查询词典 stationary

Two chiral stationary phases, phenyl isocyanate teicoplanin CSP and 3,5-dimethylphenyl isocyanate teicoplanin CSP were prepared from the macrocyclic glycopeptide teicoplanin CSP using derivative agents, phenyl isocyanate or 3,5-dimethylphenyl isocyanate, respectively.

用大环抗生素替考拉宁手性固定相分别与3，5-二甲基苯基异氰酸酯和苯基异氰酸酯反应得到了两种新型的高效液相色谱手性固定相----3，5-二甲基苯基异氰酸酯替考拉宁手性固定相和苯基异氰酸酯替考拉宁手性固定相。

The hydrogen bonding and π-π interactions between the chiral stationary phase and the polar group of racemates may be responsible for the chiral recognition.

手性固定相与外消旋样品上的极性基团之间的氢键作用和π-π作用可能是进行手性识别的主要原因。

Some economic and practical polysaccharide-based chiral stationary phases for HPLC were prepared and applied to the enantiomeric resolution of a variety of racemates.

本论文选择高效液相色谱手性分离为研究目标，制备了一些经济、实用的多糖类手性固定相，并对多种手性化合物的拆分进行了研究。

Firstly, synthetic racemates of β- amino acids were resolved into their enantiomers by ehiral ligand - exchange flash chromatography with L - hydroxyproline chemically bonded to irregular silica as the stationary phase and aqueous solution containing cupric ions as the mo

首先合成L-羟脯氨酸硅胶键合手性固定相，用于快速色谱中3-羟基-4-甲氧基-β-苯丙氨酸对映体的制备分离，考察了流动相中Cu^2＋浓度、样品体积等因素对分离的影响。

Because of good selectivity to anions in solution of calix[4]pyrroles, the synthesis of calix[4]pyrrole-bonded stationary phase will also provide new means for separation to anions and neutral substances in chromatography and promote the development in supramolecular chemistry.

基于杯[4]吡咯化合物在溶液中对阴离子的选择性识别性能，利用其对色谱固定相进行改性以合成针对阴离子和中性小分子化合物的色谱柱将为色谱分离技术提供新的手段，推动超分子化学在分析化学中的应用并促进杯吡咯化学的发展。

In our research, through derivatization of stable calix[4]pyrroles, active substituting units were jointed on the calixpyrrolic skelecton. After acylamide and free radical transfer reaction, the preparation of new calix[4]pyrrole-bonded stationary phases were fulfilled. the separation abilities of them to inorganic and organic anions and medicines were exploited and new analytical methods were established. The separation mechanisms were discussed. At the same time, through using calix[4]pyrroles as additives in CZE to influence the electrophoresis of inorganic anions, the recognition mechanisms and influencing factors in supramolecular chemistry were also studied.

本项目以新型杯吡咯大环化合物分子识别化学研究为基础，设计合成了含活泼取代基的官能化杯[4]吡咯化合物，通过酰胺化反应和原位自由基链转移反应制备了新型的杯[4]吡咯色谱固定相，系统研究了具有阴离子识别功能的杯[4]吡咯大环化合物作为离子色谱的分离介质对无机、有机离子型化合物和药物分子的色谱分离性能，建立了新的分析方法，对分离机理进行了探索和验证；同时将杯[4]吡咯化合物用作毛细管电泳流动相添加剂，利用其对无机阴离子电泳行为的影响探讨超分子化学中分子识别的机理和影响因素。

A increase in the speed of printis achieved because of linear arrangement of large stationary printheads - inks are distributed throughout the entire width of paper at the moment of passage of sheet under the printing heads.

一，增加在速度打印，是因为取得的线性安排的大型固定打印头-油墨分布在整个宽度的纸张目前通行的资产负债表下，印刷元首。

A increase in the speed of printis achieved because of linear arrangement of large stationary printheads - inks are distributed throughout the entire width of paper at the moment of passage of sheet under the printing heads.

阿增加的速度实现打印，因为线性安排的大型固定打印头-油墨分布在整个宽度的纸张目前通行的资产负债表下的打印头。

IST offers a complete line of instrumentation, including potables, single- and multi-point stationary instruments, stand-alone sensor transmitters, and computerized gas monitoring systems.

IST提供全系列的气体检测仪器，包括便携式、单点和多点固定式仪器、单独的气体传感变送器以及计算机化的气体监测系统。

Now, in the dark, I feel only bitter sadness for us, the builders, the planers of wood, because I have been looking steadily at these elms and seen the process that creates the writhing, stationary tree is torment, and have understood it will make no forms but twisted forms.

现在，于黑暗中，对我们，木材的营造和设计者，我只有感到苦涩悲伤，因为我一直不变地注视着这些榆木和看到扭曲苦痛的过程，静止的树是痛苦的，并理解到它不会做成形除了扭曲之状。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新