Investigation of Pyrrolizidine Alkaloids and Their N-Oxides in Commercial Comfrey-Containing Products and Botanical Materials by Liquid Chromatography Electrospray Ionization Mass Spectrometry

Author： Altamirano Jorgelina C.   Gratz Samuel R.   Wolnik Karen A.  

Publisher： AOAC International

ISSN： 1944-7922

Source： Journal of AOAC International, Vol.88, Iss.2, 2005-03, pp. : 406-412

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