离子对

Regularity of adsorption removal for bromine and bromate in water has been tested by three different activated carbon.

采用3种活性炭对水体中溴离子和溴酸盐的吸附去除规律进行了考察。

The method for the determination of trace level of bromate in drinking water by ion chromatography with direct injection was optimized.

对直接测定饮用水中痕量溴酸盐的离子色谱方法进行了优化。

Using the technique of ultraviolet absorption spectrometry and fluorescence spectrometry, this study examined the interactions between bromoform(CHBr3) and calf thymus DNA with or without Cu2+, Co2+, Cd2+ and Mg2+individually or concurrently.

采用紫外光谱和荧光光谱法研究了CHBr3与离体小牛胸腺DNA间的相互作用，以及Cu2+、Co2+、Cd2+、Mg2+ 4种金属离子单独或共存时对CHBr3与ctDNA结合的影响。

In addition, the effects of transition-metal-doping and mixed crystalline effect are discussed in detail. Two worthy problems which are the photocatalytic activity of brookite and the Ti-doping TiO2 are put forward.

此外，本文对混晶效应和过渡金属离子掺杂的影响也作了较详细的探讨，提出了两个值得进一步深究的问题：板钛矿型TiO2的光催化活性以及Ti4+的掺杂。

And the accurate masses of the product ions of butanone and propenol resulting from the ion/molecule reactions were obtained.

另外 ，把该类化合物(30个)SCI反应的质谱图与NIST98库中的标准EI质谱图进行了比较，建立了SCI质谱图库，提高了在离子阱质谱上对这类小分子化合物定性分析的准确率。

The mechanism of ring-opening cationic polymerization reaction of tetrahydrofuran and butylene oxide was analyzed on the basis of electronic microstructures by using frontier orbitaltheory.

求取了四氢呋喃和环氧丁烷单体与仲氧鎓离子反应的过渡态，并根据频率分析和内禀反应坐标计算对过渡态的合理性进行了确认。

We used ion-exchange method to remove butyric acid from fermentation broth.

采用离子交换法吸附发酵液中的丁酸，从18种树脂中筛选出了1种对丁酸吸交性能较好的树脂A。

In this paper the authors reviewed the characteristics in the different phases in the life cycle of ferns. Special attentions were given to the effect of light, plant growth regulators, water and temperature on the fern gametophyte development, and the effect of antheridiogen, light, calcium and other plant growth regulator on the formation and differentiation of fern sex organ.

作者概述了蕨类植物生活周期中不同发育阶段的特点，并着重介绍了光、植物生长调节物质、水和温度等因素对蕨类植物配子体发育的影响以及成精子囊素、光、钙离子和其它植物生长调节物质在性器官形成和分化过程中的作用。

The working conditions of equipments, the mediums and their concentrations, and the interference of coexisting ions were investigated. The results showed that when the flame was shielded with oxygen enriched, the barium in lapis lazuli could be determined using calcium nitrate as releasing agent in 5% nitric acid. The obtained results were satisfied.

对仪器的工作条件、介质及其浓度、共存离子的干扰进行了探索，结果表明，在富氧屏蔽火焰条件下、体积分数为5%硝酸介质中，以硝酸钙作释放剂，测定天青石中的钡，可获得满意结果。

With Hg_2Cl_2HgS ion-selective electrode and model 217 saturated calomel electrode, experiments have been made for determination of chloride in highpurity water.

采用Hg_2Cl_2/HgS离子选择电极和217型饱和甘汞电极，对高纯水中微量Cl~(-1)的测定进行了实验。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐