permutational isomer

Oxidation and isomerous conversion of β-asarone and borneol in Shenchang Injection;

神昌注射液中β-细辛醚、冰片的氧化及异构体转换分析

By using density functional theory G96PW91/6-31+G(3d,2p), the stabilities of series of close heteroboranes and positional isomers have been studied to prognosticate the structures for experiments.

运用G96PW91/6-31+G(3d,2p)方法研究十顶点闭式杂硼烷及其位置异构体的稳定性,为实验合成提供理论预测。

The separation of positional isomers of bromo-alkoxylbenzen with six different polar stationary phase columns was compared.

比较了6种不同极性固定液色谱柱对溴代烷氧基苯类位置异构体的分离效果。

The positional isomers of nitroaniline were separated well in less than 15 min by using the buffer of extreme pH.

采用毛细管区带电泳 (CZE)技术 ,在极端 pH值条件下分离了邻、间、对硝基苯胺位置异构体 ;研究了背景缓冲溶液、pH值、分离电压、温度及进样时间等因素对分离的影响 ,得出了 3种样品的标准曲线、线性范围及加样回收率。

The positional isomers of cresol were resolved by capillary gas chromatography with β-clyclodextnn derivatives as stationary phase.

采用了环糊精衍生物固定相毛细管气相色谱法对甲酚位置异构体进行分离。

The electronic structures of the positional isomers of C57X3 and C56X4 (X = B、 N、 P), 234 molecules in all, have been computed on a 5 8 6 micro-computer by means of CNDO/2 method.

用 CNDO／2方法在 586微机上计算了 C57X3C56X4（X=B、N、P）的 234个位置异构体的电子结构。

Separation of positional isomers of some substituted benzenes with CH-B-15-C-5 as GC stationary phase was studied in this paper.

以胆甾型苯并－１５－冠－５涂渍于硅烷化１０２白色担体作为一种新的ＧＣ固定相，柱温在１２５℃以下（固体固定相）、１２５℃以上（液体固定相）及由１８２℃降至１２５℃以上（冠醚液晶固定相）三种情况下，对几种取代苯位置异构体的分离效果进行了比较研究，并探讨了分离机理。