Method for identifying local wild astragalus membranaceus

Abstract

The invention discloses a method for identifying local wild astragalus membranaceus. The method comprises a step of analyzing characteristic elements in an astragalus membranaceus main root slice by adopting inductively coupled plasma mass spectrometry (ICPMS) to obtain characteristic element fingerprints of astragalus membranaceus and characterizing the repeatability and accuracy of an analysis method by using an astragalus membranaceus standard substance to ensure that obtained data is real and reliable, a step of establishing a multivariate statistical discrimination model of the wild astragalus membranaceus in Shanxi province and other astragalus membranaceus by using partial least squares analysis, a step of analyzing an unknown type of the astragalus mongholicus sample by using the established model, and a step of performing judgment, wherein the accuracy of model prediction is high, and the accuracy of model prediction of the astragalus mongholicus in Shanxi province can reach 100%. The method is simple and rapid to operate, a result is accurate and reliable, the method is suitable for identification of the wild astragalus mongholicus in Shanxi province in astragalus membranaceus with different growth years in Inner Mongolia, Jilin, Gansu and Shanxi production places, and the method can provide a reference for characteristic inorganic element analysis and source researchof the astragalus membranaceus.

Description

technical field [0001] The invention relates to a method for identifying local wild astragalus, belonging to the field of analytical chemistry. Background technique [0002] Astragalus membranaceus is the dried root of the leguminous plant Astragalus membranaceus. It is a kind of traditional Chinese medicinal material with the same origin of medicine and food. It is now widely planted in Inner Mongolia, Gansu, Shanxi, Jilin and other places. The quality of Astragalus membranaceus produced in Shanxi Province is good, and it is also recognized by the industry. In particular, wild Astragalus membranaceus in Shanxi is a purely natural wild growth without artificial intervention. It has high content of active ingredients and good efficacy, which has irreplaceable effects. However, the yield of pure wild Astragalus membranaceus is low, and it is difficult to meet the market demand of Astragalus membranaceus medicinal materials. In order to expand the production, various regions ha...

AI Technical Summary

Problems solved by technology

However, the output of pure wild Astragalus membranaceus is low, and it is difficult to meet the market demand for Astragalus membranaceus medicinal materials. In order to expand production, various regions have promoted and implemented diversified Astragalus membranaceus cultivation methods

Although the cultivation process tries to simulate the environment and growth conditions of wild Astragalus membranaceus, there is still a large gap in the active ingredients and efficacy of cultivated Astragalus membranaceus and wild Astragalus membranaceus, so the economic value of the two is very different. Apart from understanding, it is difficult for other people to judge whether Astragalus membranaceus is a wild variety with better quality only by the appearance of the sample and the thickness of the root.

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