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Process for the extraction of ginkgo leaves from ginkgo leaves and their purification
Process for the extraction of ginkgo leaves from ginkgo leaves and their purification
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机译:从银杏叶中提取银杏叶的方法及其纯化
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摘要
A method of isolating ginkgolides from the leaves of the Ginkgo tree adjusts the pH of an aqueous solution of an extract of the leaves of Ginkgo tree, extracts the solution, separates the solution into a layer of aqueous solutioni and a layer of organic solvent, dehydrates and dries the layer of organic solvent, adjusts the pH of the seperated layer of aqueous solution, extracts, dehydrates, and dries it, dissolves the obtained dry powders, adds an aqueous solution of lead acetate, removes the precipitate and concentrates the filtrate.
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