Method for extracting and determining Chinese medicine Schisandra chinensis
A determination method and technology of Schisandra chinensis, which are applied in pharmaceutical formulations, measuring devices, medical preparations containing active ingredients, etc., can solve the problem of lack of scientific standards and basis, lack of determination methods, and low extraction efficiency for extract testing of drug efficacy analysis. To solve the problem, to achieve the effect of scientific and reasonable method, convenient operation, and increase the concentration of active ingredients
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Example Embodiment
[0007] Example one:
[0008] Method for extracting schisandra (liu) extract from schisandra
[0009] The schisandra is crushed into coarse powder, soaked in 75% ethanol for 48 hours, percolated, and added with ethanol at a certain speed (3ml / kg·min) while percolating, percolating until it is basically colorless, and concentrating under reduced pressure to a thick paste.
[0010] Measuring the content of schisandra chinensis extract by high performance liquid chromatography
[0011] The chromatographic conditions are as follows: octadecyl-bonded silica gel is used as the filler; methanol-water (76:24) is used as the mobile phase, the detection wavelength is 250nm, and the theoretical plate number should not be less than 3000 based on the peak of schisandrin alcohol.
[0012] Preparation of reference substance solution Take 2 mg of schisandrin A reference substance, accurately weigh it, and place it in a 100ml measuring flask, dissolve it with methanol, dilute to the mark, and shake...
Example Embodiment
[0015] Embodiment two:
[0016] Method for extracting schisandra (liu) extract from schisandra
[0017] The schisandra is crushed into coarse powder and soaked in 80% ethanol for 48 hours, percolated, and added with ethanol at a certain speed (4ml / kg·min) while percolating, percolating until it is basically colorless, and concentrating under reduced pressure to a thick paste.
[0018] The method for measuring the content of Schisandra chinensis extract using high performance liquid chromatography is the same as in Example 1.
Example Embodiment
[0019] Embodiment three:
[0020] Method for extracting schisandra (liu) extract from schisandra
[0021] The schisandra is crushed into coarse powder and soaked in 85% ethanol for 48 hours, percolated, and added with ethanol at a certain speed (5ml / kg·min) while percolating, percolating until it is basically colorless, and concentrating under reduced pressure to a thick paste.
[0022] The method for measuring the content of Schisandra chinensis extract using high performance liquid chromatography is the same as in Example 1.
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