Detection method for lung-soothing syrup
A detection method and syrup technology are applied in measuring devices, pharmaceutical formulations, medical preparations containing active ingredients, etc., and can solve problems such as difficulty in controlling product quality.
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Embodiment 1
[0106] Properties: This product is a brown viscous liquid; sweet and slightly salty.
[0107] Identification: Take 1ml of this product, add 10ml of water, add nitric acid to make it acidic, add 1ml of silver nitrate test solution, and then form a white curd-like precipitate, which is soluble in ammonia test solution; or
[0108] Take 5ml of this product, add sodium hydroxide test solution to make it alkaline, and heat it to produce ammonia odor, which can turn the wet red litmus paper blue;
[0109] Take 20ml of this product, add water to dilute it to 50ml, centrifuge, take the supernatant, and pass it through the treated D with 15mm inner diameter and 12cm height. 101 type macroporous adsorption resin column, eluted with water until the eluent was colorless, discarded the water, then eluted with 100ml of 70% ethanol, collected the eluate, evaporated to dryness, added 20ml of water to the residue to dissolve, and saturated n-butyl Alcohol extraction 2 times, 20ml each time, c...
Embodiment 2
[0117] Properties: This product is a brown viscous liquid; sweet and slightly salty.
[0118] Identification: Take 1ml of this product, add 10ml of water, add nitric acid to make it acidic, add 1ml of silver nitrate test solution, and then form a white curd-like precipitate, which is soluble in ammonia test solution; or
[0119] Take 5ml of this product, add sodium hydroxide test solution to make it alkaline, and heat it to produce ammonia odor, which can turn the wet red litmus paper blue;
[0120] Take 20ml of this product, add water to dilute it to 50ml, centrifuge, take the supernatant, and pass it through the treated D with 15mm inner diameter and 12cm height. 101 type macroporous adsorption resin column, eluted with water until the eluent was colorless, discarded the water, then eluted with 100ml of 70% ethanol, collected the eluate, evaporated to dryness, added 20ml of water to the residue to dissolve, and saturated n-butyl Alcohol extraction 2 times, 20ml each time, c...
Embodiment 3
[0123] Properties: This product is a brown viscous liquid; sweet and slightly salty.
[0124] Inspection: It should meet the relevant regulations under the item of Appendix IH syrup of the Chinese Pharmacopoeia 2005 edition;
[0125] Content determination: use octadecylsilane bonded silica gel as filler; acetonitrile: 0.1% phosphoric acid solution = 9:87 as mobile phase; detection wavelength is 207nm, and the number of theoretical plates should not be less than 3000 based on the ephedrine hydrochloride peak Get 10 mg of ephedrine hydrochloride reference substance, accurately weighed, put in a 100ml measuring bottle, add methanol to dilute to the mark, shake up, accurately measure 2ml, put in a 25ml measuring bottle, add mobile phase to dilute to the mark, shake up, that is Obtain a reference substance solution containing 8 μg of ephedrine hydrochloride per 1 ml; accurately measure 10 ml of this product, put it in a 100 ml measuring bottle, add 60 ml of methanol, use an ultraso...
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