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.
References
Shellard, E. J., Quantitative Paper and Thin-layer chromatography, Academic Press, London 1968.
Johri, K. N., Kaushik, N. K. andSingh, K., Mikrochim. Acta (Wien) (1969) 737.
Bame, H., Analyst,76, 220 (1951).
Schneider, W. A. andSandell, E. B., Mikrochim. Acta (1954), 3–4, 388.
Weisz, H., Micro analysis by Ring Oven Technique, Pergamon Press, 1961.
Ottendrofer, L. J., Anal. Chim. Acta.,33 (1965) 115.
Scherz, H., Bancher, E. andKaindal, K., Mikrochim. Ichnonal Acta,2 (1965) 255.
Johri, K. N. andSingh, K., Mikrochim. Acta (Wien) (1970). 1.
Fairbarn, J. W. andEl. Masry, S. J., Pharm. Pharmae.,19 (1967) 935.
Morrison, J. C. andChatten, J. G., J. Pharm. Pharme,17 (1965) 655.
Cozzi, D., Desiden, P., Lepri, L. undCiantelli, G., J. Chromatog.,35 (1968) 405.
Kaushik, N. K., Ph. D. Thesis, Delhi University, 1969.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
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
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02290588