|
|
| | López-de-Alba, Pedro L. et al. Simultaneous determination and classification of riboflavin, thiamine, nicotinamide and pyridoxine in pharmaceutical formulations, by UV-visible spectrophotometry and multivariate analysis. J. Braz. Chem. Soc., Aug 2006, vol.17, no.4, p.715-722. ISSN 0103-5053
|
|