Sushama. M. Lele, Poonam. P. Shevde and Rama. S. Lokhande 2013. Analytical method development and its application to extractive spectrophotometric determination of Co (II) using 1, 2-Propanedione, 1- phenyl-1-(2-hydroxybenzylideneazine)-2-oxime (PDPHBAO). IJPAR JOURNAL. 2, 3 (Aug. 2013), 98–102. DOI:https://doi.org/10.61096/ijpar.v2.iss3.2013.98-102.