查询词典 ion exchange

Due to its exceptional structure, theNASICON-type zirconium phosphates exhibit excellent properties of ionicconduction, low thermal expansion and capability of ion exchange, etc. As aresult, they are one kind of outstanding carriers for antimicrobial, catalysts,nuclear radwaste and so on.

得益于其结构的特殊性，这一类材料具有良好的离子导电、低热膨胀和离子交换等性能，是抗菌剂、催化剂和固定核废料放射性同位素等极好的载体。

The invention has the advantages that: 1 the preparation method is simple, the obtained pine needle essential oil has good quality and higher yield, the yield is increased by 30 to 49 percent or so compared with that of directly adopting the steam distillation; 2 the hydrophilic ionic liquid can be reclaimed and recycled by adopting the ion exchange method, which can not cause the environmental pollution.

本发明的优点：1制备方法简单，得到松针精油质量好，得率较高，比直接采用水蒸气蒸馏法的产率高30～49％左右；2亲水的离子液体可以采用离子交换法回收循环使用，不会造成环境污染。

A method for determination of rare earths in ores, ion-exchange resins and solution samples has been developed.

本文叙述了稀土提取工艺过程中矿石、离子交换树脂和液体样品中稀土总量的测定方法及其应用。

The FTIR and TEM results show that Ce3-sol free from NO3-, CO32- was prepared by ion exchange method without washing, then the CeO2 crystal of high purity was synthesized by oxidation with H2O2 and vacumm drying. The sample obtained had an average diameter of 3 nm and good dispersity.

FTIR、TEM分析表明，离子交换法无需对合成的Ce3溶胶进行洗涤即可去除NO3-、CO32-等阴离子杂质，并用H2O2将该溶胶氧化，经真空干燥可制得粒径分布均匀，平均晶粒尺寸约3 nm，高纯度的CeO2粉体。

Gene therapy ; DNA vaccine ; plasmid ; ion exchange chromatography

基因治疗； DNA疫苗；质粒；离子交换色谱

Since 1993, manufacturers also developed a starch sugar "turnkey" projects (including the acid, two of the legal system Tai sugar, liquid glucose, high maltose, etc.), has a contract in Shandong, Henan, Jiangsu, Anhui, and so most of the country Of the starch sugar factory technical guidance, engineering, including plant design, production and installation of the equipment transfer of technology, process design, product quality in line with national standards, the maximum size of Nissan Design 200 tons, and its main production facilities are: bubble-meter tank , Refining machines, liquefied jet, liquefied reaction cans, glycosylated cans, decolorizing cans, vapor-liquid separator, frame filter (frame-style, Van), ion-exchange column, the evaporator (single Xiao, the effect of three-way), as well as various ancillary products pumps, reducer, a heat exchanger, and so on.

自 1993 年以来，厂家又开发了淀粉糖&交钥匙&工程，（包括酸法、双酶法制鈶糖、液体葡萄糖、高麦芽糖等），先后承揽了山东、河南、江苏、安徽等全国大部分省地的淀粉糖厂家的技术指导，工程包括厂房设计、设备的制作及安装技术转让、工艺设计等，产品质量符合国家标准，设计规模最高日产 200 吨，其主要生产设备有：泡米罐、磨浆机、液化喷射器，液化反应罐、糖化罐、脱色罐、汽液分离器、板框过滤机、离子交换柱、蒸发器等，以及各种配套产品泵类、减速机、换热器等。

Methods The concentration effects of stock solution of vaccine by filter membrane with various sizes were compared by detecting HFRS virus antigen by ELISA. The purification effects of ion exchange chromatography and gel filtration were also compared.

用ELISA检测HFBS病毒抗原的方法，比较疫苗原液通过不同孔径滤膜的浓缩效果；比较离子交换和凝胶过滤的纯化效果。

Product formation lined face, smooth and strong, with the traditional steel-lined tank plastic board, glass-steel-lined steel tank, it has a better corrosion-resistant, non-leaking, non-peeling, wear-resistant, long life, etc., corrosive liquid is ideal for shipping container storage and transportation, can be applied to 100 ℃ the following motor transport tanks, piping, low pressure tanks, vacuum tanks, reactor, fermentation tanks, ion-exchange columns, pickling tank, sedimentation tanks, and cans , the crystallization of cans, cans enrichment, plating tank, pickling tank and so on.

产品内衬面平整、光滑、坚固，与传统的钢衬塑料板储槽、钢衬玻璃钢贮槽相比，具有更良好的耐腐蚀、不渗漏、不剥离、耐磨损、寿命长等优点，是装运腐蚀液体的理想储运容器，可应用于100℃以下的汽车运输槽罐、管道、低压罐、真空罐、反应釜、发酵罐、离子交换柱、酸洗槽、沉淀罐、中和罐、结晶罐、浓缩罐、电镀槽、酸洗槽等。

USY zeolite supports with different acid amounts were obtained by steam dealumination. Dual metal catalysts with a total loading of Pd and Pt of 1.15% were prepared by the ion-exchange method.

采用水蒸气脱铝获得表面酸量不同的USY载体，并用离子交换法制备了金属含量为1.15%的双金属催化剂。

In the process of ion exchange membrane electrodialysis with three compartments, sodium lactate was converted into lactic acid and sodium sulphate was obtained by adding sulphuric acid.

在离子交换膜电渗析从乳酸钠制备乳酸中，利用三室的电渗析器在外加硫酸的条件下将乳酸钠转化为乳酸，同时得到硫酸钠。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。