蒸馏法

Essential oils were extracted from Mentha haplocalyx Briq. by steam distillation and supercritical CO2 extraction.

采用水蒸气蒸馏法和超临界CO2萃取法从薄荷中提取挥发油，并用GC-MS技术对其化学成分进行了分析。

An improved method of synthesizing trimethyl orthoformate through azeotropic distillation by taking sodium methoxide in methanol and chloroform as raw materials has been presented by the author.

摘 要：介绍了以甲醇钠甲醇溶液与氯仿为原料，采用共沸蒸馏法制备原甲酸三甲酯的改进工艺。

We provide the complete technical service for the distillation method production of the vegetable natural spices such as white michelia oil.

为植物性天然香料如白兰鲜花油等的蒸馏法生产提供全套技术服务。

A new method is presented for synthesis of organosilicon compounds directly from precipitated white carbon black by reduced pressure distillation.

该文研究了以沉淀白炭黑为原料，采用减压蒸馏法直接合成六配位体有机硅化合物的新方法。

Results Nine compounds from supercritical CO2 extraction were identified and the main constituents were pentadecane, ethyl pmethoxycinnamate and ethyl cinnamate. Twentyeight compounds from water distillation were identified and the main constituents were δ3carene, ethyl pmethoxycinnamate and ethyl cinnamate.

结果 沙姜超临界CO2萃取物中分离鉴定出9种化合物，主要成分为十五烷、肉桂酸乙酯、对甲氧基肉桂酸乙酯等；水蒸气蒸馏法中分离鉴定出28种化合物，主要成分为δ3蒈烯、肉桂酸乙酯和对甲氧基肉桂酸乙酯等。

Results Nine compounds from supercritical CO2 extraction were identified and the main constituents were pentadecane, ethyl p-methoxycinnamate and ethyl cinnamate. Twenty-eight compounds from water distillation were identified and the main constituents were δ-3-carene, ethyl p-methoxycinnamate and ethyl cinnamate.

结果 沙姜超临界CO2萃取物中分离鉴定出9种化合物，主要成分为十五烷、肉桂酸乙酯、对甲氧基肉桂酸乙酯等；水蒸气蒸馏法中分离鉴定出28种化合物，主要成分为δ-3-蒈烯、肉桂酸乙酯和对甲氧基肉桂酸乙酯等。

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 essential oil was extracted by the water streem distillation . And the components of the essential oil from Sonchus brachyotus were identified by GC-MS. Result: 36 components were identified and represented 89.49% of the peak of the essential oil.

采用水蒸气蒸馏法提取长裂苦苣菜挥发油，然后采用气相色谱-质谱联用仪分析和保留指数分析相结合的方法鉴定其挥发油的化学成分，结果：共鉴定出36种成分，所鉴定的组分占挥发油总离子流色谱峰面积的89.49%。

The extracts of Torreya grandis epispem were obtained by both supercritical CO2 extraction and steam distillation, and their chemical compositions were analyzed by GC-MS qualitatively and quantitatively.

分别采用超临界CO2萃取法和水蒸气蒸馏法提取香榧外种皮提取物，并采用GC-MS分析手段对提取物的化学组成进行了定性和定量测定。

The volatile oil of C. uncinata was extracted by steam distillation and its chemical composition was analyzed and identified by gas chromatography-mass spectrometry.

方法］采用水蒸汽蒸馏法提取柱果铁线莲挥发油，通过气相色谱-质谱联用技术对挥发油的化学成分进行分析、鉴定。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失