Fig. 4

The 6470 Triple Quadrupole LC/MS data for the determination of Aminorex in pre- and post- Yellow Rocket administration urines. The transition for Selected Ion Monitoring of Aminorex was 163.1 > 103.1. a shows the chromatogram of the pre-administration urine extract, b shows the chromatogram of a 4 h post–administration urine extract, c shows the chromatogram of a 8 h post–administration urine extract, d shows the chromatogram of a 12 h post–administration urine extract, e shows the chromatogram of a pre-administration urine extract demonstrating no carry-over, and f shows the chromatogram of the Aminorex reference standard. No evidence for the presence of Barbarin in these post B. vulgaris administration blood or urine samples has been identified to date