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  • 1
    Electronic Resource
    Electronic Resource
    Interactions between charged rods near salty surfaces (2000)
    Springer
    The European physical journal 1 (2000), S. 345-349 
    Details
    ISSN: 1292-895X
    Keywords: PACS. 87.68.+z Biomaterials and biological interfaces - 87.16.Dg Membranes bilayers and vesicles - 68.10.-m Fluid surfaces and fluid-fluid interfaces
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract: Using both theoretical modeling and computer simulations we study a model system for DNA interactions in the vicinity of charged membranes. We focus on the polarization of the mobile charges in the membranes due to the nearby charged rods (DNA) and the resulting screening of their fields and inter-rod interactions. We find, both within a Debye-Hückel model and in Brownian dynamics simulations, that the confinement of the mobile charges to the surface leads to a qualitative reduction in their ability to screen the charged rods to the degree that the fields and resulting interactions are not finite-ranged as in systems including a bulk salt concentration, but rather decay algebraically and the screening effect is more like an effective increase in the multipole moment of the charged rod.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s101890050035
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  • 2
    Electronic Resource
    Electronic Resource
    Absolute and relative configuartion of L-660,631
    Amsterdam : Elsevier
    Tetrahedron Letters 28 (1987), S. 5129-5132 
    Details
    ISSN: 0040-4039
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(00)95609-0
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  • 3
    Electronic Resource
    Electronic Resource
    Synthesis of L-660,631 methyl ester and related compounds
    Amsterdam : Elsevier
    Tetrahedron Letters 29 (1988), S. 2279-2282 
    Details
    ISSN: 0040-4039
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0040-4039(00)86037-2
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  • 4
    Electronic Resource
    Electronic Resource
    Direct coupling of CO2 fluid extraction with capillary supercritical fluid chromatography (1988)
    Springer
    Chromatographia 26 (1988), S. 221-223 
    Details
    ISSN: 1612-1112
    Keywords: Extraction-chromatography interface ; Sub- and supercritical fluid extraction ; Capillary supercritical fluid chromatography ; Ethylene-propylene, caffeine ; Substituted hydrocarbons in soil
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary An interface described in the literature was modified to accommodate small sample quantities. The simple and inexpensive method can be used to obtain rapid qualitative sample information of complex matrices by extraction in sub- or supercritical conditions (SFE) with a concurrent separation by capillary supercritical fluid chromatography (CSFC). Compared to traditional solvent extraction methods the potential for analyte degradation and contamination is minimized resulting in reduced sample amount necessary for extraction and separation, and also in faster extractions. Complex matrices of a plastic material, a natural product and a soil spiked with a substituted hydrocarbon test mixture were analyzed to show the usefulness of the interface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02268155
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    Paper (German National Licenses)
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