p-Methylisonitrosoacetophenonehydrazone as an Extractive Agent for the Spectrophotometric Determination of Nickel(II)

Abstract

A simple and rapid extractive spectrophotometric method for the

determination of Ni(II) is described. The complex formed between

Ni(II) and p-methylisonitrosoacetophenonehydrazone is extracted

into chloroform from aqueous solution at pH 7.5. The extracted

species has an absorption maxima at 480 nm and obeys Beer's law

over a range of 0.2-20 μg mL^–1 of Ni(II); the molar absorptivity

being 4.87 x 10³ L mole^–1 cm^–1. Interference from the foreign ions

has also been studied.