Simultaneous determination of hypericin and hyperforin in human plasma with liquid chromatography-tandem mass spectrometry - Riedel, Klaus-Dieter; Rieger, Karin; Martin-Facklam, Meret; Mikus, Gerd; Haefeli, Walter E.; Burhenne, Jürgen (Journal of chromatography, 2004)
Gesehen am 19.05.2021