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Title: Extractive spectrophotometric determination of iron using 3-hydroxy-2-(2-thienyl) -4H chromen-4-one
Authors: Arya, Satya Prakash
Mahajan, Meenakshi
Jain, Preeti
Issue Date: May-2000
Publisher: NISCAIR-CSIR, India
Abstract: A highly sensitive method is described for the determination of iron (III). Iron(III) forms a brown coloured complex with 3-hydroxy-2-(2-thienyl)-4H-chromen-4-one (HTC) in acidic medium which is conveniently extracted into chloroform. The absorbance of the complex is measured at 415 nm. Beer's Law is obeyed up to 1.4 μg/ml with the molar absorptivity of 5.27×104 l/mol/cm. The method is quite simple, sensitive and selective and has been employed for analyzing some synthetic samples, chemicals and brazing solder.
Page(s): 552-553
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.39A(05) [May 2000]

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