Direct Spectrophotometric Determination of Nickel (II) With p-Methoxyphenylazo-bis-acetoxime

Abstract

A new reagent p-methoxyphenylazo-bis-acetoxime has been used for spectrophotometric determination of Ni (II). Nickel forms a 1:2 (Ni: R) ethanol soluble light yellow complex with the reagent. The working wavelength was taken at 370 nm (-3800) in the pH range 7.1-8.1. Beer’s law obeyed between 0.117 - 0.939 ppm and Sandell’s sensitivity is 15.44 ng/cm2.The values of log found from the two different methods were 8.65 and 8.67, respectively. Interference of 24 diverse ions has been examined.