Determination of ephedrine-type alkaloids in dietary supplements by LC/MS using a stable-isotope labeled internal standard.
Gay
M L
ML
US Food and Drug Administration, Center for Food Safety and Applied Nutrition, Washington, DC 20204, USA.
White
K D
KD
Obermeyer
W R
WR
Betz
J M
JM
Musser
S M
SM
D002244:Carbon; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D002853:Chromatography, Liquid / Q000379:methods*; D019587:Dietary Supplements / Q000032:analysis*; D004809:Ephedrine / Q000032:analysis*; D007202:Indicators and Reagents; D007554:Isotopes; D013058:Mass Spectrometry / Q000379:methods*; D011786:Quality Control
D007202:Indicators and Reagents; D007554:Isotopes; D002244:Carbon; D004809:Ephedrine