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Chromatographia

, Volume 15, Issue 5, pp 301–304 | Cite as

Paper chromatography of some sulfonated azo-dyes used as metallochromic reagents in liquid-liquid anion exchange systems

  • S. Przeszlakowski
  • H. Wydra
Originals

Summary

Chromatographic behaviour of 11 sulfonated azo-dyes used as metallochromic reagents in chloride systems was investigated by paper extraction chromatography and the moist paper technique. It was found that the affinity of reagents to the cellulose treated with liquid anion exchangers decrease in the following order: Titan Yellow, Stilbazo, Zincon, Eriochrome Black T>Magneson II >SPADNS and Arsenazo I∼Arsenazo III>Thoron. The results suggest that the retention of the reagents in extraction chromatography is caused not only by anion exchange process but also by adsorption phenomena. It was found that in acidic media only the sulfonic groups of the reagents form ion-pairs with alkylammmonium cations.

Key Words

Extraction paper chromatography Ion-exchange chromatography Extraction of sulfonated chelating reagents for metals 

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Copyright information

© Friedr. Vieweg & Sohn Verlagsgesellschaft mbH 1982

Authors and Affiliations

  • S. Przeszlakowski
    • 1
  • H. Wydra
    • 1
  1. 1.Department of Inorganic and Analytical ChemistryInstitute of Basic Chemical Sciences, Medical SchoolLublinPoland

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