Trace determination of zirconium with 3-hydroxy-2-(2 '-thienyl)-4H-chromen-4-one by solvent extraction

Authors
Nijhawan, M Chhakkar, AK Kakkar, LR
Citation
M. Nijhawan et al., Trace determination of zirconium with 3-hydroxy-2-(2 '-thienyl)-4H-chromen-4-one by solvent extraction, I J CHEM A, 40(10), 2001, pp. 1124-1127
Citations number
13
Categorie Soggetti
Chemistry
Journal title
INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
ISSN journal
03764710 → ACNP
Volume
40
Issue
10
Year of publication
2001
Pages
1124 - 1127
Database
ISI
SICI code
0376-4710(200110)40:10<1124:TDOZW3>2.0.ZU;2-W
Abstract
3-Hydroxy-2-(2'-thienyl)-4H-chromen-4-one forms a yellow coloured complex w ith zirconium at pH 8-8.2 which is quantitatively extracted into 1,2-dichlo roethane with absorption maximum at 425nm. The method obeys Beer's law in t he range 0-10 mug Zr(IV)/10ml and has a Sandell's sensitivity of 0.0012 mug Zr cm(-2).