Summary
A new method for the simultaneous kinetic thermometric determination of V(V) and W(VI) traces based on the inhibitory effect of the latter ion on the catalytic action of the former on the oxidation of thiosulphate ion by hydrogen peroxide was developed. A universal mathematical model for the kinetics of the process which includes the catalytic and inhibitory effects of the species involved and relies on the standard-addition and Newton-Gauss methods facilitates the determination. The applicability ranges of the proposed method are 0.1–0.8 ppm V(V) and 1–14 ppm W(VI). The method is subject to few interferences, of which those from Fe(III) and Mo(VI), which also catalyse the analytical reaction, are the most serious.
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References
Mottola HA (1974) Anal Chim Acta 71:443
Nikolelis DP, Hadjiioannou TP (1979) Rev Anal Chem 4:81
Pérez-Bendito D, Silva M (1988) Kinetic methods in analytical chemistry. Ellis Horwood, Chichester, Chap 3
Ke PJ, Thibert RJ (1972) Mikrochim Acta 1:768
Fedorova TI, Yatsimirskii KB, Ermolaeva TG (1975) Zh Anal Khim 30:59
Grosse YI, Miller AD (1971) Metody Anal Redkometal Miner Rud Gorn Porod 2:52
Kurzawa V, Kurzawa Z, Swit Z (1976) Chem Anal (Warsaw) 21:797
Kurzawa Z, Matusiewicz H, Matusiewicz K (1976) Chem Anal (Warsaw) 21:797
Kurzawa Z, Kubaszewski E (1976) Chem Anal (Warsaw) 21:565
Igov RP, Miletic GZ (1981) Mikrochim Acta 1:355
Ternero M, Pino F, Pérez-Bendito D, Valcárcel M (1980) Microchem J 25:102
Moreno A, Silva M, Pérez-Bendito D (1983) Anal Lett 16:747
Gómez E, Estela JM, Cerdà V (1991) Anal Chim Acta 251:305
Cladera A, Caro A, Gómez E, Estela JM, Cerdà V (1992) Fresenius J Anal Chem 342:322
Forteza R, Cerdà V (1986) Anal Chem 58:453
Yatsimirskii KB (1966) Kinetic methods of analysis. Pergamon Press, Glasgow, pp 83–86
Snell FD (1978) Photometric and fluorimetric methods of analysis. Whiley, New York, p 1235
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Forteza, R., Canals, A., Caro, A. et al. Simultaneous kinetic thermometric determination of V(V) and W(VI) traces by the inhibitory effect of W(VI) on the V(V)-catalysed oxidation of thiosulphate ion by hydrogen peroxide. Fresenius J Anal Chem 345, 432–436 (1993). https://doi.org/10.1007/BF00325621
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DOI: https://doi.org/10.1007/BF00325621