Composition #6: Zhang, Yuchi., Liu, Chunming., Zhang, Zhengkun., Wang, Jing., Wu, Guimei., Li, Sainan. Comprehensive separation and identification of chemical constituents from Apocynum venetum leaves by high-performance counter-current chromatography and high performance liquid chromatography coupled with mass spectrometry . journal of chromatography b-analytical technologies in the biomedical and life sciences, 2010, vol. 878, no. 30, p. 3149–3155. DOI: 10.1016/j.jchromb.2010.09.027.
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