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Reversed-phase high-performance liquid chromatography method with coulometric electrochemical and ultraviolet detection for the quantification of vitamins B 1 (thiamine), B 6 (pyridoxamine, pyridoxal and pyridoxine) and B 12 in animal and plant foods[J] . Journal of Chromatography A . 2007 (1)
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Determination of a Quaternary Mixture of Vitamins B6, B1, and B12 and Uridine 5’-Triphosphate by Derivative Spectrophotometry[J] . Basilio Morelli.Journal of Pharmaceutical Sciences . 1995 (1)