挥发油

Methods GC-MS was used to analyse the chemical constituents of the essential oil of Phlomis medicinalis Diels.

方法采用气相色谱-质谱联用仪对萝卜秦艽块根的挥发油成分进行了分析研究。

Twenty three samples were apparently classified into 4 groups by partial least square-discriminant analysis. A brief list of 20 differential compounds is presented, including cnidilide, 3-n-butylphthalide and butylidene phthalide.

结合偏最小二乘法-判别分析，可以很好地将4个产区的挥发油样品加以区分，并找出20种差异最大的化合物，其中包括4种苯酞类物质。

Result: The yield of S4 was 18.63 % and 29.99 % higher than that of CK1 and CK2, respectively. The contents of volatile oil and pulegone were also higher than those of CK and other strains in this test.

结果：S4品系比CK1增产18.63%，比CK2增产29.99%，达到极显著水平，且挥发油和胡薄荷酮含量也高于其他参比品系和对照；S16品系与CK产量上无显著差异，抗病性比较强。

Tenuifolia in 2007. Method: The test fields were divided into blocks randomly, and the agronomy characters were investigated in harvest time; the content of volatile oil was measured by steam distilation and the pulegone were determined by HPLC.

田间实验采用随机区组设计，收获期调查其主要农艺性状；采用水蒸气蒸馏法测定挥发油含量，HPLC测定胡薄荷酮含量。

The result indicated that it was not easy for PNS alone to penetrating the skin of isolated nude mice, but 1% and 3% volatile oil of Ramulus Cinnamoni possessed the promoting action on percutaneous absorption of PNS.

结果：单纯的三七总皂苷难以透过裸鼠离体皮肤，1%、3%浓度桂枝挥发油对三七总皂苷的透皮吸收均有促进作用。

The effect of volatile oil of Ramulus Cinnamoni on percutaneous absorption of Panax notoginseng saponins was studied on the skin of isolated nude mice, with ginsenoside Rg1 as the index, HPLC methodand Valia-Chien horizontal diffusion cell were used.

采用离体裸鼠皮肤，以人参皂苷Rg1为指标，应用Valia-Chien水平扩散池和HPLC检测法，考察桂枝挥发油对三七总皂苷透皮吸收的影响。

The allelopathic effects of the volatiles, water extracts and volatile oils from the Michelia maudiae fresh leaves on the seed germination and seedling growth of Robinia pseudoacacia, Raphanus sativus and Sorghum sudanense were studied in this paper.

以刺槐、萝卜和苏丹草3种植物作为受体，通过种子萌发及幼苗生长试验，研究7年生深山含笑新鲜叶片自然挥发物、水浸提液和挥发油的化感作用。

Result The extract ratio of volatile oil from Rosmarinus officinalis L.

［目的］研究迷迭香挥发油的成分及其抑菌活性。

Volatile oil from Rosmarinus officinalis L.

结论］迷迭香挥发油具有广谱的抗菌性。

This paper deals with systematic species investigation and quality evaluation of Rosa rugosa in Shandong- province.

本课题对山东玫瑰花进行了系统的品种调查整理和质量评价研究，从本草学考证、栽培及加工方法研究、植物学研究、药材鉴别、含量测定、挥发油成分GC-MS分析等六个方面对其进行了全面考察、研究分析。

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。