CHARACTERIZATION AND ELIMINATION OF THE INTERFERING EFFECTS ON FLAME ATOMIC-ABSORPTION SPECTROMETRIC DETERMINATION OF SELENIUM

Authors
ELDEFRAWY MM KABIL MA GHAZY SE
Citation
Mm. Eldefrawy et al., CHARACTERIZATION AND ELIMINATION OF THE INTERFERING EFFECTS ON FLAME ATOMIC-ABSORPTION SPECTROMETRIC DETERMINATION OF SELENIUM, Analusis, 22(6), 1994, pp. 350-352
Citations number
15
Categorie Soggetti
Chemistry Analytical
Journal title
Analusis → ACNP
ISSN journal
03654877
Volume
22
Issue
6
Year of publication
1994
Pages
350 - 352
Database
ISI
SICI code
0365-4877(1994)22:6<350:CAEOTI>2.0.ZU;2-S
Abstract
The interfering effects of some ions in the determination of selenium by flame atomic absorption spectrometry were investigated. The most ma rked effect was observed for copper. All the studied interferences wer e completely eliminated by adding n-butylamine plus thiourea to both s ample and standard solutions in acidic medium. The mechanism of the el imination is discussed. Moreover, the continuous inhibition-release ti tration method has been used in studying the stoichiometric ratios bet ween the analyte and the interferents.