A kinetic determination of ultramicro quantities of manganese(II), molybdenum(VI) and tungsten(VI) on the basis of their catalytic action on the oxidation of Azorubin S by hydrogen peroxide |
| |
| Authors: | M A Sekheta G A Milovanović T J Janjić |
| |
| Institution: | (1) Chemical Institute, Faculty of Sciences, University of Belgrade, Belgrade, Yugoslavia |
| |
| Abstract: | Summary A study has been made of the kinetics of catalytic oxidation of Azorubin S by hydrogen peroxide in the presence of Mn(II), Mo(VI) and W(VI) in order to find optimal conditions for the kinetic catalytic determination of these elements. Manganese(II), molybdenum(VI) and tungsten(VI) were determined in the concentration ranges 5.5–33.0×10–3, 1.3–8.1 and 5.9–44.1 g/ml, respectively. Standard deviations were less than 11%. The effect of some foreign ions on these determinations was also investigated.
Zusammenfassung Die Kinetik der katalytischen Oxydation von Azorubin S mit Wasserstoffperoxid in Anwesenheit von Mn(II), Mo(VI) und W(VI) wurde untersucht, um die optimalen Bedingungen für deren kinetisch-katalytische Bestimmung zu finden. Mn(II) wurde im Konzentrationsbereich von 5,5–33,0×10–3, Mo(VI) von 1,3–8,1 und W(VI) von 5,9–44,1g/ml mit Standardabweichungen <11% bestimmt. Außerdem wurden einige der möglichen Störungen untersucht.
This work was presented in part at the 20th Annual Meeting of the Serbian Chemical Society, Belgrade, January 17, 1977. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
