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Anion-exchange TLC of rhodium(III) and iridium(III,IV) on DEAE-cellulose or ECTEOLA-cellulose

Anionenaustausch-Dünnschicht-Chromatographie von Rhodium(III) und Iridium(III, IV) auf DEAE- oder ECTEOLA-Cellulose

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  • Chromatography of Metals
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Zusammenfassung

Zur dünnschicht-chromatographischen Trennung von Rh und Ir wurden DEAE- bzw. ECTEOLA-Cellulose mit 3 M bzw. 5 M NaClO3-haltiger Salzsäure als Lösungsmittel benutzt. Besonders in Verbindung mit einer Probevorbehandlung mit LiCl, HCl und H2O2 konnten mit diesen Systemen scharfe Trennungen von Rh(III), Ir(III) und Ir(IV) in einem weiten Konzentrationsbereich erzielt werden (Rh∶Ir=1∶500 bis 200∶1). Das Adsorptionsverhalten des Rh(III) in Abhängigkeit von der Vorbehandlung der Probelösung wird diskutiert.

Summary

The TLC behaviour and separation of Rh(III), Ir(III) and Ir(IV) has been investigated in the two systems composed of DEAE-cellulose or ECTEOLA-cellulose using 3 M or 5 M HCl containing NaClO3 as solvent. These systems, especially in combination with a sample treatment with LiCl, HCl and H2O2 solutions, allow the clean-cut separations of Rh(III) from Ir(III) as well as Ir(IV), coexisting in an extremely wide range of amounts and ratios (Rh∶Ir=1∶500 to 200∶1). A brief discussion on the characteristic adsorption behaviour of Rh(III), dependent on the previous history of the sample solutions, is also included.

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Hamada, T., Morita, T. & Ishida, K. Anion-exchange TLC of rhodium(III) and iridium(III,IV) on DEAE-cellulose or ECTEOLA-cellulose. Z. Anal. Chem. 316, 23–25 (1983). https://doi.org/10.1007/BF00487579

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  • DOI: https://doi.org/10.1007/BF00487579

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