Determination of Caffeine and Caffeine-Related Metabolites in Ephedra-Containing Standard Reference Materials Using Liquid Chromatography with Absorbance Detection and Tandem Mass Spectrometry

Author： Thomas Jeanice B   Sharpless Katherine E   Mitvalsky Staci   Roman Mark   Yen James   Satterfield Mary B  

Publisher： AOAC International

ISSN： 1944-7922

Source： Journal of AOAC International, Vol.90, Iss.4, 2007-07, pp. : 934-940

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