Flame atomic absorption spectrometry determination of trace amount of cobalt (II) after preconcentration using modified analcime zeolite loaded with bis-(2-hydroxy-1-naphthaldimine)-N-diethylene-triamine.

A simple and sensitive flame atomic absorption spectrometry technique was developed for the determination of trace amounts of cobalt (Co) in various samples after adsorption on modified analcime using a recently synthesized tetradentate Schiff base ligand, bis-(2-hydroxy-1-naphthaldimine)-N-diethylene-triamine, by a column method in the pH range of 5 to 7… (More)