Rapid and Simple Spectrophotometric Determination of Mn(II), Fe(III), Co(II), Ni(II) and Cu(II) Ions in Natural Samples Using 2-(2-Hydroxynaphth-1-ylazo)-pyridine

Simultaneous Determination of Iron (III) and Aluminum (III) in the Presence of Titanium (IV) in Portland Cement using Derivative Spectrophotometry

Three Simple and Economic Spectrophotometric Methods for Simultaneous Determination of Chitosan and Ascorbic Acid

Spectrophotometric Determination of Trace Amounts of Lead with Safranine O in Synthetic Sea Water and Zinc Sulphate

EXTRACTIVE SPECTROPHOTOMETRIC DETERMINATION OF IRON (II) USING AN ION ASSOCIATION COMPLEX FORMATION

Direct Spectrophotometric Determination of Lead (II) in Industrial Samples using 1, 3-Benzenediamine, N, N'-bis(2-furanylmethylene) in Presence of Surfactant

Determination of refractive indices of heavy metal ions solutions to evaluate their concentrations

SPECTROPHOTOMETRIC DETERMINATION OF TITANIUM (IV) IN STEEL, PAINT AND A COSMETIC CREAM USING TANNIC ACID IN MICELLAR MEDIUM

SPECTROPHOTOMETRIC DETERMINATION OF QUINIDINE SULFATE BY ION-PAIR FORMATION

PHYSICOCHEMICAL STUDIES OF NICKEL AND COPPER COMPLEXES WITH TAR AND SIMULTANEOUS DETERMINATION OF THE METAL IONS IN MIXTURES BY DERIVATIVE SPECTROPHOTOMETRY