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The present paper studies the solvent potential of aqueous cyclodextrin for hydrophilic and hydrophobic components extraction from Polygonum cuspidatum and an HPLC-PDA-ESI-ITMSn method for the determination of these compounds. A comprehensive comparison study of four extraction techniques was carried out while employing different solvent systems, types of aqueous CDs, 95% ethanol and water, respectively...
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