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  • 1
    ISSN: 1612-1112
    Keywords: Thin-layer chromatography ; Sulfoethyl (SE) cellulose ; Inorganic ions ; Sulfuric acid — organic solvent media
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The thin-layer chromatographic behavior of 49 inorganic ions has been systematically studied on layers of sulfoethyl (SE) cellulose, a strongly acidic cation-exchanger, with binary solvent mixtures consisting of sulfuric acid and an organic solvent such as methanol or acetone. The characteristic retention on the cellulose layer can be recognized for some ions forming sulfato complexes in the acid-organic solvent medium, and some aspects of the behavior are discussed. Chromatographic separations of analytical interest are also demonstrated on the SE-cellulose layer with acid-methanol and acid-acetone solutions used as mobile phases.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1612-1112
    Keywords: Thin-layer chromatography ; Sulfoethyl (SE) cellulose ; Inorganic ions ; Acetic acid and acetate media
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The thin-layer chromatographic behaviour of 51 inorganic ions has been studied on a strongly acidic cation exchanger, sulfoethyl cellulose, using acetic acid and acetic acid-ammonium acetate media. Feasibilities for effective separations of analytical interest are demonstrated on the cellulose layer (0.50mm thick) in both media.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1612-1112
    Keywords: Chromatography, thin-layer ; Sulphoethyl cellulose layers ; Sulphate media ; Inorganic ions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Thin-layer chromatographic (TLC) behaviour of 51 inorganic ions on a strongly acidic cation-exchanger, sulphoethyl (SE) cellulose, has been studied systematically in sulphuric acid and ammonium sulphate media (0.01–0.2 mol dm−3). Some aspects of the adsorption behaviour of the inorganic ions on the SE-cellulose are compared with those on other cation-exchangers in the same eluent systems. The possibilities for TLC separations of analytical interest are also proposed on SE-cellulose in sulphuric acid and acid ammonium sulphate media.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1612-1112
    Keywords: Thin-layer chromatography (TLC) ; Polyethyleneimine (PEI) cellulose ; Sulfuric acid — organic solvent ; Inorganic ions ; Separations
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Thin-layer chromatographic behavior of 49 inorganic ions has been systematically studied on polyethyleneimine (PEI) cellulose with solvent mixtures consisting of sulfuric acid and either methanol or acetone. The sorption of most ions on the cellulose increases with increasing methanol content in the solvent. The feature is noticeable for some ions which form sulfato complexes. The Rf values of Re(VII) slightly increase with increasing methanol content. Ba(II), Hg(II), Pb(II), Pd(II), Au(III), Bi(III), Ru(III), Sb(III), Pt(IV), Mo(VI) and W(VI) are strongly retained on the layer in methanol media. The behavior of most ions in the acetone system does not appreciably differ from that in the methanol system, but their Rf values are somewhat higher in acetone than in methanol. There are marked differences in the behavior og Hg(II), Au(III), Ru(III) and Re(VII) between the two systems. Feasibilities for the separation of many ions of analytical interest are also demonstrated in these systems.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Chromatographia 20 (1985), S. 364-366 
    ISSN: 1612-1112
    Keywords: Thin-layer chromatography ; Cellulose phosphate ; Inorganic ions ; Sulfuric acid-organic solvent media
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Thin-layer chromatographic behavior of 49 inorganic ions on cellulose phosphate (P-cellulose) has systematically been surveyed with binary solvent mixtures consisting of sulfuric acid and an organic solvent such as methanol or acetone. The Rf values of many bivalent and monovalent ions as well as Te(VI) decrease on the P-cellulose layer with an increasing concentration of the organic solvent. Polyvalent ions which form strong phosphato-complexes and precipitate insoluble sulfate are strongly retained on P-cellulose. Oxy-anions, Au(III) and Pt(IV) are not adsorbed on the cellulose to any great extent. Feasibilities of the separation of multicomponent mixtures are demonstrated on the P-cellulose layer.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1612-1112
    Keywords: Thin-layer chromatography ; Polyethyleneimine (PEI) cellulose ; Inorganic ions ; Sulfuric aicd-sulfate media
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary The thin-layer chromatographic behavior of 49 inorganic ions on polyethyleneimine (PEI) cellulose, a weakly basic anion-exchanger, has been systematically studied in sulfuric acid and ammonium sulfate media (both 0.01–1.0 moldm−3). The sorption on the cellulose decreases with increasing concentration of the acid or sulfate for most of the ions and to a lesser extent for Hg(II), Bi(III), Th(IV), Nb(V), and U(VI). The Rf values of Pd(II), Ru(III), Au(III), Pt(IV), and Ta(V) are extremely low in both systems. Ba(II), Pb(II), Sb(III), Mo(VI), and W(VI) are also strongly retained on the layer. Oxy-anions such as As(III) and Se(VI) are not adsorbed on the cellulose to any great extent, but Re(VII) distributes on the plate with a Rf value of about 0.5. The characteristic retention on PEI-cellulose layer of several polyvalent ions, which form anionic sulfato complexes, can be observed in ammonium sulfate media. Possibilities for separations of analytical interest are also demonstrated in both systems.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1612-1112
    Keywords: Thin-layer chromatography ; Polyethyleneimine (PEI) cellulose ; Inorganic ions ; Hydrochloric acid — thiocyanate media
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Thin-layer chromatographic behavior of 58 inorganic ions on polyethyleneimine (PEI) cellulose has been systematically surveyed in hydrochloric acid — ammonium thiocyanate media. In this media most of the ions distribute chromatographically on the layer. Ag(I), Hg(II), Pd(II), Au(III), Bi(III), Ru(III), Pt(IV), Nb(V), Ta(V), Mo(VI), and W(VI) are strongly retained, while alkali earths(II), Mg(II), As(III), Ti(IV), and Te(VI) are not absorbed to any great extent in this system. An interesting correlation was found between the Rf values on PEI-cellulose in the thiocyanate media and the paramagnetic moment of the rare earths(III). An oddeven fluctuation against the atomic number is also found for the heavy rare earths(III). Chromatographic separation of many inorganic ions of analytical interest is demonstrated in this system.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1612-1112
    Keywords: Thin-layer chromatography ; Diethyl-(2-hydroxy-propyl)aminoethyl (QAE)-cellulose ; Hydrochloric acid and chloride media ; Inorganic ions ; Re(VII)
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Thin-layer chromatographic behavior of 49 inorganic ions has been systematically studied on diethyl-(2-hydroxy-propyl)aminoethyl (QAE)-cellulose, a strongly basic anion exchanger, in aqueous hydrochloric acid and in acid-ammonium chloride media (0.01 to 1.0 mol dm−3). Aspects of the adsorption behavior of the ions on the cellulose are compared with those on other anion exchangers in the same eluent system. Feasibilities of separation of multicomponent mixtures are proposed on QAE-cellulose in both media. In particular, the selective separation of Re(VII) from many other ions can be accomplished on these systems.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1612-1112
    Keywords: Thin-layer chromatography ; Sulfoethyl cellulose ; Inorganic ions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Chromatographic behavior of 51 inorganic ions has been systematically studied on layers of sulfoethyl (SE) cellulose, a strongly acidic exchanger, in hydrochloric acid and in acid-ammonium thiocyanate media. The sorption of most of the ions on he SE-cellulose decreases with increasing concentration of the acid and the thiocyanate. The characteristic retention of some metal ions of SE-cellulose layer can be recognized over a low concentration of the acid or the salt. Feasibilities for separations of analytical interest are also presented in both systems.
    Type of Medium: Electronic Resource
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