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The determination of alkali metal and alkaline earth metal ions by non suppressed ion chromatography was described.

引言碱金属和碱土金属离子的分析在环境、地质、石油化工、农业等许多领域有着重要的意义。

In this thesis, the strength of hydration for different alkaline and alkaline earth ions was obtained quantitatively by MD simulation.

本论文通过分子动力学模拟对碱金属和碱土金属离子水化强弱的进行了定量描述。

Based on the pioneers' research work, the theoretical calculations have been performed on the interactions between the alkaline earth ions and aromatic systems.

在前人研究一价离子的基础上，进一步研究了金属离子，特别是碱土金属离子与芳环体系的相互作用。

In the third chapter, the cooperative effects of alkaline earth metal ions and EDTA on the corrosion inhibitor of pure aluminum in alkaline solutions were investigated.

第三章中，作者研究了碱土金属离子与EDTA对纯铝在碱性溶液中的缓蚀作用。

CALORIMETRIC TITRATION FOR COORDINATION REACTION OF 2, 3-BENZO-8, 11, 15-TRIMETHYL-18-CROWN-6 WITH ALKALI AND ALKALINE EARTH METAL IONS

若干碱金属及碱土金属离子与2，3-苯并-8，11，15-三甲基-18-冠-6配位反应的量热滴定研究

Arenedisulfonates have much stronger coordination ability to alkali, alkaline earth than to transition metal ions.

芳烃二磺酸根离子与碱金属离子和碱土金属离子的配位能力比过渡金属离子强。

The electrode has a highly selectivity for silver ion over alkali, alkaline earth and common transition metal ions.

该电极可作为测定维生素B1药片中维生素B1含量的电位滴定指示电极和水样中银离子含量的直接测定。

It was found that cyclic peptide 23shows higher transport activity for the studied alkali and alkaline-earth metal ions thancompound 24, which is related to the backbone flexibility of the cyclic peptides.

研究了在这两种环肽的存在下，碱金属和碱土金属离子穿越二氯甲烷液膜的过程。

The mechanism,thermodynamics and kinetics of ion-exchange reactions between alkali,alkaline-earth and transition metal ions and zirconium phosphate and its derivatives ar...

本文综述了碱金属、碱土金属、过渡金属离子等与磷酸锆及其衍生物的离子交换反应机理、热力学和动力学特性，另外也讨论了发光金属配合物与磷酸锆的离子交换反应研究进展。

The mechanism, thermodynamics and kinetics of ion-exchange reactions between alkali, alkaline-earth and transition metal ions and zirconium phosphate and its derivatives are reviewed, progress in ion-exchange reaction between luminescent metal complex and zirconium phosphate is also discussed.

本文综述了碱金属、碱土金属、过渡金属离子等与磷酸锆及其衍生物的离子交换反应机理、热力学和动力学特性，另外也讨论了发光金属配合物与磷酸锆的离子交换反应研究进展。

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