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IJCT Vol.15(1) [January 2008] >

Title: Solvent extraction and spectrophotometric determination of copper(II) with 2-hydroxy-5-methyl acetophenoneisonicotinoylhydrazone (HMAINH)
Authors: Aswar, A S
Joshi, M D
Keywords: HMAINH
Copper determination
Issue Date: Jan-2008
Publisher: CSIR
Abstract: A new simple and sensitive extractive spectrophoto- metric method for the determination of copper (II) with reagent 2-hydroxy-5-methylacetophenoneisonicotinoylhydrazone (HMAINH) has been presented in this paper. The reagent HMAINH reacts with Cu (II) to give a yellow coloured complex, which can be quantitatively extracted into chloroform at 3.4 pH. The complex shows absorption maximum at 440 nm, where absorption due to reagent is negligible. The Beer’s law is obeyed in the concentration range of 0.5–4.0 ppm of Cu (II). The molar absorpitivity and Sandell’s sensitivity of extracted species are 9.340 x 10³ dm³ mol⁻¹cm⁻¹and 6.8 ηg cm⁻² respectively. The stoichiometry of the extracted species is found to be 1:1. The standard deviation is 0.0566. The effect of various diverse ions on the estimation of Cu (II) has been studied.
Page(s): 79-81
ISSN: 0971–457X
Source:IJCT Vol.15(1) [January 2008]

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