Spectrophotometric determination of zinc in soils and sediments with 5,7-diiodo-8-hydroxyquinoline and rhodamine 6G

Authors
Nair, S Biju, VM Vijayalakshmy, B Rao, TP
Citation
S. Nair et al., Spectrophotometric determination of zinc in soils and sediments with 5,7-diiodo-8-hydroxyquinoline and rhodamine 6G, CHEM ANAL, 46(4), 2001, pp. 589-596
Citations number
16
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
CHEMIA ANALITYCZNA
ISSN journal
00092223 → ACNP
Volume
46
Issue
4
Year of publication
2001
Pages
589 - 596
Database
ISI
SICI code
0009-2223(2001)46:4<589:SDOZIS>2.0.ZU;2-S
Abstract
A method is described based on the selective extraction of zinc-5,7-diiodo- 8-hydroxyquinoline-rhodamine 6G ternary ion-association complex into toluen e. Zinc contents as low as 0.005-0.15 ppm in soil and sediment samples can be readily determined. The relative standard deviation for 10 replicate mea surements of Zn at a level of 0,025 ppm is 1.34%.