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Characterization of lysophosphatidylcholine in lipid extracts by hyphenated techniquesJan Willmann; Marco Röben; Sebastian Woynowski; Manfred Spraul; Herbert Thiele; Dieter Leibfritz · 2007
Separation of phospholipid classes by hydrophilic interaction chromatography detected by electrospray ionization mass spectrometryMiriam Schwalbe-Herrmann; Jan Willmann; Dieter Leibfritz · 2010
Characterization of Sphingomyelins in Lipid Extracts Using a HPLC-MS-Offline-NMR MethodWillmann, Jan; Mahlstedt, Kerstin; Leibfritz, Dieter; Spraul, Manfred; Thiele, Herbert · Analytical Chemistry · 2007
Combined Reversed Phase HPLC, Mass Spectrometry, and NMR Spectroscopy for a Fast Separation and Efficient Identification of PhosphatidylcholinesWillmann, Jan; Thiele, Herbert; Leibfritz, Dieter · Journal of Biomedicine and Biotechnology · 2011