方法：用水蒸汽蒸馏法和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).
报道了用水蒸汽蒸馏萃取法提取卷柏中挥发性物质，测得卷柏挥发油的含量为2.85%。
Distillation extraction method is used for extracting the volatile constituents of the Herba Selaginellae. The average oil yield obtained is 2.85%.
水蒸汽蒸馏法从显脉香茶菜籽中提取挥发油。
The essential oil from Rabdosia nervosa seeds was extracted by steam distillation.
方法：用水蒸汽蒸馏法提取紫色姜挥发油，并通过气相-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.
方法：采用水蒸汽蒸馏法提取挥发油。
Method: The essential oil was extracted by steam distillation.
此挥发油的化学成分与用水蒸汽蒸馏所得的玫瑰精油显著不同。
Its chemical composition is significantly different from rose essential oils obtained by steam distillation.
方法：采取超临界CO2萃取、微波萃取和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.
方法：采用水蒸汽蒸馏法提取挥发油。
METHODS :The essential oil was extracted by steam distillation.
方法以水蒸汽蒸馏法提取挥发油，分别得到不同样品的挥发油，以气相色谱质谱联用（GC MS）联用技术对其化学成分进行分离和鉴定。
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.
方法采用常规水蒸汽蒸馏法对甘肃天水产女贞子提取挥发油，用气相色谱质谱联机进行分离鉴定。
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).
采用水蒸汽蒸馏法从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.
采用水蒸汽蒸馏法从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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