Isolation and identification of thiohomosildenafil and thiosildenafil in health supplements

Analysis of undeclared synthetic phosphodiesterase-5 inhibitors in dietary supplements and herbal matrices by LC–ESI–MS and LC–UV

Samuel R. Gratz, Cheryl L. Flurer, Karen A. Wolnik · Journal of Pharmaceutical and Biomedical Analysis · 2004 · 176 citations

Pharmacy, Medicinal Chemistry, Pharmacology +12

Application of LC–ESI–MS–MS for detection of synthetic adulterants in herbal remedies

M Bogusz, Huda Hassan, Eid Al-Enazi et al. · Journal of Pharmaceutical and Biomedical Analysis · 2006 · 172 citations

Pharmacy, Pharmaceutical Analysis, Toxicology +12

Simultaneous determination of synthetic phosphodiesterase-5 inhibitors found in a dietary supplement and pre-mixed bulk powders for dietary supplements using high-performance liquid chromatography with diode array detection and liquid chromatography–electrospray ionization tandem mass spectrometry

Peng Zou, Sharon Sze‐Yin Oh, Peiling Hou et al. · Journal of Chromatography A · 2005 · 148 citations

Natural Sciences, Pharmaceutical Analysis, Pharmacology +16

Guidelines on Erectile Dysfunction

Eric Wespes, Edouard Amar, Dimitrios Hatzichristou et al. · European Urology · 2002 · 130 citations

Medicine, Urology, Andrology +11

Simultaneous determination of sildenafil, vardenafil and tadalafil as forbidden components in natural dietary supplements for male sexual potency by high-performance liquid chromatography–electrospray ionization mass spectrometry

Xiaolan Zhu, Song Xiao, Bo Chen et al. · Journal of Chromatography A · 2005 · 128 citations

Medicine, Pharmaceutical Analysis, Pharmacology +15