Acne ointment as well as preparation method and quality detection method thereof
A quality inspection method and ointment matrix technology, which can be used in ointment delivery, measuring devices, pharmaceutical formulations, etc., and can solve problems such as inconvenient use
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Embodiment 1
[0113] Embodiment 1 of the present invention: preparation of acne ointment:
[0114] Take 25g each of sulfur and rhubarb, crush them into very fine powder, grind them evenly with a small amount of glycerin, and set aside; take another 120g of stearic acid, 40g of glyceryl monostearate, 194g of castor oil and 1g of ethyl p-hydroxybenzoate, and put them in a container heat and melt at 50-60°C to obtain an oil phase, keep warm for later use; then take 100g of glycerin, 15g of triethanolamine, and 480g of water, put them in another container, heat and melt at 50-60°C to obtain a water phase; Slowly add to the water phase, stir continuously, mix well, let cool to room temperature, make cream base, then mix with the above-mentioned medicinal powder evenly, grind to make fine ointment 1000g, pack separately, and obtain the acne cream according to the present invention ointment. The ointment is for external use, smeared on the affected part, 2-3 times a day.
Embodiment 2
[0115] Embodiment 2 of the present invention: preparation of acne ointment:
[0116] Take 20g each of sulfur and rhubarb, crush them into very fine powder, grind them evenly with a small amount of glycerin, and set aside; take another 120g of stearic acid, 40g of glyceryl monostearate, 194g of castor oil and 1g of ethyl p-hydroxybenzoate, and put them in a container heat and melt at 50-60°C to obtain an oil phase, keep warm for later use; then take 100g of glycerin, 15g of triethanolamine, and 480g of water, put them in another container, heat and melt at 50-60°C to obtain a water phase; Slowly add it into the water phase, stir continuously, mix well, let it cool to room temperature, and make a cream base, then mix it with the above-mentioned medicinal powder evenly, grind it to make an ointment, and pack it separately to get an acne ointment. The ointment is for external use, smeared on the affected part, 2-3 times a day.
Embodiment 3
[0117] Embodiment 3 of the present invention: the quality detection method of acne ointment of the present invention comprises:
[0118] Identification: (1) Take 2.5g of this ointment, add 20ml of water, heat to dissolve, let cool, discard the supernatant, add 20ml of water, heat to dissolve, filter with No. Burning on the flame, the flame is blue, and has a special pungent smell of sulfur dioxide.
[0119] (2) Take 4g of this ointment, add 30ml of methanol, sonicate for 20 minutes, filter, take 5ml of the filtrate, evaporate to dryness, add 10ml of water to the residue to dissolve, add 1ml of hydrochloric acid, heat in a water bath for 30 minutes, cool immediately, and wash with ether Divide into 2 extractions, 20ml each time, combine the ether solution, evaporate to dryness, add 1ml of chloroform to the residue to dissolve, and use it as the test solution; take another 0.1g of rhubarb reference drug, and make the reference drug solution in the same way; then take rhein For ...
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