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  • 1
    Electronic Resource
    Electronic Resource
    A new method for measurement of coercive force in bubble garnets using microwave absorption (1987)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 61 (1987), S. 681-684 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: A new method has been developed for measurement of coercive force in bubble garnets using microwave absorption. The inflection point was observed in the derivative absorption signal when the measurement was carried out, changing the modulation field in a garnet film supporting magnetic bubbles. This inflection is related to the domain-wall absorption and the modulation field at the inflection point gives the coercive force in the garnet film. Using this method the coercive force can be determined even if the bubbles can hardly be observed. The coercive force of garnet films supporting submicron (0.3–1 μm diam) bubbles has been measured.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.338219
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    A new method for the determination of mobile phase volume in normal and reversed-phase liquid chromatography (1988)
    Springer
    Chromatographia 25 (1988), S. 288-294 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Mobile phase volume ; Ionic solutes ; Eluent electrolyte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary A new method for the determination of the mobile phase volume (V m) in liquid chromatography is presented based on the model regarding the retention of ionic solutes in the presence of eluent electrolytes. TheV m value can be determined by measuring the retention volumes of two ions that have the same charge in two eluent electrolyte systems. Compared with the methods using isotopically labelled eluent components or inorganic salts asV m markers, the method presented is proved to give more reasonableV m values for both normal and reversed-phase liquid chromatography. As well as in binary mixed solvent systems, theV m values in single solvent systems can be determined by this method.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02324702
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Model for partition chromatography of ionic solutes in the presence of eluent electrolytes (1986)
    Springer
    Chromatographia 22 (1986), S. 261-267 
    Details
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Partition ; Ionic solutes ; Counter-ion effect ; Co-ion effect
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary A general model that does not depend upon a specific mechanism is proposed for describing the retention of ionic solutes in partition chromatography in the presence of electrolytes. The effect of various types of 1∶1 and 1∶2 eluent electrolytes on the retention of inorganic ions on a cross-linked polyacrylamide is successfully explained in terms of the model. Capacity factors of ionic solutes can be estimated semiempirically on the basis of the theoretical equation presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02268770
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    Paper (German National Licenses)
    Fulltext
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