挥发分离
![挥发分离](../cache/1513266.jpg)
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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 % .
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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 .
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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 .
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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 .
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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 .
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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
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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.
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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 .
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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 .
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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 .