Muthanna Journal of Pure Sciences – MJPS Vol.3 – No. 2 / October 2016 Shaimaa. H. Mallah Chemistry Department/ Faculty of Science/ AL-Muthanna University Abstract A new, simple, sensitive and rapid spectrophotometric method is proposed for the determination of trace … Continue reading Antipyryl Azo(2,7)-Naphthalindiol as Spectrophotometric Reagent for Micro-determination of Cobalt (II)