Method for simultaneously determining contents of three fat-soluble components in red sage root-pseudoginseng preparation
A technology of preparation and usage, applied in the field of simultaneous determination of three fat-soluble components in Danqi preparation, can solve the problems of limited research on lipophilic components, avoid frequent replacement of detection conditions, and improve work efficiency
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Embodiment 1
[0016] Example 1: Detection of campesterol, stigmasterol and β-sitosterol content in Danqi preparation
[0017] (1) Instrument
[0018] TRACE 1310 / TSQ 8000 gas chromatography-mass spectrometry (Thermo, USA), SB-800DTD ultrasonic cleaner (Ningbo Xinzhi Biotechnology Co., Ltd.), analytical balance (BSA224S, Sartorius), 0.22 μm PTFE membrane ( Tianjin Jinteng Experimental Equipment Co., Ltd).
[0019] (2) Reagents and samples
[0020] The reference substances campesterol (purity ≥ 95%), stigmasterol (purity ≥ 95%), β-sitosterol (purity ≥ 95%) and 5α-cholestane were purchased from Sigma Corporation of the United States; BSTFA (bistrifluoroacetamide , containing 1% TMCS (trimethylchlorosilane)) (Supelco); dichloromethane, n-hexane, ethyl acetate, 95% ethanol, concentrated hydrochloric acid, KOH (AR, Sinopharm Chemical Reagent Co., Ltd.). Danqi Tablets (Beijing Tongrentang Technology Development Co., Ltd. Pharmaceutical Factory, batch numbers: 14120431, 14120810, 14120906, 141221...
Embodiment 2
[0041] Determination of campesterol, stigmasterol and β-sitosterol content in embodiment 2 Danqi preparation
[0042] Danqi Tablets, Danqi Soft Capsules and Compound Danshen Dripping Pills of different batch numbers were prepared according to the method of Example 1 for the test solution, and GC-MS analysis was carried out to measure β-sitosterol, stigmasterol and The content of campesterol, the results are shown in Table 1.
[0043] Table 1 Contents of sterols in different Danqi prescriptions (n=3)
[0044]
[0045] The present invention adopts gas chromatography-mass spectrometry (GC-MS) to measure the contents of three fat-soluble components in different Danqi prescription medicines-beta-sitosterol, stigmasterol and campesterol. The method has high accuracy, good reproducibility, and strong applicability. Through retention time and mass spectrometry, the content of these three fat-soluble components in different types of drugs can be accurately determined. It can be se...
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