title: 2-Amino-3-hydroxypyridine as a chromogenic reagent for the spectrophotometric determination of osmium.
abstract: 2-Amino-3-hydroxypyridine forms two coloured complexes, green and violet, with osmium, depending on the pH of the solutions. Based on this reaction, a selective and sensitive spectrophotometric method for the determination of osmium (3-13 ppm in the final solution) alone and in the presence of other metal ions has been developed.
authors.affiliation: Department of Chemistry, University of Delhi, Delhi-110007, India.
authors.forename: Y L
authors.initials: YL
authors.lastname: Mehta
authors.forename: B S
authors.initials: BS
authors.lastname: Garg
authors.forename: R P
authors.initials: RP
authors.lastname: Singh