Structure elucidation of phototransformation products of unapproved analogs of the erectile dysfunction drug sildenafil in artificial freshwater with UPLC-Q Exactive-MS

Application of a high resolution benchtop quadrupole-Orbitrap mass spectrometry for the rapid screening, confirmation and quantification of illegal adulterated phosphodiesterase-5 inhibitors in herbal medicines and dietary supplements

(2013) Feng Shi et al.   JOURNAL OF CHROMATOGRAPHY A

Structural elucidation of a new sildenafil analogue using high-resolution Orbitrap mass spectrometry

(2013) Chee-Leong Kee et al.   RAPID COMMUNICATIONS IN MASS SPECTROMETRY

Identification of phototransformation products of sildenafil (Viagra) and its N-demethylated human metabolite under simulated sunlight

(2012) Peter Eichhorn et al.   JOURNAL OF MASS SPECTROMETRY

Towards a decade of detecting new analogues of sildenafil, tadalafil and vardenafil in food supplements: A history, analytical aspects and health risks

(2012) B.J. Venhuis et al.   JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS

Isolation and identification of a new sildenafil analogue adulterated in energy drink: Propoxyphenyl sildenafil

(2012) Mehmet Alp et al.   JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS

Identification of a new sildenafil analogue in a health supplement

(2011) Xiaowei Ge et al.   JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS

Anabolic, doping, and lifestyle drugs, and selected metabolites in wastewater—detection, quantification, and behaviour monitored by high-resolution MS and MS n before and after sewage treatment

(2010) Horst Fr. Schröder et al.   ANALYTICAL AND BIOANALYTICAL CHEMISTRY

Pharmaceuticals and personal care products in effluent matrices: A survey of transformation and removal during wastewater treatment and implications for wastewater management

(2010) Rebekah L. Oulton et al.   JOURNAL OF ENVIRONMENTAL MONITORING

Safety and Quality Assessment of 175 Illegal Sexual Enhancement Products Seized in Red-Light Districts in Singapore

(2009) Min-Yong Low et al.   DRUG SAFETY

Characterization of imatinib metabolites in rat and human liver microsomes: differentiation of hydroxylation fromN-oxidation by liquid chromatography/atmospheric pressure chemical ionization mass spectrometry

(2009) Shuguang Ma et al.   RAPID COMMUNICATIONS IN MASS SPECTROMETRY

Phosphodiesterase type V inhibitors: Occurrence and fate in wastewater and sewage sludge

(2009) Antonio Nieto et al.   WATER RESEARCH

Structure elucidation of thioketone analogues of sildenafil detected as adulterants in herbal aphrodisiacs

(2008) John C. Reepmeyer et al.   JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS

Strategies for characterizing sildenafil, vardenafil, tadalafil and their analogues in herbal dietary supplements, and detecting counterfeit products containing these drugs

(2008) S SINGH et al.   TRAC-TRENDS IN ANALYTICAL CHEMISTRY