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Results 1 to 20 of 28 articles found
2006

Screening suspected counterfeit Viagra® and imitations of Viagra® with near-infrared spectroscopy

2008

Detection of counterfeit Viagra® with Raman spectroscopy

2004

Electrochemical oxidation of sildenafil citrate (Viagra) on carbon electrodes

Analytica Chimica Acta (6.2 225), 501, 227-233.
2011

Detection of counterfeit Viagra® by Raman microspectroscopy imaging and multivariate analysis

2017

Verification of the authenticity of drugs by means of NMR relaxometry—Viagra ® as an example

2001

Utility of Certain σ and π-Acceptors for the Spectrophotometric Determination of Sildenafil Citrate (Viagra)

Mikrochimica Acta (5.4 95), 137, 63-69.
2004

Polymer membrane sensors for sildenafil citrate (Viagra) determination in pharmaceutical preparations

Analytica Chimica Acta (6.2 225), 515, 303-309.
2002

Stability indicating RP-LC determination of sildenafil citrate (Viagra) in pure form and in pharmaceutical samples

2001

Micellar electrokinetic capillary chromatography for the determination of Viagra and its metabolite (UK-103,320) in human serum

Electrophoresis (2.5 176), 22, 2004-2009.
2009

Colorimetric Determination of Sildenafil Citrate (Viagra) Through Ion-Associate Complex Formation

Journal of AOAC International (1.5 93), 92, 125-130.
2011

The identification of a nitrosated prodrug of the PDE-5 inhibitor aildenafil in a dietary supplement: A Viagra with a pop

2007

The usefulness of simple X-ray powder diffraction analysis for counterfeit control—The Viagra® example

2002

Extractive spectrophotometric methods for the assay of sildenafil citrate (Viagra) in pure form and in pharmaceutical formulations

Talanta (5.7 172), 57, 757-764.
2000

Synthesis and Properties of a-Thiagra. A Substituted 5-(2-Thienyl)pyrazolo[4,3-d]pyrimidin-7-one Bioisostere of Viagra®

Heterocycles (0.5 80), 53, 2643.
2011

Electroanalytical determination of sildenafil in Viagra tablets using screen-printed and conventional carbon paste electrodes

Journal of Electroanalytical Chemistry (4.1 168), 659, 121-127.
2001

Synthesis and Vasorelaxant Potency of Monagra. A Chiral 5-(2-Methyl-2,3-dihydro-7-benzofuryl)pyrazolopyrimidone Analog of Viagra®

Heterocycles (0.5 80), 55, 1789.
2016

Physical profiling and IR spectroscopy: simple and effective methods to discriminate between genuine and counterfeit samples of Viagra® and Cialis®

Drug Testing and Analysis (3.2 56), 8, 378-387.
2003

Separation and Determination of Synthetic Impurities of Sildenafil (Viagra) by Reversed-Phase High-Performance Liquid Chromatography

Analytical Sciences (1.2 73), 19, 1007-1011.
2000

Voltammetric behavior of sildenafil citrate (Viagra) using square wave and adsorptive stripping square wave techniques

Analytica Chimica Acta (6.2 225), 417, 143-148.
2003

HPLC-MS for the Determination of Sildenafil Citrate (Viagra(R)) in Biological Fluids. Application to the Salivary Excretion of Sildenafil after Oral Intake

Journal of Analytical Toxicology (3.3 94), 27, 88-94.
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