• 方法:采用水蒸汽蒸馏法提取挥发油

    Method: The essential oil was extracted by steam distillation.

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  • 方法:采用水蒸汽蒸馏法提取挥发油

    METHODS :The essential oil was extracted by steam distillation.

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  • 三步反应后处理时均采用水蒸汽蒸馏

    The steam distillation was applied in three steps.

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  • 水蒸汽蒸馏显脉香茶菜籽中提取挥发油

    The essential oil from Rabdosia nervosa seeds was extracted by steam distillation.

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  • 优化了水蒸汽蒸馏提取洋葱的适宜工艺参数

    The parameters of steam distillation for extracting onion oil were optimized.

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  • 结果蒸汽蒸馏蒸馏不能提取佛手内酯。

    Results: Bergapten wasn't extracted by ways of steam-input distillation and distillation of the material mixed with water.

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  • 方法:用蒸汽蒸馏超临界流体萃取的方法提取挥发油

    METHOD: To extract the volatile oil by steam distillation or supercritical fluid extraction (SFE).

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  • 挥发油的化学成分与用蒸汽蒸馏所得玫瑰精油显著不同

    Its chemical composition is significantly different from rose essential oils obtained by steam distillation.

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  • 介绍了一种简便有效水蒸汽蒸馏装置半微量有机实验中的应用

    The application of a facile and effective steam distillation apparatus in Semi-micro organic experiment is introduced.

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  • 因此丹皮酚提取实验结论为:水蒸汽蒸馏优于乙醇回流

    Therefore, the experimental conclusion of extraction of paeonol was: the steam distillation method was better than the ethanol refluxing method;

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  • 然后蒸汽蒸馏粗苯中进行回收,再加以储藏分送出厂销售。

    The benzole is then recovered from the oil by steam distillation and stored prior to dispatch off site for sale.

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  • 结论水蒸汽蒸馏相比较,超临界萃取具有萃取耗时少优点。

    ConclusionCompared with steam distillation, the supercritical carbon dioxide extraction showed many advantages, such as short extraction time and high extraction yield.

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  • 方法:用水蒸汽蒸馏提取紫色姜挥发油通过气相-质谱联用仪分析研究。

    Methods: A distillation method was used to extract the volatile oil and a gas-mass spectrometer was used to analyze the chemical composition.

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  • 樟树青籽樟树紫籽研究对象 ,采用浸提法与水蒸汽蒸馏提取

    The camphor oil was extracted from roots, branches, fresh and fallen leaves of Cinnamomum camphora by the method of distillation.

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  • 我们对此制备过程进行了改进,萃取法代替水蒸汽蒸馏率达88.6%。

    In our preparation, the process was improved. It is extraction instead of distillation with steam. Yield is 88.6%.

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  • 方法采取超临界CO2萃取、微波萃取水蒸汽蒸馏三种方法提取佩兰挥发油

    Method: The volatile oils were obtained with supercritical CO2, microwave and stream distillation.

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  • 法合成兰素工艺,用水蒸汽蒸馏回收萃余相中的溴,降低了溴消耗定额。

    In the new process of synthesis of vanillin with bromine, the bromine in the wastewater is retrieved by steam distillation. As a result, the bromine consumption is reduced.

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  • 循环相酯化-酯交换-水蒸汽蒸馏技术是以动、植物油为原料制备生物柴油的新工艺。

    Preparation of biodiesel with waste oil from restaurant by circulating gas-phase esterification-transesterification-water vapour distillation was studied.

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  • 实验采用水蒸汽蒸馏法提取鲜姜干姜中的精油,利用GC-MS分析精油的成分。

    The volatile oils of walnut diaphragm were obtained by hydrodistilation and analysed by GC and GC/MS.

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  • 报道了用水蒸汽蒸馏萃取提取挥发性物质,测得卷柏挥发油含量2.85%。

    Distillation extraction method is used for extracting the volatile constituents of the Herba Selaginellae. The average oil yield obtained is 2.85%.

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  • 方法水蒸汽蒸馏水煎浓缩方法制备窦炎合剂,并对150鼻窦炎病例进行疗效观察

    Method By the methods of decoction and concentration, we have prepared the Douyan mixture and carries on the curative effect observation to 150 cases of the sinusitis.

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  • 方法采用常规水蒸汽蒸馏甘肃水产女贞子提取挥发油用气相色谱质联机进行分离鉴定

    METHODS The volatile oil was extracted from Ligustrum lucidum Ait of Gansu by steam distillation, and its ingredients were isolated and identified by gas chromatography-mass spectrometer (GC-MS).

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  • 采用水蒸汽蒸馏大戟科木奶果中提取挥发油,用气相色谱-质谱对挥发油的化学成分进行了分析。

    The essential oils extracted from Baccaurea ramiflora Lour and its chemical constituents were analyzed by GC-MS.

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  • 采用水蒸汽蒸馏,获得杉木生材精油的率为1.57%,尾叶生材精油的得油率为0.02%。

    The essential oil volume was 1.57% and 0.02% extracted from Chinese fir and Eucalyptusgreen wood, respectively, by steaming distillation method.

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  • 物理化学中的溶液沸点升高有机化学实验中的水蒸汽蒸馏看似矛盾实质上它们原理不同

    The boiling point rise of dilute solution in physical chemistry seems to contradict with vapor distillation in experiment of organic chemistry. Actually, they are of different principles.

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  • 水蒸汽蒸馏技术实现生物柴油未反应原料有效分离不需要二次交换反应获得了纯度的生物柴油。

    Biodiesel and material is separated effectively through water vapour distillation, and the high pure degree biodiesel is acquired without double transesterification.

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  • 改进柏木香气质量,主张水蒸汽蒸馏技术取代水上蒸馏,不赞成用干馏法或“红锅”法来制取柏木原油。

    In order to improve the odour quality of cedar wood oil, the water distillation (over water boiler) should be replaced by steam distillation.

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  • 试验树叶提取精油萃取液进行研究,通过三种不同试剂萃取,对水蒸汽蒸馏产物所得萃取来研究其适合度。

    The test is a research on the extraction of distilling essential oil from leaves by comparing efficiency of extraction by three reagents. Those are ether, ethyl acetate and ether from Petroleum.

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  • 方法水蒸汽蒸馏提取挥发油,分别得到不同样品挥发油,以相色谱联用(GC MS)联用技术对其化学成分进行分离鉴定

    METHODS The volatile oils were extracted with steam distillation. The components were separated and identified by GC MS and elucidated on the standard mass spectral data.

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  • 方法水蒸汽蒸馏提取挥发油,分别得到不同样品挥发油,以相色谱联用(GC MS)联用技术对其化学成分进行分离鉴定

    METHODS The volatile oils were extracted with steam distillation. The components were separated and identified by GC MS and elucidated on the standard mass spectral data.

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