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- Keywords HPLC;Bonded silica stationary phase;Aza crown ether; 高效液相色谱;键合硅胶固定相;氮杂冠醚;
- Keywords compund of aza crown ether;elemental analysis;IR spectra; 氮杂冠醚化合物;元素分析;红外光谱;
- 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. 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.
- Keywords lanthanides;complex;chiral aza crown ether;synthesis;characterization; 稀土;配合物;苯并氮杂冠醚;合成;表征;
- Preparation and Evaluation of Aza Crown Ether Bonded Silica for High-performance Liquid Chromatography 高效液相色谱氮杂冠醚键合固定相的合成及性能研究
- Recent Advances of N-Substituted Aza Crown Ether in Its Synthesis, Extraction and Selective Complexation N-取代氮杂冠醚的合成和络合萃取性能研究进展
- Keywords polymeric crown ether;aza crown ether;synthesis;swelling;adsorption;transition metallic ion; 聚合物冠醚;氮杂冠醚;合成;溶胀;吸附;过渡金属离子;
- Keywords N-substituted aza crown ether;synthesis;selective complexation;extraction; 取代氮杂冠醚;合成;选择性络合;萃取;
- aza crown ether 氮杂冠醚
- Under acid condition open chaining crown ether diaromatic aldehyde can react, and they will synthesize a compound of chaining crown ether diaromatic aldehyde thiosemi-carbazone kind. 摘要链状冠醚二芳醛在酸性条件下与氨基硫脲反应，合成了链状冠醚二芳醛缩氨硫脲类化合物。
- Two new exocyclic ring-fused boron-dipyrromethene (BDP) dyes with benzo crown ether subunit at meso-position were prepared.Their spectroscopic and electrochemical properties were investigated. 本文报道了两种中位为苯并冠醚亚单元取代的含稠合外环的硼-二吡咯亚甲基染料的合成、光谱和电化学性质。
- It is reported that cadmium in the form of CdI 2- 4 can be preconcentrated by its complex reaction with a crown ether called polybenzo 15 crown 5 (A type), which is coated on a molecular sieve and filled into a glass column. 报道了用装有涂布了聚苯并 15 冠 5 (A型 )的分子筛的玻璃分离柱可用于水中痕量镉的预富集。 此分离方法是基于CdI2 - 4络阴离子与冠醚的络合反应。
- Synthesis and characterization of Schiff base type liquid crystalline crown ether ligandsA new kind of schiff base type liquid crystalline crown ether ligand was synthesized on the base of molecul. 二、席夫碱型液晶冠醚配体的合成与表征从分子设计出发，设计并合成了一类新的席夫碱型液晶冠醚化合物。
- Three kinds of crown ethers were synthesized for the study of sodium ion-selective electrode. They are bis(crown ether)s, derivatives of hydroxy-crown ether and open-chain amide. 本文为满足研制钠离子选择电极的需要,根据主客体化学、配位化学和离子选择电极等理论,设计并合成了三类新型冠醚化合物,它们的结构经元素分析、红外、核磁共振和质谱数据确证。
- A review with 21 references on development and applications of calix crown ethers are described. 摘要综述了杯芳冠醚的产生、发展及应用研究的新进展，展望了它的工业应用前景。
- The crown of St Wenceslas was in prague cathedral. 圣文萨斯雷的皇冠保存在布拉格大教堂。
- crown ether silicon slice cleaning agent 冠醚硅片清洗剂
- Asymmetric allylation of 2-nitrocycloketones was catalyzed by palladium with chiral ferrocenylphosphine ligand modified by monoaza crown ethers (A-D). 在用氮杂冠醚改良的手性二茂铁膦与钯的络合物催化下,2-硝基环酮可进行不对称烯丙基化反应。
- A whiff of ether will put you out in a few seconds. 一剂乙醚几秒钟后就会使你失去知觉。
