Abstract

Rehana Khanam^1*, Saba Khan¹ and Rekha Dashora²

DOI : http://dx.doi.org/10.13005/ojc/290230

A new reagent o-chlorophenylazo-bis-acetoxime has been used for spectrophotometric determination of Ni (II). Nickel forms a 1:2 (Ni: R) ethanol soluble greenish yellow complex with the reagent. The working wavelength was taken at 370 nm (ε-2451) in the pH range 7.3-7.9. Beer’s law obeyed between 0.117 - 0.939 ppm and Sandell’s sensitivity is 23.09 ng/cm2.The values of log β found from the two different methods were 8.95 and 8.76, respectively. Interference of 24 diverse ions has been examined.

(spectrophotometry; o-chlorophenylazo-bis-acetoxime; nickel (II) ; hydroxytriazene)

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