The usefulness of 2D DOSY and 3D DOSY-CO
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Saleh Trefi; Véronique Gilard; Stéphane Balayssac; Myriam Malet-Martino; Robert
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Article
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2009
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John Wiley and Sons
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English
⚖ 604 KB
## Abstract Two‐dimensional diffusion ordered spectroscopy (DOSY) ^1^H NMR is proposed to analyze drugs that are complex mixtures in order to discriminate genuine from fake formulations. The method was applied to the analysis of 17 formulations of sildenafil, one being genuine Viagra and the others