Simultaneous analysis of trans- and cis-isomers of 2-glucosyloxycinnamic acids and coumarin derivatives in Dendrobium thyrsiflorum by high-performance liquid chromatography (HPLC)-photodiode array detection (DAD)-electrospray ionization (ESI)-tandem mass spectrometry (MS). - Zhang,G.N.; Zhang,F.; Yang,L.; Zhu,E.Y.; Wang,Z.T.; Xu,L.S. (Anal Chim Acta, 2006)