Laserna, J. J. published the artcileKinetic determination of cobalt by complexation with pyridine-2-aldehyde 2-pyridylhydrazone and ligand oxidation with bromate, Category: pyridine-derivatives, the publication is Mikrochimica Acta (1985), 2(5-6), 457-67, database is CAplus.
Optimum conditions are outlined for the kinetic determination of Co. The rate of disappearance of pyridine-2-aldehyde 2-pyridylhydrazone (PAPH) in acidic medium is monitored spectrophotometrically at 372 nm. The method is based on the modification of the oxidation rate by complexation of PAPH with Co ions. The detection limit was 0.25 μg/mL. Beer’s law was obeyed for 0.40-1.50 μg/mL.
Mikrochimica Acta published new progress about 2215-33-0. 2215-33-0 belongs to pyridine-derivatives, auxiliary class Pyridine,Amine, name is 2-((2-(Pyridin-2-yl)hydrazono)methyl)pyridine, and the molecular formula is C11H10N4, Category: pyridine-derivatives.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem