A polarographic study of the schiff bases of pyridoxal-5'-phosphate. Influence of the amine protonation equilibrium on the stabilityJ.M. Sevilla, M. Blazquez, F. Garcia-Blanco and M. DominguezJ. Chim. Phys., 86 (1989) 1143-1153DOI: https://doi.org/10.1051/jcp/19898601143