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  • 1
    Electronic Resource
    Electronic Resource
    Density-gradient sedimentation equilibrium of DNA and the effective density gradient of several salts (1971)
    New York : Wiley-Blackwell
    Biopolymers 10 (1971), S. 1901-1924 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The various treatments of sedimentation equilibrium are compared on a theoretical and an experimental basis. Particular attention is paid to the polyelectrolyte nature of the problem and the choice of a neutral component. The effective density gradients of several cesium salts for DNA are measured. Two previous theories for the effective density gradient are shown to be equivalent, and the experimental values are interpreted with respect to these theories. It is clear t hat sedimentation equilibrium in a density gradient may be used for the determination of unambiguous molecular weights.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.360101011
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  • 2
    Electronic Resource
    Electronic Resource
    The approach to equilibrium in a buoyant-density gradient (1972)
    New York : Wiley-Blackwell
    Biopolymers 11 (1972), S. 1765-1769 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The theory for the approach to equilibrium in a buoyant-density gradient is experimentally examined for the case of DNA in CsCl.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.1972.360110819
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  • 3
    Electronic Resource
    Electronic Resource
    Sedimentation equilibrium of DNA samples heterogeneous in density (1972)
    New York : Wiley-Blackwell
    Biopolymers 11 (1972), S. 1913-1918 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The problem of determining the molecular weight of DNA samples by sedimentation equilibrium in a buoyant-density gradient is considered for the case of DNA samples with density heterogeneity. By determining apparent molecular weights in two or more buoyant mediums, quantitative measure of the amount of density heterogeneity can be determined. This method may be employed to determine both the true molecular weight and the extent of base composition heterogeneity.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.1972.360110911
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  • 4
    Electronic Resource
    Electronic Resource
    Statistical length of DNA from light scattering (1971)
    New York : Wiley-Blackwell
    Biopolymers 10 (1971), S. 883-893 
    Details
    ISSN: 0006-3525
    Keywords: Chemistry ; Polymer and Materials Science
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: An analysis of hydrodynamic data of DNA by use of the wormlike coil model gave a statistical length of 1300 Å, in the absence of excluded volume corrections. The worm-like coil model and this hydrodynamically observed statistical length adequately describe the light scattering properties of DNA.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/bip.360100511
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