Adsorption preconcentration of cobalt and palladium and their separate determination in the adsorbent phase by chromaticity measurements and diffuse reflection spectroscopy

Authors
Ivanov, VM Kuznetsova, OV Grineva, OV
Citation
Vm. Ivanov et al., Adsorption preconcentration of cobalt and palladium and their separate determination in the adsorbent phase by chromaticity measurements and diffuse reflection spectroscopy, J ANALYT CH, 54(3), 1999, pp. 233-236
Citations number
11
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ANALYTICAL CHEMISTRY
ISSN journal
10619348 → ACNP
Volume
54
Issue
3
Year of publication
1999
Pages
233 - 236
Database
ISI
SICI code
1061-9348(199903)54:3<233:APOCAP>2.0.ZU;2-#
Abstract
The best conditions for the preconcentration of cobalt and palladium as com plexes of heterocyclic azo compounds immobilized on Silochrome C-120 were f ound, and spectral and colorimetric properties of these compounds were dete rmined. It was found that the greatest difference in colorimetric character istics is observed for cobalt(III) and palladium (II) 1-(2-pyridylazo)-2-na phtolates. A method for the separate determination of 0.03-0.3 mu g/mL of c obalt and 0.013-0.13 mu g/mL of palladium was developed based on the princi ple of two-wavelength colorimetry.