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Derivative spectrophotometric analysis of benzophenone (as an impurity) in phenytoin
Three simple and rapid spectrophotometric methods were developed for detection and trace determination of benzophenone (the main impurity) in phenytoin bulk powder and pharmaceutical formulations. The first method, zero-crossing first derivative spectrophotometry, depends on measuring the first deri...
| Autores principales: | , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
BioMed Central
2011
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| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3269999/ https://www.ncbi.nlm.nih.gov/pubmed/22152156 http://dx.doi.org/10.1186/1752-153X-5-85 |