DIFFERENTIAL-PULSE POLAROGRAPHIC-DETERMINATION OF URANIUM IN BITUMINOUS COAL

Authors
NOGAMI EM DALMEIDAOLIVEIRA GM NOZAKI J
Citation
Em. Nogami et al., DIFFERENTIAL-PULSE POLAROGRAPHIC-DETERMINATION OF URANIUM IN BITUMINOUS COAL, International journal of environmental analytical chemistry (Print), 68(1), 1997, pp. 25-31
Citations number
16
Categorie Soggetti
Environmental Sciences","Chemistry Analytical
Journal title
International journal of environmental analytical chemistry (Print) → ACNP
ISSN journal
03067319
Volume
68
Issue
1
Year of publication
1997
Pages
25 - 31
Database
ISI
SICI code
0306-7319(1997)68:1<25:DPOUIB>2.0.ZU;2-0
Abstract
A liquid-liquid extraction and determination of uranyl ion in coal ash have been investigated. Synergistic effects were observed using a com bination of thenoyrtrifluoracetone, tributyl phosphate, and methyl iso butyl ketone. After the separation of interfering ions by precipitatio n with a hot ethanolic solution of thioacetamide, the determination of uranyl ion was performed by differential pulse polarography using a s olution of 1.0 M TRIS-HCl as supporting electrolyte. The average urani um content in bituminous coal was in agreement with the spectrophotome tric method using 4-(2-pyridylazo)resorcinol.