目的：建立丹参口服液中原儿茶醛含量的高效液相色谱法（HPLC法）测定方法。
Objective:To establish a content assay method of catechu aldehyde in salvia miltiorrhiza oral liquid by HPLC.
结论：提取时间对清心平肝口服液药材中丹参素的提取率有较大影响。
Conclusion:The tine have a great influence upon the extracting efficiency of przewatanshinquinone.
结论：提取时间对清心平肝口服液药材中丹参素的提取率有较大影响。
Conclusion:The tine have a great influence upon the extracting efficiency of przewatanshinquinone.
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