柠檬烯

You will use gas chromatography and refractometry to check the purity of your distillate and to estimate the relative concentrations of limonene and carvone in the oil.

你将用到气相色层分析和折射仪去检测你的蒸馏物的纯度。从而估计在油中柠檬烯和香芹酮的相对浓度。

By measuring the refractive index of the original oil, limonene and carvone fractions, you can estimate the purity of the respective fractions and the composition of the original oil.

通过测量原油，柠檬烯和香芹酮馏份的折光率，你可以估计一下原油的组份和各个馏份的纯度。

Plug in your data and determine the value of xcarvone for the limonene and carvone distillation fractions and the oil itself. Compare these results with those obtained by GC.

把你的数据组合起来，然后确定在柠檬烯，香芹酮馏份和油本身的xcarvone的值，将这些数据和气相色层分析的数据比较一下。

From the gas chromatography, report the percentages of limonene and carvone in your original sample and in the fractions following distillation.

从气相色层析分析中，回报在你的原样品和通过蒸馏所得的馏份中所含柠檬烯和香芹酮的百分含量。用蒸馏法分离这些组份的效率有多高呢？

Save a small portion (5 drops) of your original essential oil sample and of the distilled limonene and carvone fractions for Gas Chromatography and Refractive Indexes measurements.

留下一小部份(5滴)的原精油样品和蒸馏过的柠檬烯和香芹酮馏份，作为气相色层分析和折光率的测定用。

DAY 1: Distillation and Gas Chromatography: WORK in PAIRS. Split evently the limonene and carvone fractions for the derivatization step.

第一天：蒸馏和气相色层分析：以对为单位工作，一组分一个柠檬烯一组分一个香芹酮馏份作为衍生化步骤

Under ultra high pressure, limonene was converted to α-terpineol and carvone respectively via acid catalysis and oxidation reaction.

超高压处理橙汁使其中柠檬烯在高压下发生水合、氧化反应分别生成α-松油醇和香芹酮。

If the peak absorbances are low, place an additional few drops of the limonene or carvone on the IR card, and re-record the spectrum.

如果峰的吸收度低的话，可以在红外卡上额外加入几滴柠檬烯或香芹酮，然后再记录其谱图。

Dead Sea Salt, Sea Salt, Parfum**(Geraniol, Citronellol, Limonene, Linalool),Polyglyceryl-10 laurate, Field Horsetail Extract*, Witch Hazel Extract*, Rosemary Extract*, Seaweed Extract Algae

海盐，纯天然有机香水（香叶醇，香茅醇，柠檬烯，芳樟醇），聚甘油-10 月桂酸酯，有机问荆菜提取物，有机金缕梅萃取物，有机迷迭香精油，海藻提取物。

Part of the findings shows the composition of pythoncidere is similar to that of the steam-distilled Cryptomeria japonica essential oil, based upon which an experiment about the Cryptomeria japonica essential oil's effect on animals is conducted. This leads to a further finding that the major element of terpene "limonene"is quite effective to central nervous system, and it can be hypnotic, anxiolytic and analgesic.

该研究还发现芬多精的组成与利用水蒸气蒸馏的柳杉精油的成分相类似，於是进一步以柳杉精油进行动物试验，发现了柳杉中的芬多精及其主要的萜类成分－「柠檬烯」，对动物中枢神经系统有相当大的影响，而且具有安眠、抗焦虑及镇痛的功效。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。