Detection method for comfortable wash liquid for hemorrhoids
A detection method and a technology of lotion, which are applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of missing and no quantitative detection method of cnidium, etc.
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experiment example 1
[0034] Randomly select 5 batches of hemorrhoidal comfort lotion (batch numbers: 20070911-1, 20070913-1, 20071918-1, 20071103-1 and 20071005-1), and use this method to repeat 5 batches of hemorrhoidal comfort lotion.
[0035] Take 20ml of this product, add ethyl acetate to extract twice, 30ml each time, combine the ethyl acetate solution, evaporate to dryness, add 1ml of methanol to the residue to dissolve, and use it as the test solution. Take another 2 g of licorice reference medicinal material, add 20 ml of water to decoct twice, each time for 0.5 hours, filter, concentrate the filtrate to 20 ml, add ethyl acetate to extract twice, each time 30 ml, combine the ethyl acetate liquid, evaporate to dryness, and the residue Add 1ml of methanol to dissolve, as the reference drug solution. According to the test of thin-layer chromatography (Appendix VIB of the Chinese Pharmacopoeia in 2005), draw 20 μl of each of the above two solutions, and place them on the same silica gel G thin...
experiment example 2
[0040] Randomly select 5 batches of hemorrhoidal comfort lotion (batch numbers: 20070911-1, 20070913-1, 20071918-1, 20071103-1 and 20071005-1), and use this method to repeat 5 batches of hemorrhoidal comfort lotion.
[0041] Take 20ml of this product, add ethyl acetate to extract twice, 30ml each time, combine the ethyl acetate solution, evaporate to dryness, add 1ml of methanol to the residue to dissolve, and use it as the test solution. Another appropriate amount of sophorin reference substance was taken, and 0.5ml of methanol was added to make a saturated solution, which was used as the reference substance solution. According to the test of thin-layer chromatography (Appendix VIB, Chinese Pharmacopoeia, 2005 edition), draw 5 μl of each of the above two solutions, respectively spot on the same polyamide thin-layer plate, use 60% acetic acid as the developing agent, develop, take out, and dry in the air , sprayed with 1% aluminum chloride ethanol solution, dried, and inspecte...
experiment example 3
[0045] Randomly select 5 batches of hemorrhoid comfort lotion (batch numbers: 20070911-1, 20070913-1, 20071918-1, 20071103-1 and 20071005-1), and hemorrhoid comfort lotion according to high performance liquid chromatography (Chinese Pharmacopoeia 2005 Year edition one appendix VI D) Determination.
[0046] 【Content Determination】Determination according to high performance liquid chromatography (Appendix VID of Chinese Pharmacopoeia 2005 Edition).
[0047] Chromatographic conditions and system suitability test use octadecylsilane bonded silica gel as packed column; mobile phase: water-acetonitrile (40:60); detection wavelength is 321nm; column temperature: room temperature. The number of theoretical plates should not be less than 2000 based on the peak of osthole.
[0048] Preparation of reference substance solution Accurately weigh an appropriate amount of osthole reference substance that has been dried under reduced pressure in a phosphorus pentoxide desiccator to constant w...
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