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This article reviewed the synthesis of n-substituted aza crown ethers and their new applications to the field of selective complexation and extraction for metal ions .

摘要综述了n-取代氮杂冠醚的合成和对金属离子的选择性络合和萃取研究的新进展。

The research progress in the preparation of chitosan-based nanoparticles as drug carriers were briefly reviewed , including covalently crosslinking , ionically inducing , precipitation , interpolymer complexation and self-assembly methods .

简要评述了壳聚糖基载药纳米微粒的制备方法，包括共价交联、子诱导、淀析出、分子复合和自组装方法及其研究进展。

The structural features and the complexation properties of crown ether compounds were introduced , as well as their new developments on complexation , ion recognition , and molecular recognition .

介绍了冠醚类化合物的结构特点及络合性能、冠醚的络合作用和识别分子离子的新进展。

A study of the formation of goethite , hyrogoethite and hematite under the bacterial action indicates that the bacterial action includes the whole process of solution and adsorption , complexation , transformation and crystallization-nucleation .

研究表明，细菌作用下形成针铁矿、水针铁矿和赤铁矿的过程中，细菌对矿物的作用贯穿于溶解吸附、络合、转换、结晶成核的全过程。

Results in the experiments show that symmetrical and steady hydrates have been shaped ; its process on formation of natural gas hydrates from ice is the course on reaction of solids and gases , which contain adsorption , catalysis , complexation and crystallization .

实验结果表明，在这种情况下能形成稳定均匀的水合物；冰成天然气水合物的过程是气固反应过程，过程包括吸附、催化、络合、结晶过程。