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Title: Trace determination of zirconium with 3-hydroxy-2-(2ʹ-thienyl)-4H-chromen-4-one by solvent extraction
Authors: Nijhawan, Monica
Chhakkar, Anoop Kumar
Kakkar, Lajpat Rai
Issue Date: Oct-2001
Publisher: NISCAIR-CSIR, India
Abstract: 3-Hydroxy-2-(2ʹ-thienyl)-4H-chromen-4-one forms a yellow coloured complex with zirconium at pH 8-8.2 which is quantitatively extracted into 1,2-dichloroethane with absorption maximum at 425nm. The method obeys Beer's law in the range 0-10 μg Zr(IV)/10ml and has a Sandell 's sensitivity of 0.0012μg Zr cm-2.
Page(s): 1124-1127
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.40A(10) [October 2001]

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