Colloidal bismuth tartrate medicine and preparation method and use thereof
A technology of bismuth tartrate and colloid, which is applied in the directions of pharmaceutical formulations, drug combinations, active ingredients of anhydride/acid/halide, etc. It can solve the problems of low product yield, poor drying effect, and failure to obtain fine powder, etc., and achieve product yield. High efficiency, reduced pollution, and small particle size
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Embodiment 1
[0060] Suspend 25g of bismuth oxide in 15ml of warm water, and dissolve 5g of tartaric acid in 8ml of water, add it to the bismuth oxide and fully stir the reaction to dissolve. Put the reaction solution in a microwave reactor, add 5mg of surfactant (polyoxyethylene stearate), 4mg of emulsifier (Pingpingjia), add low methoxy-D-galacturonic acid, react with microwave for 5h, centrifugal spray Dried to obtain microcrystalline fine powder (15-60 μm), after measurement, its sedimentation volume ratio is 100%-98%, and the intrinsic viscosity number [η] is 132ml / g. Fill it into hard capsules and get ready.
Embodiment 2
[0062] Dissolve 2.5g of bismuth oxide in 10ml of hot water with sorbitol, add it into 5g of tartaric acid under stirring, stir to dissolve, put it in a microwave synthesis machine, add 4mg of surfactant (Tween-80), 5mg of emulsifier (COP), add low methoxy-D-galacturonic acid, microwave reaction for 4h, centrifugal spray drying to get microcrystalline fine powder (10-100μm), fill it into hollow capsules, and obtain.
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