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- limonene monoepoxide 单环氧柠檬烯
- All Ingredients:Melaleuca Alternifolia (Tea Tree) Leaf Oil, Limonene. 成分:叶白千层(茶树)叶油,柠檬烯。
- The limonene will remain liquid and be washed away during filtration. 柠檬烯会留在液体中,而且会在过滤中被洗去。
- There're many techniques of extracting limonene from the peels of oranges,but all involves organic impregnant. 从橙皮中提取柠檬烯的方法很多,但是都离不开有机溶剂提取。
- Limonene needed in recycling foamed polystyrene was extracted from the ear of schizonepeta tenuifolia using ligroin. 本文研究从荆芥穗中提取回收聚苯乙烯所需的柠檬烯,其方法是溶剂萃取。
- Limonene,a natural and functional monoterpene,is used as a flavor and fragrance additive in food widely. 柠檬烯是一种天然的功能单萜,在食品中作为香精香料添加剂被广泛使用。
- You will obtain infrared spectra of the carvone and limonene fractions and interpret the results. 你将得到香芹酮和柠檬烯馏份的红外光谱图。并且要解析其结果。
- If the laboratory is warm be sure to check for limonene distillation before turning on the heat source. 如果实验室是和暖的话,在打开热源的时候要检查一下柠檬烯的蒸馏情况。
- The peels of oranges contain abundant oil,containing 90% limonene which is a kind of widely used crude spicery. 橙皮中含有大量的橙皮油,橙皮油中含有90%25的柠檬烯,柠檬烯是一种用途广泛的天然香料。
- 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。
- This article is based on cycling economy and green chemistry theory,and studies two kinds of green extracting limonene from the peels of oranges. 本文从循环经济、绿色化学理念出发,研究了两种从橙皮中提取柠檬烯无害化的提取方法。
- You will separate the carvone from the higher-boiling and lower-boiling impurities (such as limonene), via a vacuum distillation. 你将会通过真空蒸馏法,把香芹酮中较高沸点和较低沸点的杂质(如柠檬烯)分离开。
- 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。
- A series of waterborne curing agents with different phosphorus content are synthesized by capping the adduct of epoxy resin and diethylenetriamine with diphenyl chlorophosphate(DPCP) and monoepoxide. 采用环氧树脂与二乙烯三胺反应生成端胺基环氧-胺加成物,再经氯磷酸二苯酯(DPCP)与单环氧化合物封端和成盐,合成了一系列不同磷含量的新型水性环氧自乳化固化剂。
- The property of limonene and ist main applications are introduced with a detailed description of methods of extraction of the essential oil from citrus skin and the techniques of preparation of high purity limonene. 介绍?烯的性质及主要用途 ,详细介绍柑桔类果皮精油的提取方法 ,同时介绍高纯度?烯的制取方法。
- 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。
- 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。
- Results The limonene is the common component in every sample,but additional higher content of 2-methyaminomethyester-benzoic acid was only found in the volatile sample from Xinhui. 结果不同产地陈皮挥发油都含有柠檬烯主成分,但新会陈皮存在一个含量较高的2-甲氨基-苯甲酸甲酯成分。
- The main product of isomerization reaction was camphene and its by-products were limonene, carene and tricyclene etc.The factors influencing the isomerization reaction were investigated. 异构化反应的主产物为莰烯,副产物主要是苧烯、蒈烯、三环烯等。
- Thirty-nine compounds have been identified and limonene was the main constituent, which was further proved from GC/FTIR method.Twenty-five constituents are reported for the first time. 英文摘要: This paper reports the study of the chemical compositions of top note oil of Bergamot; a citrus plant by means of GC/MS/DS technique.