挥发油

Hook. F., behavioral tests using four-armed olfactometer and elecroantennograms responses using EAG recording technique in Liriomyza sativae, were all studied.

生物测定结果表明，每棵豆苗施用1～5 μL挥发油，大部分处理的落卵量明显低于对照，其中5 μL剂量效果最好，干扰作用指数和驱避率分别为0.289、55.14﹪。

Objective: To analyse the chemical components of the essential oil of Gum olibanum somalilnds and Gum olibanum Ethiopia , and to set up determination methods of their main components.

中文摘要：目的：分析进口索马里乳香与埃塞俄比亚乳香挥发油的化学成分，并建立其相应主成分的含量测定方法。

The volatile oils were extracted from Jinshangzhitong plaster,Radix Angelicae Sinensis, Olibanum and Myrrha by steam distillation and identified by GC-MS.

采用水蒸气蒸馏法分别从当归、乳香、没药、筋伤止痛贴中提取挥发油；用气相色谱-质谱法对其化学成分进行鉴定，同时用峰面积归一化法测定样品中各组分的质量分数，并考察各单味药材在成品中的转移率。

The volatile oil s were extracted from Jinshangzhitong plaster,Radix Angelicae Sinensis,Olibanum and Myrrha by steam distillation and identified by GC-MS.

采用水蒸气蒸馏法分别从当归、乳香、没药、筋伤止痛贴中提取挥发油；用气相色谱-质谱法对其化学成分进行鉴定，同时用峰面积归一化法测定样品中各组分的质量分数，并考察各单味药材在成品中的转移率。

Objective To study the optimal inclusion process with β-cyclodextrin for essential oil of Zhike granules .

目的研究止咳颗粒中的挥发油提取和用β-环糊精包合的最佳制备工艺。

Under the optimum conditions, the extraction yield of volatile oil can be up to 1.523%.

在此优化条件下，挥发油的收率平均可达1.523%。

ObjectiveTo establish a fingerprint analysis of Origanum vulgare L..

目的建立牛至挥发油的指纹图谱分析方法。

Key words:Origanum vulgare L.; Fingerprint; GC

牛至挥发油；指纹图谱；气相色谱

The L9(34) orthogonal design was used to optimize the factors in the process of inclusion.

采用L9(34)正交设计法对挥发油包合过程中各因素进行考察。

By steam distillation and petroleum ether extraction,respectively,and the chemical constituents of the volatile oils were analyzed and identified by GC-MS.

分别采用水蒸气蒸馏和石油醚萃取法提取白花茵陈中的挥发油，并通过GC-MS对其化学成分进行了分析鉴定。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。