDHs layers by an ion-exchange method and then assembled to obtain the IDAs-LDHs with a good crystal phase structure and excellent performance.

本发明还涉及该氨基二乙酸插层结构选择性红外吸收材料的制备方法，以水滑石LDHs为前体，采用离子交换法将氨基乙酸类有机物插入到LDHs层间，组装得到晶相结构良好、性能优异的IDAs-LDHs。

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