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Determination of Ge(IV), Sn(II), Pb(II) and Zn(II), Cd(II), Hg(II) by ring colorimetry after separation by thin-layer chromatography

Bestimmung von Ge(IV), Sn(II), Pb(II) und Zn(II), Cd(II), Hg(II) durch Ring-Colorimetrie nach Trennung durch Dünnschicht-Chromatographie

Détermination de Ge(IV), Sn(II), Pb(II) et de Zn(II), Cd(II), Hg(II) par colorimétrie annulaire après séparation par chromatographie sur couche mince

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Summary

Clean and rapid analytical separation of microgram quantities of Ge(IV), Sn(II), Pb(II) and Zn(II), Cd(II), Hg(II) from their mixed solution has been made possible by ascending thin-layer chromatography using the solvent systems: (a)Isobutyl alcohol: Conc. HCl: Et-Me ketone and (b) Isobutyl alcohol: CH3COOH. For the evaluation of different metal ions, the resulting delineated spots as viewed in U.V. light were scooped out with the help of micro-vacuum cleaner and the collected material transferred to the paper set on the ring oven. Separate rings were obtained for individual metal ions and the computation of results having been made by ring colorimetry, using PTC and other chromogenic reagents.

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Authors and Affiliations

  1. Department of Chemistry, University of Delhi, Delhi-7, Indi

    K. N. Johri, H. C. Mehra & N. K. Kaushik

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  1. K. N. Johri
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  2. H. C. Mehra
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  3. N. K. Kaushik
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Johri, K.N., Mehra, H.C. & Kaushik, N.K. Determination of Ge(IV), Sn(II), Pb(II) and Zn(II), Cd(II), Hg(II) by ring colorimetry after separation by thin-layer chromatography. Chromatographia 3, 347–349 (1970). https://doi.org/10.1007/BF02290588

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  • DOI: https://doi.org/10.1007/BF02290588

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