7Kurkin V A,Grinenko N A,Zapesochnaya G G,Dubichev A G, Vorontsov E D. TLC and HPLC analysis of syringin in Syringa vulgaris[J]. Chem Nat Comp, 1992,28: 36-39.
8Zhu M,Chen X S,Wang K X. Variation of the lignan content of Schisandra chinensis (Turcz.) Baill. and Schisandra sphenanthera Rehd. et Wils [J]. Chromatographia,2007,66:125 128.