Liu Y, Wang M, Xue M, Li Y, Li X, Ruan J, Liu K. Structural elucidation of in vivo metabolites of penehyclidine in rats by the method of liquid chromatography-mass spectrometry, gas chromatography-mass spectrometry and isotope ion cluster. J Chromatogr B Analyt Technol Biomed Life Sci. 2008 Sep 15;873(1):41–50. doi: 10.1016/j.jchromb.2008.07.049. PMID: 18755639.
Structural elucidation of in vivo metabolites of penehyclidine in rats by the method of liquid chromatography–mass spectrometry, gas chromatography–mass spectrometry and isotope ion cluster