Method for analyzing water solubility essential oil component in osmanthus fragrans lour
A technology of osmanthus and water samples, which is applied to the analysis of water-soluble essential oil components in osmanthus by gas chromatography/mass spectrometry, and the in-situ generation of carbon dioxide gas by ultrasound to assist in the field of dispersion liquid-liquid microextraction, which can solve the problem of small enrichment multiples and limited large volume. Problems such as application of aqueous solution samples and reduction of extraction efficiency, to achieve the effect of short operation time, simple operation and short time-consuming
Active Publication Date: 2019-06-14
ZHEJIANG UNIV OF TECH
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Problems solved by technology
However, all of the above methods require centrifugation to separate the aqueous solution from the organic solvent. On the one hand, the application of large-volume aqueous solution samples is limited, and on the other hand, the enrichment factor is small.
In addition, the use of dispersant will also reduce the extraction efficiency
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Embodiment 1
[0042] Embodiment 1: the analytical method of silver osmanthus water-soluble essential oil composition
[0043] (1) Preparation of Silver Osmanthus Aromatic Water and Soaking Water
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The invention provides a method for analyzing water solubility essential oil component in osmanthus fragrans lour using an ultrasonic in-situ generation carbon dioxide gas bubbling assisted and dispersion liquid microextraction technology combination gas chromatography / mass spectrum method. According to the method for analyzing water solubility essential oil component in osmanthus fragrans lour, the ultrasonic in-situ generation carbon dioxide gas bubbling assisted demulsification and dispersion liquid microextraction technology combination is firstly adopted, the problem that centrifugation is used for demulsification in a traditional dispersion liquid microextraction method is solved, the method has the characteristics that enrichment ratio is high, and time consumption is short, an ultrasonic bubbling assisted demulsification technology is adoped, thus a emulsion quickly becomes clear, and extra centrifugal equipment is not needed, equipment needed by the method is simple, the operation is simple and convenient, and operation time is short, and the method can be applied to preprocessing operation of samples with different sizes, the method can be combined with practice, is a novel method capable of fast efficient extracting the water solubility essential oil component in the osmanthus fragrans lour, and provides a novel means for extracting the water solubility essential oilcomponent in other plants.
Description
(1) Technical field [0001] The invention relates to a method for analyzing water-soluble essential oil components in osmanthus fragrans, in particular to a method for analyzing water-soluble essential oil components (aromatic water) in osmanthus fragrans by ultrasonic in-situ generation of carbon dioxide gas bubbling-assisted dispersion liquid-liquid microextraction technology combined with gas chromatography / mass spectrometry and immersion of volatile components in water) method. (2) Background technology [0002] Osmanthus fragrans, a plant belonging to the genus Oleaceae Oleaceae, is widely distributed in China, Japan, Southeast Asia and some European countries. Osmanthus fragrans has a cultivation history of 2,500 years in my country and is one of the ten traditional famous flowers in my country. Osmanthus fragrans was known as the tree of immortals as early as the Eastern Han Dynasty because of its special fragrance. "Wu Gang Cutting Osmanthus" is a well-known myth. It...
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Login to View More IPC IPC(8): G01N30/06G01N30/02
Inventor 李祖光聂晶赵奕萍李上
Owner ZHEJIANG UNIV OF TECH