Detection method for lung-soothing syrup
A detection method and syrup technology, which can be used in measuring devices, pharmaceutical formulas, medical preparations containing active ingredients, etc., and can solve problems such as difficult control of product quality
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Embodiment 1
[0106] Properties: This product is brown viscous liquid; it tastes sweet and slightly salty.
[0107] Identification: Take 1ml of this product, add 10ml of water, add 1ml of silver nitrate test solution after adding nitric acid to make it acidic, then a white curd-like precipitate will be formed, which can be dissolved 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 make the wet red litmus paper turn blue;
[0109] Take 20ml of this product, dilute to 50ml with water, centrifuge, take the supernatant, and pass the processed D with an inner diameter of 15mm and a height of 12cm. 101 Type macroporous adsorption resin column, eluted with water until the eluent is colorless, discarded the water, then eluted with 70% ethanol 100ml, collect the eluent, evaporate to dryness, add 20ml of water to the residue to dissolve, saturated with water Alcohol extraction 2 times, 20ml ...
Embodiment 2
[0117] Properties: This product is brown viscous liquid; it tastes sweet and slightly salty.
[0118] Identification: Take 1ml of this product, add 10ml of water, add 1ml of silver nitrate test solution after adding nitric acid to make it acidic, then a white curd-like precipitate will be formed, which can be dissolved 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 make the wet red litmus paper turn blue;
[0120] Take 20ml of this product, dilute to 50ml with water, centrifuge, take the supernatant, and pass the processed D with an inner diameter of 15mm and a height of 12cm. 101 Type macroporous adsorption resin column, eluted with water until the eluent is colorless, discarded the water, then eluted with 70% ethanol 100ml, collect the eluent, evaporate to dryness, add 20ml of water to the residue to dissolve, saturated with water Alcohol extraction 2 times, 20ml ...
Embodiment 3
[0123] Properties: This product is brown viscous liquid; it tastes sweet and slightly salty.
[0124] Inspection: It should comply with the relevant regulations of the Chinese Pharmacopoeia 2005 Edition One Appendix IH Syrup;
[0125] Assay: use octadecylsilane bonded silica gel as filler; use acetonitrile:0.1% phosphoric acid solution=9:87 as mobile phase; detection wavelength is 207nm, theoretical plate number should not be less than 3000 based on ephedrine hydrochloride peak ; Take 10mg of ephedrine hydrochloride reference substance, accurately weigh it, put it in a 100ml measuring bottle, add methanol to dilute to the mark, shake well, accurately measure 2ml, place it in a 25ml measuring bottle, add mobile phase to dilute to the mark, shake well, that is Obtain a reference solution containing 8μg of ephedrine hydrochloride per 1ml; accurately measure 10ml of this product, put it in a 100ml measuring flask, add 60ml of methanol, ultrasonically treat it with an ultrasonic cleaner...
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