片语

crown ether stationary phase冠醚固定相

Immobilized crown ether固载化冠醚

Aza-Semi-Crown-Ether氮杂半冠醚

thia crown-ether硫杂冠醚

polymer with crown ether高分子冠醚

crown-ether polymer高分子冠醚

-crown- ether[有化] 冠醚

aza-crown ether氮杂冠醚

英汉例句

• the melting points of crown ether liquid crystals reported so far were quite high.

  文献上所报道的冠醚液晶的熔点都相当高。

• the tm of amide type crown ether liquid crystal compounds is relatively high due to the formation of intermolecular hydrogen bond.

  由于分子间氢键的作用，使这类化合物的熔点较高。

• excellent selectivity was obtained for the separations of polar position isomers. the benzamide substituent group on crown ether makes the stationa…

  由于冠醚上引入苯甲酰胺取代基，因而对苯胺类及不经衍生化的堿性化合物能特殊选择性地分离。

• it is a challenge for people to design more highly selective crown ether for single metal ions.

  如何设计对单一金属离子具有高选择性的冠醚，一直是人们所面临的具有挑战性的课题。

• the results show that the crown ether extraction- neutron activation method can be satisfactorily applied to the separation and determination of trace rhenium in rock samples and complex systems.

  研究结果表明冠醚萃取中子活化法可较好地用于巖石和复杂体系中痕量铼的分离分析。

• this research indicated that azacrown ether was the preferred parent for complexation surfactant of crown ether and extraction agent.

  研究结果表明氮杂冠醚适合作为络合型杂冠醚表面活性剂和萃取剂的首选络合母体。

• in this method, chiral crown ether (-)-18-crown-6-tetracarboxylic acid (18c6h_4), was chosen as chiral resolving agent.

  以酒石酸为原料，经过酯化、酰胺化、环合、脱酰胺保护等步骤合成了手性拆分试剂18-冠-6-四羧酸（18c6h_4）。

• in this paper, a class of ionic liquids containing crown ether structure as the cation were synthesized, which will be effective on the arsenic wastewater treatment.

  本课题结合冠醚的络合萃取特性合成一类对砷具有选择性配合能力的离子液体，以期实现对含砷废水的有效地治理。

• several crown ether derivatives possessing phenanthroline groups were prepared and their gelation properties with ammonium were investigated.

  本文设计合成了几种含邻菲咯啉的冠醚衍生物，并研究了它们与几种铵盐形成水凝胶的行为。

• this is an overall review about the development of synthesis and applications of chiral crown ether compounds.

  对近几年来的手性大环冠醚化合物的合成及应用研究进展作了较为全面的综述。

• this paper discussed the mechanism of crown ether complxing sodium ion. based on a dipole model a rough analysis and estimation for the effective compl-exing rang of a crown erber have been made.

  本文主要讨论了冠醚络合钠离子的机理，提出偶极子模型，对冠醚的有效络合范围作了初步的分析和估算。

• in this paper, a detail review is given on the recent progress in chiral crown ether biomimetic chemistry.

  综述了部分开链配体的络合行为 ，对手性冠醚的合成、分子识别及仿生功能的研究进行了评述 。

• a novel armed crown ether has been synthesized and its chromophoric sensor behavior and the binding ability with alkali metal and alkaline earth cations were investigated.

  本文设计合成了一种新型臂式冠醚，并研究了它对堿（土）金属离子的生色传感和选择性键合行为。