Polygalacic acid sperm-killing contraceptive suppository for external use and placing device
A polygallic acid and spermicidal technology, which is applied in the directions of suppository delivery, medical preparations containing active ingredients, organic active ingredients, etc., can solve problems such as no research reports yet, and achieve a strong spermicidal effect.
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[0015] The present invention will be further explained below.
[0016] 1. Preparation of Polygala acid extract:
[0017] Take Polygala sample, dry and pulverize, accurately weigh 5g powder, place it in a 300mL Erlenmeyer flask with stopper, add 70% methanol 150mL, soak for 1 hour, shake once every 15 minutes, heat to reflux for 5 hours, and evaporate the extract to dryness Add 200 mL of 10% hydrochloric acid solution to the residue, reflux in a boiling water bath for 2 hours, cool, filter and wash the precipitate with distilled water to neutrality, dissolve the precipitate with methanol and dilute to 200 mL to obtain a sample solution. After removing impurities, the precipitate is dried to obtain 500 mg of white powder. Take 5 mg of white powder, add 5 mL of methanol to dissolve, and use mobile phase to dissolve in a 10 mL volumetric flask. The sample solution is obtained, and the sample is injected for determination under chromatographic conditions.
[0018] Take another 5 mg of ...
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