Method for rapidly screening stoved flos farfarae

Abstract

The invention belongs to the technical field of detection of traditional Chinese medicinal materials, and particularly relates to a method for rapidly screening stoved flos farfarae. The method comprises the following steps: pulverizing a flos farfarae medicinal material to be distinguished, sieving to prepare a test sample, taking a proper amount of sample powder, adding methanol, carrying out ultrasonic extraction to obtain a test sample solution, and analyzing the test sample solution by using a liquid chromatography-mass spectrometry technology; according to the mass spectrum data of the test sample, screening whether the test sample contains any one or more of the characteristic diagnosis ions or not through the excimer ion peak and the secondary mass spectrum information of a targetproduct; if the characteristic diagnosis ions are detected, determining that the flos farfarae is stoved flos farfarae; and if the characteristic diagnosis ions are not detected, determining that theflos farfarae is unstoved flos farfarae. The flos farfarae stoving screening method established by the invention can be used for quickly and accurately identifying whether flos farfarae is stoved or not. Even if SO2 residues meet relevant provisions of Chinese Pharmacopoeia, whether the flos farfarae medicinal material is subjected to stoving or not can be accurately identified through the diagnosis ions determined by the method.

Description

technical field [0001] The invention belongs to the technical field of detection of Chinese medicinal materials, and in particular relates to a method for quickly screening sulfur-fumigated coltsfoot flowers. Background technique [0002] Sulfur fumigation is a traditional method for the processing and maintenance of Chinese medicinal materials. At present, sulfur fumigation has been used in the processing of various medicinal materials, such as sulfur fumigated ginger and sulfur fumigated Atractylodes macrocephala. SO produced by sulfur combustion during sulfur fumigation 2 It is a strong reducing agent, which can bleach and prevent some chemical reactions of discoloration, accelerate drying, and kill most bacteria. [0003] Coltsfoot flower is the dry flower bud of the Compositae plant Coltsfoot (Tussilago farfara L.), warm in nature, pungent, slightly bitter, has the effect of moistening the lungs, relieving cough and reducing phlegm. New chronic cough. Studies have sh...

AI Technical Summary

Problems solved by technology

It has been reported in the literature that sulfur fumigation can also lead to changes in the chemical composition of medicinal materials, which will affect the effectiveness and safety of medicinal materials

Therefore, even if the medicinal materials SO after sulfur fumigation 2 The residual amount is qualified, but its internal chemical composition has changed, that is, purely based on SO 2 Residues cannot determine whether the medicinal materials have been sulfur-fumigated

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