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Sex, Lies, and Niagra

Alberto J. Sabucedo, PhD; Mauricio A. Gutierrez, MA; Keith C. Mueller, BS; Brandi L. Bellissima, BS; Ya-Li Hsu, MS; Stefan Rose, MD; Kenneth G. Furton, PhD
JAMA. 2004;291(5):560-562. doi:10.1001/jama.291.5.560-c.
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Figure 1. Chromatographic Separation of Sildenafil and Internal Standard by Liquid Chromatography Mass Spectrometry
Graphic Jump Location
Figure 2. Liquid Chromatography Mass Spectrometry Full-Scan Spectra of Reference Sildenafil Citrate and Niagra Actra-Rx
Graphic Jump Location
A, Spectra of sildenafil from Niagra Actra-Rx showing a matching spectrum with pseudomolecular ion [M + H]+ 475. B, Spectra of sildenafil citrate from Viagra tablet showing pseudomolecular ion [M + H]+ 475 and fragmentation pattern.



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