Detecting method and identifying method for ligusticum wallichii medicinal material
A technology of detection method and identification method, which is applied in material excitation analysis, fluorescence/phosphorescence, etc., can solve the problems of poor specificity, large variation in the content of medicinal materials, and many constraints on promotion and application, and achieves effective detection and good reproducibility.
Inactive Publication Date: 2014-04-23
CHENGDU UNIV OF TRADITIONAL CHINESE MEDICINE
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Problems solved by technology
The content of ligustilide in the crude drug is about 0.6%, accounting for about 58% of the total volatile oil. The content of this component is of certain significance for distinguishing whether it is from the authentic area, but ligustilide can undergo dehydrogenation and oxidation at room temperature , hydrolysis, degradation and other isomerization reactions, the content of medicinal materials changes greatly during storage, and its stability is a concern when it is used as a quality control index; the content of ferulic acid in crude drugs is about 0.1% to 0.2%, However, ferulic acid is a common component of many medicinal plants, and its specificity is poor as a quantitative indicator; while the content of ligustrazine in crude drugs is less than 1 / 10,000, it is not suitable as an index component for quality control of medicinal materials
The use of fingerprints in the quality control of Rhizoma Chuanxiong has also been reported, but its popularization and application is limited due to many restrictive factors
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Embodiment 1
[0022] The detection method of embodiment 1 Rhizoma Chuanxiong of the present invention
[0023] The section of Rhizoma Chuanxiong shows light blue fluorescence under ultraviolet light, and the skin shows brown fluorescence, which is an important feature of traditional physical and chemical identification of Rhizoma Chuanxiong. Ligustilide, ferulic acid and other active ingredients in Rhizoma Chuanxiong are all fluorescent substances. In this paper, fluorescent The total amount of fluorescent substances in Rhizoma Chuanxiong was determined by spectrophotometry.
[0024] (1) Selection of excitation wavelength and emission wavelength
[0025] Take 0.1g of the Rhizoma Chuanxiong sample, accurately weigh it, place it in a 250ml Erlenmeyer flask, add 25ml of ethanol accurately, accurately weigh it, extract it by ultrasonic for 45min, let it cool, and then accurately weigh it, make up the lost weight with ethanol, shake well, After filtration, take 25 μl of the continued filtrate, ...
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The invention provides a detecting method for a ligusticum wallichii medicinal material, and further provides an identifying method for the ligusticum wallichii medicinal material. The detecting method is good in repeatability, can quickly and effectively detect the quality of ligusticum wallichii, and provides guarantee for controlling the quality of the real ligusticum wallichii medicinal material.
Description
technical field [0001] The invention relates to a detection method and an identification method of Chuanxiong medicinal material. Background technique [0002] Chuanxiong, formerly known as Xiongxiong. A traditional Chinese medicine plant, commonly used for promoting blood circulation, dispelling wind and relieving pain, mainly cultivated in Sichuan, Yunnan, Guizhou, Guangxi, Hubei and other places. Ligusticum chuanxiong is pungent, warm, fragrant and dry. When walking but not guarding, it can not only dissipate, but go up to reach the top; enter the blood, go down to reach the sea of blood. It has a wide range of functions of promoting blood circulation and removing blood stasis, suitable for stagnation of various diseases; dispelling wind and relieving pain, has very good effects, and can cure head wind, headache, rheumatic arthralgia and other diseases. The ancients said that Chuanxiong is the qi medicine in the blood, and it is almost said that it has the functions o...
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Inventor 彭成刘友平陈林陈鸿平
Owner CHENGDU UNIV OF TRADITIONAL CHINESE MEDICINE