挥发分离

通过GC-MS从丁香挥发油中分离分析出14种化合物，其中丁香酚的相对含量最高，达68%；

By GC-MS , 14 compounds from clove volatile oil were identified . The major constituent is eugenol and the relative content was 68 % .

挥发油中分离出来的油状物单体。

Elemene is a kind of oil monomer extracted from Chinese medicine Curcuma .

冷冻浓缩把水从易挥发酒精中分离出来提供了一种有效方式。

Freeze concentration provides an efficient means for separating water from the more volatile alcohol .

结果：澄茄子挥发油经分离鉴定出57种化合物。

Results : 57 components from the essential oil of Hairyleaf Litse Fruit were identified .

赤泥经处理后，通常在池中储存，待水分挥发后，分离出红色粘土状物质。

Treated sludge is often stored in ponds where the water eventually evaporates , leaving behind a dried , red , clay-like soil .

中药挥发油类成分提取分离研究概况

Research of Extraction and Separation on Volatile Oil Constituents of Traditional Chinese Medicine

利用GC/MS对鲜桑叶的挥发油进行了分离鉴定，共检出85个组分，确定了47个化学组分的结构。

There were 85 chemical components in the volatile oil analyzed with GC / MS.

用GC/MS法从这5个地区的松针挥发油中分别分离出55种、54种、56种、54种和56种挥发性成分，共确定出52种化合物；

55,54,56,54 and 56 kinds of chemical constituents were identified by GC / MS above five districts .

方法：应用主客体识别原理，选择主体分子，经重结晶从挥发油中选择分离单一化学成分。

Method : The host molecule was selected and a single chemical component isolated from volatile oil by the host guest recognition .

结果表明，加入合适的萃取剂可有效地提高旋光性戊醇对异戊醇的相对挥发度，减少分离所需的理论板数。

The results showed that addition of appropriate extracting solvent could increase the relative volatility of active amyl alcohol and decrease the number of theoretical plates .