METAL-ION INTERFERENCES IN DETERMINATION OF SULFUR BY FLAME MOLECULAR-EMISSION SPECTROMETRY

Authors
HAUGE S MAROY K THORLACIUS A
Citation
S. Hauge et al., METAL-ION INTERFERENCES IN DETERMINATION OF SULFUR BY FLAME MOLECULAR-EMISSION SPECTROMETRY, Analytica chimica acta, 291(1-2), 1994, pp. 107-113
Citations number
12
Categorie Soggetti
Chemistry Analytical
Journal title
Analytica chimica acta → ACNP
ISSN journal
00032670
Volume
291
Issue
1-2
Year of publication
1994
Pages
107 - 113
Database
ISI
SICI code
0003-2670(1994)291:1-2<107:MIIDOS>2.0.ZU;2-B
Abstract
The well known interference from metal ions on disulphur emission in f lames was investigated. Sulphite was introduced by flow-injection thro ugh a cation-exchange column into a hydrogen-nitrogen diffusion flame. The effects of sodium, potassium, magnesium, calcium, nickel and copp er ions were investigated. Cooling of the flame, metal catalyzed oxida tion, solubility differences and the formation of metal disulphites ha ve been suggested to explain the variation of the observed interferenc es.