挥发油

Objective To establish the method of fingerprint analysis for volatile oil from Cinnamomum cassia Presl and to determine the main characteristic components.

目的 建立肉桂挥发油GC分析色谱条件，初步拟定肉桂挥发油特征指纹图谱指标成分群。

The essential oil from Cinnamomum cassia Presl was studied by non-polar solvent microwave-assisted extraction coupled with gas chromatagraphy-mass spectrometry.

利用非极性溶剂微波辅助提取-气相色谱质谱联用研究了肉桂中的挥发油成分，并测定了挥发油中的主要成分肉桂醛的含量。

Efficacy of Cinnamoum camphora oil, Chinese cinnamon oil and Luicium verum oil which were selected from eight plant volatile oils against the stored grain instcts( Sitophilus zeamais, Rhizopertha dominica, Tribolium confusum) was studied.

文摘：从天然植物中提取的挥发油经初步试验筛选出8种杀虫效果突出的植物，以黄樟油、桂油、角油对试虫用方式的测定发现，这些植物挥发油具有强烈的熏杀和触杀作用，而且具有用量低，致死作用迅速等特点。

Efficacy of Cinnamoum camphora oil, Chinese cinnamon oil and Luicium verum oil which were selected from eight plant volatile oils against the stored grain instcts (Sitophilus zeamais, Rhizopertha dominica ,Tribolium confusum) was studied.

文摘：从天然植物中提取的挥发油经初步试验筛选出8种杀虫效果突出的植物，以黄樟油、肉桂油、八角油对试虫(玉米象、谷蠹和赤拟谷盗)作用方式的测定发现，这些植物挥发油具有强烈的熏杀和触杀作用，而且具有用量低，致死作用迅速等特点。

Efficacy of Cinnamoum camphor a oil, Chinese cinnamon oil and Luicium verum oil which were selected from eight plant volatile oils against the stored grain instcts (Sitophilus zeamais, Rhizopertha dominica,Tribolium confusum) was studied.

文摘：从天然植物中提取的挥发油经初步试验筛选出8种杀虫效果突出的植物，以黄樟油、肉桂油、八角油对试虫(玉米象、谷蠹和赤拟谷盗)作用方式的测定发现，这些植物挥发油具有强烈的熏杀和触杀作用，而且具有用量低，致死作用迅速等特点。

Objective: To extract the volatile oil from rhizome,leaf,flower of chive by chemical method and its chemical components were identified.

目的 ：用化学方法从韭菜的根茎、韭菜叶、韭菜花中提取挥发油，并鉴定出其挥发油的化学成分。

Objective: To discuss the influences of the concentrations of sodium cholate, cholesterol and drug, preparation temperature, ultrasonic time and power on the particle size and encapsulation efficiency of Flos Magnoliae volatile oil nano-liposome through film-ultrasonic wave technique together with membrane filter method.

目的：采用薄膜分散-超声-膜过滤法制备辛夷挥发油纳米脂质体，考察胆酸钠、胆固醇、药物浓度、超声功率和超声时间等因素对辛夷挥发油纳米脂质体粒径及包封率的影响，并对纳米脂质体的形貌、稳定性进行分析。

The optimum conditions of supercritical CO2 extraction were determined by orthogonal experiment as follows: extraction pressure 30 MPa, extraction temperature 40℃, 75% ethanol as entrainer (5% of solid material) and extraction time 2.0 h. The yield of volatile oil was 9.92%.

通过正交实验确定超临界CO2萃取挥发油的优化条件为：以75%乙醇（添加量为原料质量的5%）为夹带剂、萃取压力30MPa、萃取温度40℃、萃取时间2.0h，此时，挥发油的收率为9.92%。

The granule was prepared by mixing the water extracts, volatile oil and starch. The content of eucalyptol in the granule was determined with the GC method.ResultsThe optimum extraction condition was as follows: the crude drug was extracted with 10 times amount of water for 5 hours to collect the volatile oil.

方法采用水蒸气蒸馏法提取高良姜药材中的挥发油，设计L9（34）正交实验确定最佳挥发油包合工艺，将水提液浓缩干燥与包合物制成配方颗粒，采用气相色谱法，FID检测器测定配方颗粒中桉油精的含量。

Objective: The constituents of essential oils were extracted from Lophatherum gracile Brongn. and analyzed by GC/MS technology. Methods: The essential oils were extracted from L.gracile Brongn.

目的：采用3种方法提取淡竹叶中的挥发油，利用气相色谱-质谱联用技术全面分析其挥发油中的化学成分。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。