查询词典 epimers

High performance liquid chromatography, carbon-13 nuclea magnetic resonance, chemical ionization mass spectrometry and gas chromatography with flame ionization detection have been employed for the identification and quantitative deter mlnation of the epimers of amygdalin.

高效液相色谱法、carbon-13 nuclea 磁场共振电离质谱、化学品与气相层析法，以氢火焰离子化检测被用来识别和定量的威慑 mlnation差向异构体的苦的。

This method can be applied in qualitative and quantitative analysis for Sitafloxacin epimers.

该方法可用于西他沙星差向异构体的定量分析。

Objective To develop an RP-HPLC for simultaneous determination of the epimers of glycyrrhizic acid in Radix Glycyrrhizae.

目的 建立RP-HPLC法同时测定甘草药材中甘草酸差向异构体的含量。

Following host injury, the balance between the epimers and isomers is a determining factor in the overall regulation of hematopoiesis, TH/TH(2) balance, and host resistance to infections and tumor growth.

在宿主损伤以后，雄甾烯的异构体和同分异构体之间的平衡是全部生血作用的控制、平衡细胞/体液免疫、宿主抗感染和抗肿瘤增殖的决定因素。

Under building a optimal HPLC condition,the epimers can be seperated well and can be studied by MS,LC-MS and NMR.

双氢青蒿素在有机溶媒中存在α与β差向异构体的转化过程。

These include catechin and gallocatechin (hydroxyls at positions 5' as well as at 3' and 4' as in catechin), their esters with gallic acid, catechin gallate, and gallocatechin gallate, and their epimers.

它们有几茶素和儿茶素(在5'位上以及如同儿茶素中一样在3'和4'位上羟基化)，它们与酸生成的酯，即儿茶素酸酯和儿茶素酸酯，以及它们的差向异构体。

Sitafloxacin epimers were separated by capillary zone electrophoresis using γ-cyclodextrin and D-phenylalanine as chiral selector.

以γ-环糊精和D-苯丙氨酸为手性选择剂，采用毛细管区带电泳成功地分离了新型抗菌素西他沙星差向异构体。

Its main active component is glycyrrhizic acid. GL hastwo epimers, namelyα-GL andβ-GL.

甘草酸具有两种差向异构体，分别为α-GL和β-GL。

X+_ Following host injury, the balance between the epimers and isomers is a determining factor in the overall regulation of hematopoiesis, TH/TH(2) balance, and host resistance to infections and tumor growth.

在宿主损伤以后，雄甾烯的异构体和同分异构体之间的平衡是全部生血作用的控制、平衡细胞/体液免疫、宿主抗感染和抗肿瘤增殖的决定因素。8p*f：kz\-JT6Z，l

A baseline separation of Sitafloxacin epimers was achieved with a background electrolyte of 10 mmol/L KH2PO4-K2HPO4 (pH 4.5), 10 mmol/L CuSO4, 20 mmol/L γ-CD and 10 mmol/L D-Phe. The linear range for Sitafloxacin was 32-400 mg/L (0.996). The relative standard deviations of migration time and peak area were less than 1.9% and 3.8% respectively.

实验结果表明，添加剂的种类和浓度是影响西他沙星手性分离的重要因素，只有当D-苯丙氨酸、铜离子和γ-环糊精同时存在并达到一定浓度时，西他沙星差向异构体在毛细管电泳中才具有良好的分离效果。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。