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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Inorganica Chimica Acta 161 (1989), S. 81-85 
    ISSN: 0020-1693
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    The @International Journal Of Applied Radiation And Isotopes 30 (1979), S. 578 
    ISSN: 0020-708X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Energy, Environment Protection, Nuclear Power Engineering , Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Journal of Inorganic and Nuclear Chemistry 41 (1979), S. 1055-1056 
    ISSN: 0022-1902
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Polyhedron 9 (1990), S. 2895-2899 
    ISSN: 0277-5387
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Microchimica acta 70 (1978), S. 303-308 
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Der Einfluß des pH auf die Adsorption von Spuren Ruthenium, Mangan und Europium an Eisen (III) hydroxid wurde untersucht. Die Wirkung der Menge Adsorptionsmittel und die Dauer des Kontaktes zwischen diesem und dem Adsorbat wurden gleichfalls geprüft. Die Ergebnisse zeigen, daß Eisen(III)hydroxidniederschläge für die Anreicherung der erwähnten Spuren geeignet sind.
    Notes: Summary The effect of pH on the sorption of trace amounts of ruthenium, manganese and europium on iron(III) hydroxide was studied by radiotracer techniques. The effect of amount of sorbent and duration of the contact between the sorbate and the sorbent were also studied. The results indicate that an iron(III) hydroxide precipitate can be used for the preconcentration of traces of ruthenium, manganese and europium.
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Microchimica acta 71 (1979), S. 87-94 
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die Adsorption von Mikromengen Ga(III) an Niederschlägen von Fe(OH)3 und Fe2O3 wurde mit Hilfe von67Ga als radioaktivem Indikator untersucht. Die Abhängigkeit der Adsorption vom pH, von der Konzentration des Sorptionsmittels und von der Dauer des Kontakts zwischen Ga(III) und Fe(0H)3 wurde festgestellt. In Gegenwart von Na-Citrat wird die Sorption an Fe2O3 merklich geringer. Eisen (III)hydroxid- und Fe2O3-Niederschläge eignen sich als Kollektoren zur Anreicherung von Ga(III)-Spuren in einer Lösung.
    Notes: Summary The sorption of microamounts of gallium(III) on Fe(OH)3 and Fe2O3 precipitates was studied by using67Ga as radioactive indicator. The dependence of sorption of microamounts of gallium(III) on pH, sorbent concentration, and duration of the contact between gallium-(III) and Fe(OH)3 precipitate, was established. In the presence of sodium citrate the sorption of microamounts of gallium (III) on Fe2O3 markedly decreased. Iron(III) hydroxide and Fe2O3 precipitates are suitable collectors for the preconcentration of gallium (III) traces in solution.
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Microchimica acta 71 (1979), S. 95-104 
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Der Einfluß des pH auf die Adsorption von97Ru an Fe2O3,- Fe(OH)3-und Fe(OH)2-Niederschlägen wurde radiochemisch untersucht. Die Sorptionsmerkmale der erwähnten Adsorptionsmittel wurden festgestellt. Eisen-(II)hydroxid kann für die Anreicherung von97Ru oder allgemein von Rutheniumspuren ohne Rücksicht auf deren Oxydationsstufe verwendet werden. Der Einfluß der Berührungsdauer zwischen adsorbierendem Hydroxid und97Ru in der Lösung wurde gleichfalls untersucht.
    Notes: Summary The effect of pH on the sorption of ruthenium-97 on Fe2O3, Fe(OH)3 and Fe(OH)2 precipitates was studied by radiotracer technique. The sorption characteristics of Fe2O3, Fe(OH)3 and Fe(OH)2 sorbents have been established. Iron(II) hydroxide can be used for the preconcentration of ruthenium-97 or generally of trace amounts of ruthenium, without regard to the oxidation state of ruthenium. The effect of duration of the contact between the hydroxide sorbent and ruthenium-97 in solution was also studied.
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Microchimica acta 71 (1979), S. 105-112 
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die Abhängigkeit der Adsorption geringer Mengen Co (II) an Eisen (III)-hydroxid vom pH wurde untersucht und der Mechanismus der Adsorption erörtert. Eisen (III) oxidträger kann für die Anreicherung kleiner Mengen oder Spuren Co(II) verwendet werden. Der Einfluß von ÄDTA, Glycin, L(+)-Arginin und L(+)-Cystein auf die sorbierte Menge Co(II) wurde gleichfalls geprüft.
    Notes: Summary The sorption of small amounts of cobalt(II) on iron (III) oxide has been studied as a function of pH. The mechanism of sorption is discussed. Iron (III) oxide carrier can be used for the preconcentration of small or trace amounts of cobalt(II). The influence of EDTA, glycine,L(+)-arginine andL(+)-cysteine on the sorption yields of cobalt(II) has also been studied.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Journal of thermal analysis and calorimetry 59 (2000), S. 837-846 
    ISSN: 1572-8943
    Keywords: DSC ; γ-irradiation ; laser Raman ; microelectrophoresis ; XRD ; zeta-potential ; zirconium hydroxide ; ZrO2
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract Zirconium hydroxide particles produced by rapid precipitation at pH 10.4, 7 or 2 were subjected toγ-irradiation up to a final dose of 20 MGy. The effects of the γ-irradiation were examined by X-ray powder diffraction, laser Raman spectroscopy, differential scanning calorimetry and microelectrophoretic measurements. It was found that γ-irradiation had no influence on the behaviour of zirconium hydroxide during calcination and subsequent cooling. The results of microelectrophoretic measurements showed that γ-irradiation influences the surface properties of zirconium hydroxide as a function of the precipitation pH. Zirconium hydroxide precipitated at pH 2 proved to be the most susceptible to γ-irradiation, while the sameγ-irradiation had very little (if any) effect on the surface properties of zirconium hydroxide precipitated at pH 10.5. After γ-irradiation, the electrophoretic mobility of zirconium hydroxide precipitated at pH 2 was increased at both low and high pH, thereby indicating an increase in its adsorption capacity. The analogy observed between the pH-dependence of the effects of γ-irradiation on the electrokinetic behaviour of zirconium hydroxide and the influence of ball-milling on the thermal behaviour of zirconium hydroxide [8] suggested that the susceptibility of amorphous zirconium hydroxide increases with decrease of the precipitation pH.
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Journal of materials science 29 (1994), S. 1227-1232 
    ISSN: 1573-4803
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Structural properties of lead vanadate glasses containing La3+ or Fe3+ ions were investigated using X-ray diffraction, Fourier transform infrared spectroscopy and laser Raman spectroscopy. Crystalline Pb2V2O7 was formed for the molar composition 66.7PbO-33.3V2O5. Incorporation of greater quantities of La3+ into lead metavanadate glass caused the crystallization of Pb2V2O7. Fourier transform infrared and laser Raman spectra also suggested the presence of LaVO4. Incorporation of Fe3+ ions into lead metavanadate glass, up to 20 wt% Fe2O3, did not cause crystallization inside the glass matrix. Changes in the vibrational spectra are discussed.
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