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AIM To optimize the TLC identification method for Cirsii Herba and to study the changes in quality properties"carbonizing retains characteristics"of Cirsii Herba Carbonisata.METHODS After the improvement of thin layer plate and solvent in the TLC identification based on the Chinese Pharmacopoeia 2020 Edition for Cirsii Herba,Cirsii Herba Carbonisata had its TLC identification method and UPLC fingerprint established for the determination of its content of buddleoside and acacetin as well.RESULTS We used silica gel G plate,and the solvent of toluene-acetone-formic acid-methanol(6 ∶ 3 ∶ 0.5 ∶ 2.5)for TLC identification of Cirsii Herba.The content variations of buddleoside and acacetin in Cirsii Herba and its differently charred products were consistent with the result of the TLC identification.CONCLUSION The improved TLC identification method for Cirsii Herba is of lower cost and less solvent toxicity compared to the method in the Chinese Pharmacopoeia 2020 Edition,and can identify the changes in quality properties"carbonizing retains characteristics"of differently charred Cirsii Herba,therefore it can be used to control the quality of Cirsii Herba Carbonisata in the market.
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OBJECTIVE: To study the chemical constituents of Zhishi Xiebai Guizhi decoction and its single agent by high performance liquid chromatography-mass spectrometry to provide a scientific basis for the quality evaluation and control. METHODS: Agilent XDB-C18(4.6 mm×250 mm, 5 μm) column was used for HPLC analysis with acetonitrile-water as mobile phase by gradient elution. Using liquid chromatography-mass spectrometry technology to collect data in positive and negative ion mode, combined with literature reports, the main chemical components of Zhishi Xiebai Guizhi decoction were analyzed and identified. RESULTS: A total of 19 compounds were identified from Zhishi Xiebai Guizhi decoction. The main components are naringin, neohesperidin, etc. The main component types include alkaloids, steroidal saponins, glycosides, flavonoids, etc. CONCLUSION: This study comprehensively clarified the chemical composition of Zhishi Xiebai Guizhi decoction, and it has important reference value for the identification and quality evaluation of Zhishi Xiebai Guizhi decoction.