Unlock instant, AI-driven research and patent intelligence for your innovation.
Method for detecting chemical compositions in dendranthema lavandulifolium essential oil
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A Shennong chrysanthemum, chemical composition technology, applied in the field of analytical chemistry, can solve the problem of not many chemical components, and achieve the effect of good reproducibility and accurate method
Inactive Publication Date: 2012-10-24
HUBEI CHINA TOBACCO IND
View PDF0 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, at present, there are few basic researches on the chemical substances of Shennongxiangchrysanthemum, and there are not many chemical components that can be identified by gas chromatography-mass spectrometry in the volatile oil of Shennongxiangchrysanthemum extracted by conventional steam distillation.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0023] Extraction of volatile oil of Shennong chrysanthemum After drying the fresh flowers of Shennong chrysanthemum, weigh 200g of coarse powder, add 12 times the amount of water, and extract volatile oil according to the determination method of volatile oil in appendix XD of Chinese Pharmacopoeia (2005 edition), continuously extract for 12h, and collect volatile oil.
[0024] Preparation of the test solution Take 1.10g of Shennong chrysanthemum volatile oil, add 10mL of ether to dissolve, transfer to a separatory funnel, shake and extract with 1% hydrochloric acid solution, 10mL each time, extract 3 times, combine the acid water and mix Add concentrated ammonia test solution to adjust the pH value to 8, shake and extract with diethyl ether, 10 mL each time, extract 3 times, combine the diethyl ether solution and concentrate to 10 mL, as the test sample I solution. The remaining solution after extraction with the above 1% hydrochloric acid solution was shaken and extracted wit...
Embodiment 2
[0027] Extraction of volatile oil of Shennong chrysanthemum After drying the fresh flowers of Shennong chrysanthemum, weigh 200g of coarse powder, add 12 times the amount of water, and extract volatile oil according to the determination method of volatile oil in appendix XD of Chinese Pharmacopoeia (2005 edition), continuously extract for 12h, and collect volatile oil.
[0028] Preparation of the test solution Take 1.60g of Shennong chrysanthemum volatile oil, add 15mL of ether to dissolve, transfer to a separatory funnel, shake and extract with 1% hydrochloric acid solution, 15mL each time, extract 4 times, combine the acid water and Add concentrated ammonia test solution to adjust the pH value to 8, shake and extract with diethyl ether several times, 15 mL each time, extract 4 times, combine the diethyl ether solution and concentrate to 15 mL, as the test sample I solution. The remaining solution after the above 1% hydrochloric acid solution extraction was shaken and extracte...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Login to View More
Abstract
The invention discloses a method for detecting chemical compositions in dendranthema lavandulifolium essential oil, belonging to the analytical chemistry field. In the method, the dendranthema lavandulifolium essential oil to be detected is processed as follows: (1) adding ethyl ether to performance dissolution, completely extracting by hydrochloric acid with the concentration of 1%, and then completely extracting by ethyl ether to obtain the solution of a test article I; (2) completely extracting the residual solution extracted by the hydrochloric acid with the concentration of 1% by sodium bicarbonate solution with the concentration of 5%, and then completely extracting by ethyl ether to obtain the solution of a test article II; (3) completely extracting the residual solution extracted by the sodium bicarbonate solution with the concentration of 5%, then completely extracting by sodium hydroxide with the concentration of 1%, and finally completely extracting by ethyl ether to obtainthe solution of a test article III; and (4) concentrating the residual solution extracted by the sodium hydroxide with the concentration of 1%, adding ethyl ether for constant volume, taking the solution after constant volume as the solution of a test article IV; respectively carrying out GC-MS analysis on the solutions of the test articles I, II, III and IV to determine chemical components contained therein. The method is accurate and reliable, and has good repeatability, wherein RSD is less than 10%.
Description
technical field [0001] The invention belongs to the field of analytical chemistry and relates to a method for detecting chemical components in the volatile oil of Shennong chrysanthemum. Specifically, it relates to a method for qualitatively identifying chemical components in the volatile oil of Shennong chrysanthemum by using gas chromatography-mass spectrometry after separating the volatile oil of Shennong chrysanthemum by liquid-liquid extraction technology. Background technique [0002] Shennongxiangju Dendranthema indicum (L.) Des Monl.var aromaticum Q.H.Liuet S.F.Zhang. is a new variety of Dendranthema in the family Asteraceae. It is a unique plant in Shennongjia. It is produced in Shennongjia forest area, Hubei Province, distributed at an altitude of 1200 meters Above the sunny open hillsides, roadsides, rock crevices, and open spaces beside bushes, the whole plant has a special strong aroma, and folks use its flowers and leaves dried in the shade as sachets. In the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More