查询词典 cation

Sol–gel/diaminobenzoic acid hybrid materials were also generated to be used as the MALDI matrices for the analysis of oligonucleotides. It is because that DABAs have good molar absorptivity at wavelength of 337 nm. Furthermore, two amino functional groups attached to the aromatic ring in DABAs can also suppress the cation adductions of oligonucleotides and leave the protons to the oligonucleotides during MALDI-MS analysis. This matrix system can be used as an alternative for the analysis of oligonucleotides.

本论文也利用双胺基苯甲酸与溶胶凝胶混成产物当做MALDI基质来分析DNA分子，利用双胺基苯甲酸本身具有吸收雷射的特性，且其含胺之官能基可和钠、钾离子竞争DNA上磷酸根的负离子结合部位，因此可和DNA有较强的亲合力，而在脱附游离的过程中并可转移质子给磷酸根，可有效降低盐类的干扰，此一基质系统可取代传统MALDI基质混合胺盐的效果，适合用於DNA样品的分析。

OO from the beginning of a three-year sales of chemical raw materials, specific printing ink, printing ink, sodium hydroxide, liquid (30-50%) hydrochloric acid, electrical cleaning agents, electrical agents, detergents, bactericidal Algicide, corrosion inhibitors, scale inhibitors, polyacrylamide (cation-anion), toluene, glacial acetic acid, such as bleaching, aluminum-based industries to the production of chemical raw materials used.

从二OO三年开始化工原料的销售，具体有印刷油墨、印刷水墨、氢氧化钠、液碱（30-50%）盐酸、电器清洗剂、电器保护剂、除垢剂、杀菌灭藻剂、缓蚀剂、阻垢剂、聚丙烯酰胺、甲苯、冰醋酸等漂染、铝型才行业的生产用化工原料。

Eleven α-V-group cation-substituted toluenes (1) and acetophenones (2)were synthesized. The equilibrium acidities of these compounds were determined indimethyl sulfoxide solution by the "Overlapping Indicator Method" and the homolytic C-Hbond dissociation energies were derived from a thermodynamic cycle combining pKawith oxidation potential of carbanion.

合成了α-位有第V、Ⅵ主族元素杂正离子取代基的甲苯系列（1）和苯乙酮系列（2）共11个Ylide前体化合物，用重迭指示剂法首次测定了其在二甲亚矾溶剂中的酸性解离常数PKa，同时结合碳负离子氧化电位的测定，通过热力学循环估测了它们的气相均裂键能。

Adding chelations in solution to avoid hydrolyzing before to deal with the etched foils. There are some reasons: to avoid hydrolyzing of the cation in solution, to give facilities for the soakage to the surface of etched foils, to decrease the size of crystals.

由于复合氧化物中的阀金属元素的特殊性质，为保证处理液在工业生产中的稳定性，应尽量将阀金属阳离子单离子化，这样处理有如下好处：避免阳离子在水溶液中水解变性；便于处理液与腐蚀箔的浸润；尽量缩小晶粒尺寸。

Using 〓ryanodine binding assay, the effects of 〓 and divalent cation's chelators on ryanodine receptors of skeletal and cardiac muscle cells were investigated.

采用〓ryanodine结合的实验技术，本工作研究了锌离子和一些二价金属离子螯合剂对骨骼肌和心肌ryanodine受体的作用及其机制。

There are some complexed water molecules by cation H〓 in USY.

在USY中，阳离子络合了一定数量的水分子。

Heating at different temperatures, the quantity of the desorbed water molecules is different, and without complexed water molecules, the cation H〓 can react with o-Ps.

在不同温度烘烤下，脱去其络合水分子的数量是不同的，而脱去络合水的阳离子H〓会与o-Ps发生化学反应。

Dibutyl succinate was synthesized catalyzed by a strong acid cation exchange resin from succinic acid and n-butyl alcohol.

用强酸性阳离子交换树脂催化丁二酸和正丁醇的酯化反应，合成了丁二酸二丁酯。

Sm and Nd are separated and purified by using HIBA as an eluent through a very small volume of cation-exchange resin

该方法选用AG50W×8阳离子交换树脂，并先后采用不同的淋洗剂进行分离提纯。

In this thesis, the solution of Chinese reference materials including lithium, potassium, calcium, sodium, magnesium, was used to evaluate analytical methods applied. Lithium was enriched in different eluents (hydrochloric acid, nitric acid and mixture with ethanol or methanol) by cation exchange resin AG 50W-X8, and the optional experimental conditions were studied.

本文以锂元素标准样品和钾、钠、钙、镁元素标准样品的混合溶液为主要研究对象，采用阳离子交换树脂AG-50W-X8来分离富集锂，探索在不同淋洗介质(包括盐酸、硝酸以及与甲醇、乙醇的混合)条件下锂分离纯化的最佳介质条件。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。