Thin-layer identification method of leonurus in Yi Xue An particles
A thin-layer identification and Yixuean technology, applied in measuring devices, instruments, scientific instruments, etc., can solve the problems of effective control of drug quality, and the analysis method of motherwort has not yet been established.
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Embodiment 1
[0013] Take 15g of finished Yixuean granules, add 300ml of cold absolute ethanol, shake and extract for 30min, filter, evaporate the filtrate to dryness, add 4ml of absolute ethanol to dissolve the residue, and use it as the test solution;
[0014] Take an appropriate amount of stachydrine hydrochloride reference substance, add absolute ethanol to make a solution containing 0.1mg per 1ml as the reference substance solution;
[0015] According to the thin-layer chromatography experiment of appendix VIB of "Chinese Pharmacopoeia" 2010 edition, draw respectively 10 μ l of the test solution and the reference solution, respectively spot on the same silica gel G thin-layer plate, with a volume ratio of 6:6: 1 mixed solution of acetone, absolute ethanol, and concentrated hydrochloric acid is developed as a developing agent, taken out, dried, sprayed with improved bismuth iodide potassium chromogen, and heated to make the spots clear in color. On the corresponding position of...
Embodiment 2
[0017] Take 15g of finished Yixuean granules, add 200ml of cold absolute ethanol, shake and extract for 30min, filter, evaporate the filtrate to dryness, add 2ml of absolute ethanol to dissolve the residue, and use it as the test solution;
[0018] Take an appropriate amount of stachydrine hydrochloride reference substance, add absolute ethanol to make a solution containing 0.1mg per 1ml as the reference substance solution;
[0019] According to the thin-layer chromatography experiment of appendix VIB of "Chinese Pharmacopoeia" 2010 edition, draw respectively 10 μ l of the test solution and the reference solution, respectively spot on the same silica gel G thin-layer plate, with a volume ratio of 6:6: 1 mixed solution of acetone, absolute ethanol, and concentrated hydrochloric acid is developed as a developing agent, taken out, dried, sprayed with improved bismuth iodide potassium chromogen, and heated to make the spots clear in color. On the corresponding position ...
Embodiment 3
[0021] Take 15g of finished Yixuean granules, add 300ml of cold absolute ethanol, shake and extract for 30min, filter, evaporate the filtrate to dryness, add 3ml of absolute ethanol to dissolve the residue, and use it as the test solution;
[0022] Take an appropriate amount of stachydrine hydrochloride reference substance, add absolute ethanol to make a solution containing 0.1mg per 1ml as the reference substance solution;
[0023] According to the thin-layer chromatography experiment of appendix VIB of "Chinese Pharmacopoeia" 2010 edition, draw respectively 10 μ l of the test solution and the reference solution, respectively spot on the same silica gel G thin-layer plate, with a volume ratio of 6:6: 1 mixed solution of acetone, absolute ethanol, and concentrated hydrochloric acid is developed as a developing agent, taken out, dried, sprayed with improved bismuth iodide potassium chromogen, and heated to make the spots clear in color. On the corresponding position ...
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