Aziz Ramadan, A., Bodakji, A., & Mahmoud, I. (2010). TLC-Densitometric Determination of Vitamins B1, B6 and B12 in Pure and Pharmaceutical Formulations Using Treated Aleppo Bentonite. Asian Journal of Chemistry, 22(4), 3283–3291. Retrieved from https://asianpubs.org/index.php/ajchem/article/view/11543