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Title: Spectrophotometric determination of iron in trace amount using 5-bromo-salicylaldehyde thiosemicarbazone
Authors: Ramanjaneyulu, G
Reddy, P Raveendra
Reddy, V Krishna
Reddy, T Sreenivasulu
Issue Date: Jul-2002
Publisher: NISCAIR-CSIR, India
Abstract: A simple, sensitive and specific spectrophotometric method has been developed for the determination of iron(II) in aqueous dimethylformamide (DMF). The metal ion reacts with 5- bromosalicylaldehyde thiosemicarbazone (5-BSAT) forming a green coloured complex in the pH range 5.0-6.0. The complex shows maximum absorption at 385 nm. Beer's law is obeyed in the range 0.28-5.60 μg/ml. The molar absorptivity and Sandell's sensitivity are found to be 1.72×104 l mol-1 cm-1 and 0.032 μg cm-2, respectively. The method has been employed successfully for the determination of Fe(II) in grape leaves, multivitamin capsules and human blood.
Page(s): 1436-1437
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.41A(07) [July 2002]

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