Cobalt (II) was \determined spectrophotomerically with bromopyrogallol red as complexing reagent in aqueous phase in presence of a non-ionic surfactant Tween 80. Beer’s law is obeyed, over the concentration range 0.25-4.0 mg mL-1| with the detection limit of 1.0 ng nL-1. Validation of this method has been made by comparing the results with those obtained by flame Atomic Adsorption Spectroscopy, no significant difference was noted between the two methods as 95% confidence interval. The method is simple, accurate and economical and has been applied for the determination of cobalt (II) is pharmaceutical samples.
G A SHAR ,G A SOOMRO ,
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