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  • 1
    Electronic Resource
    Electronic Resource
    Ultrastructural localization of silver deposits in the receptacle cells of carnation flowers (1980)
    Springer
    Planta 148 (1980), S. 245-250 
    Details
    ISSN: 1432-2048
    Keywords: Analytical electron microscopy ; Dianthus ; Flower longevity ; Silver thiosulphate ; X-ray
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Carnations were treated with a silver thiosulphate complex to prevent wilting of the flowers. The ultrastructural localization of silver and sulphur in the receptacle tissue was investigated by electron microscopy. Electron-dense deposits were present in the receptacle tissue. Coarse-grained deposts (diam. 60–100 nm) were predominantly observed at the inner side of the cell wall, whereas fine-grained deposits (diam. 20–60 nm) were predominantly present inside the cell-wall region and in the intercellular spaces. These particles were analyzed for chemical elements by X-ray analytical electron microscopy (Philips EM 400 plus Edax energy dispersive analyzer, type 711). In both types of deposits, the presence of silver and sulphur was verified. Point analysis revealed that in both precipitates the S/Ag ratio was of the same order.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00380034
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Microchemical analysis on thin sections of soils with the laser microprobe mass analyser (LAMMA) (1981)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 308 (1981), S. 280-282 
    Details
    ISSN: 1618-2650
    Keywords: Mikroanalyse von Boden ; Massenspektrometrie, Lasermikrosonde ; Dünnschliffe
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary Experiments with a LAMMA-500 instrument were performed in order to test whether or not thin sections of soils with a thickness of more than 15 Μm could be analysed with this instrument. Although the usual thickness of the specimens for this instrument lies between 0.1–1 Μm, it was possible to analyse such thick sections by application of laser milling in which the laser beam was aimed at grazing incidence onto the edge of the section. In this way a path was cleared through the section by erosion and the material that sputtered away along this path could be analysed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00479640
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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