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GEONs API fingerprint project: Selection of analytical techniques for clustering of sildenafil citrate API samples

identify future samples as well as to detect substandard and falsified API s. This paper reports the results of the latest fingerprint study, organised on sildenafil citrate API samples. Seventy-nine samples ...

Testing of complementarity of PDA and MS detectors using chromatographic fingerprinting of genuine and counterfeit samples containing sildenafil citrate.

Processing, Computer-Assisted Sildenafil Citrate Abstract: Counterfeit medicines are a global threat to public health. High amounts enter the European market, which is why characterization of these products is ...

Comparative dissolution study on counterfeit medicines of PDE-5 inhibitors

conducted on two sets of counterfeit medicines containing PDE-5 inhibitors (sildenafil citrate and tadalafil). The dissolution profiles were statistically compared to the ones of the genuine products using ...

Headspace-gas chromatographic fingerprints to discriminate and classify counterfeit medicines.

Keywords: Carbolines Counterfeit Drugs Drug Contamination Gas Chromatography-Mass Spectrometry Piperazines Principal Component Analysis Purines Reproducibility of Results Risk Factors Sildenafil Citrate ...

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

Studies Fraud Lactose Microspectrophotometry Multivariate Analysis Phosphodiesterase 5 Inhibitors Piperazines Principal Component Analysis Purines Reference Standards Reproducibility of Results Sildenafil ...

Impurity fingerprints for the identification of counterfeit medicines--a feasibility study.

Feasibility Studies Least-Squares Analysis Piperazines Principal Component Analysis Purines Sildenafil Citrate Spectrophotometry, Ultraviolet Sulfones Tablets Tadalafil Abstract: Most of the counterfeit ...

Comparison and combination of spectroscopic techniques for the detection of counterfeit medicines.

Sildenafil Citrate Spectroscopy, Fourier Transform Infrared Spectroscopy, Near-Infrared Spectrum Analysis, Raman Sulfones Tadalafil Abstract: During this study, Fourier transform infrared spectroscopy (FT- ...

Evaluation of the residual solvent content of counterfeit tablets and capsules.

Keywords: Capsules Carbolines Counterfeit Drugs Gas Chromatography-Mass Spectrometry Guidelines as Topic Phosphodiesterase 5 Inhibitors Piperazines Purines Sildenafil Citrate Solvents Sulfones Tablets ...

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