Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry
ISSN: 0975-413X
Abstract
Development of an extractive spectrophotometric method for the determination of Fe (III) using 4-methyl 2, 3-pentanedione dioxime
Author(s): D. J. Garole and V. J. GaroleA new analytical reagent 4-methyl 2, 3-pentanedione dioxime (H2MPDDO) is proposed for the extraction and spectrophotometric determination of Fe (III). The reagent H2MPDDO reacts with iron to give yellow colored complex which can be quantitatively extracted into dichloromethane at pH 2.0. The organic extract shows maximum absorption at 235 nm where absorption due to similarly prepared reagent blank is negligible. The beer’s law is followed in the concentration range 1-10μg/ml of Fe (III). The molar absorptivity and sandell’s sensitivity of Fe (III) - H2MPDDO complex are 3.03 x 103 l/mol/cm and 0.019 μg/ml/cm2 respectively. The proposed method is rapid, sensitive, reproducible, accurate and has been satisfactory applied for determination and separation of iron (III) in synthetic mixtures. It also provides a relative inexpensive alternative to more expensive instrumental method like Atomic absorption spectrophotometer.
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Citations : 15261
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