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|Title:||Liquid-liquid extraction and spectrophotometric determination of nickel(II) ,with pyridine-2-acetaldehyde salicyloyl hydrazone|
|Authors:||Sinha, S H|
Sawant, A D
|Abstract:||A new spectrophotometric method for the determination of nickel(II) at the trace level has been developed. Pyridine-2-acetaldehyde salicyloylhydrazone (PASH) reacts with nickel(lI) forming a yellow coloured complex in the pH range 4-7 (λmax, 395 nm), which is extractable into chloroform. The molar absorptivity and Sandell sensitivity are 8513.3 dm3 mol-1cm-1 and 6.8 ng/cm2 Beer's law is obeyed in the concentration range 0.5-5 ppm. The validity of the method has been checked by estimating nickel in a variety of samples.|
|Appears in Collections:||IJC-A Vol.30A(07) [July 1991]|
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