Comparison of Various Dilutions and Solid-Phase Extraction Cleanup on the Determination of Ephedrine-Type Alkaloids and Internal Standard Recovery in Ephedra Botanical Raw Material and Powdered Extract

Author： Trujillo William A.   Sorenson Wendy R.   Laluzerne Paul S.   Scheuerell Chad R.  

Publisher： AOAC International

ISSN： 1944-7922

Source： Journal of AOAC International, Vol.88, Iss.4, 2005-07, pp. : 1028-1047

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