作者: M. Brolis , B. Gabetta , N. Fuzzati , R. Pace , F. Panzeri
DOI: 10.1016/S0021-9673(98)00697-9
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摘要: … A high-performance liquid chromatography (HPLC) method … by an aqueous phosphoric acid–acetonitrile–methanol gradient … was prepared by hot methanol extraction of dried flowering …