title: Analytical properties of 3-hydroxypicolinaldehyde azine.
abstract: The synthesis and analytical properties of 3-hydroxypicolinaldehyde azine (3-OH-PAA), salicyladehyde azine and picolinaldehyde azine are described. 3-OH-PAA is isolated for the first time. The solubility, spectral characteristics, pK values and reactions with 36 cations were examined.
authors.affiliation: Department of Analytical Chemistry, Faculty of Sciences, University of Sevilla, Sevilla, Spain.
authors.forename: A G
authors.initials: AG
authors.lastname: De Torres
authors.forename: M
authors.initials: M
authors.lastname: Valcarcel
authors.forename: F
authors.initials: F
authors.lastname: Pino