查询词典 levorotatory

The levorotatory form of dopa, used to treat Parkinson's disease.

左旋多巴左旋形式的多巴，用于治疗帕金森综合症

Objective: To develop a method for purity test and enantioseparation of ephedrine levorotatory by capillary electrophoresis.

目的：建立左旋麻黄碱中对映异构体杂质检查的毛细管电泳方法。

Results: Under the experimental conditions adopted, the baseline separation of ephedrin and ephedrine levorotatory was obtained.

结果：麻黄碱及伪麻黄碱对映体得到良好分离，并满足进行左旋麻黄碱中对映异构体杂质检查所需要的条件。

Of or relating to a chemical compound that contains equal quantities of dextrorotatory and levorotatory forms and therefore does not rotate the plane of incident polarize d light.

外消旋的属于或关于一种化合物的，该化合物由等量的左旋和右旋形式组成，因而对偏振光平面不旋光

A solution of one stereoisomer of a given monosaccharide rotates plane-polarized light to the left and is called the levorotatory isomer, designated

一特定单糖的一种立体异构体溶液使平面偏振光向左旋转称为左旋，标记为

Conversion of a substance in which the direction of optical rotation is reversed, from the dextrorotatory to the levorotatory or from the levorotatory to the dextrorotatory form.

转化旋光度方向被反向，即以右旋形式到左旋形式或以左旋形式到右旅形式的变化过程中物质的变化

Levorotatory and dextrorotatory enantiomers of cetirizine and other nine compounds were synthesized and were identified by MS, IR, 1H-NMR and elemental analysis .

通过化学拆分得到单一手性的4-氯-α-苯基苯甲胺，然后由它出发合成出左西替立嗪和其它九个化合物的单一对映体，并经元素分析、红外、质谱、核磁等鉴定。

Chemistry Conversion of a substance in which the direction of optical rotation is reversed, from the dextrorotatory to the levorotatory or from the levorotatory to the dextrorotatory form.

转化：旋光度方向被反向，即以右旋形式到左旋形式或以左旋形式到右旅形式的变化过程中物质的变化

Clausenamide is a compound isolated from clausena lansium Skeels, and has been synthesized and resoluted into levorotatory and dextorotatory clausenamide by our chemists.

黄皮酰胺是从芸香料黄皮属植物黄皮叶中分离出的化合物，我所合成室已完成它的全合成并应用拆分技术分离出它的对映异构体。

Those that rotate light in the opposite direction are called levorotatory or optical isomers. The symbols d- and l-, formerly used to indicate dextro- and levorotatory isomers, are no longer sanctioned owing to confusion with D- and L-, which refer to configuration relative to D-glyceraldehyde.

其符号d-和 l-，原先是用来表示右旋的和左旋的异构体，现在由于容易与D-和L-混淆而不再使用，这两个符号涉及与D-甘油醛相关的结构）。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。