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  • 05.30.Jp  (1)
  • Abies grandis  (1)
  • 1
    Digitale Medien
    Digitale Medien
    Comparison of techniques for extracting volatile compounds from conifer needles (1990)
    Springer
    Journal of chemical ecology 16 (1990), S. 2713-2722 
    Details
    ISSN: 1573-1561
    Schlagwort(e): Monoterpenes ; Abies grandis ; Picea pungens ; steam distillation ; extraction ; secondary chemicals ; grand fir ; blue spruce ; coefficient of variation ; MANOVA
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Chemie und Pharmazie
    Notizen: Abstract Five extraction techniques were used to obtain quantitative measurements of monoterpenes from blue spruce and grand fir needles. Multivariate analysis of variance indicated that there was a significant difference in the amount of each monoterpene extracted by using different techniques. For both species, an 8-hr steam distillation of 10 g of material yielded the greatest amount of each monoterpene. This technique was also the most reproducible in that the coefficients of variation were lowest. A rapid steam distillation was relatively effective for grand fir, but not for blue spruce. A CO2 extraction was unreliable for both species.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00988080
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Remnants of Bose condensation and off-diagonal long range order in finite systems (1993)
    Springer
    Journal of low temperature physics 93 (1993), S. 907-919 
    Details
    ISSN: 1573-7357
    Schlagwort(e): 67.40.-w ; 67.40.Db ; 05.30.Jp
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Physik
    Notizen: Abstract We briefly review some general aspects of Bose condensation and off-diagonal long range order in infinite bulk systems and then discuss to what extent these features might be manifested in finite systems with free surfaces such as droplets of liquid 4 He at low temperatures. We focus on the structure of the one-body density matrix and the macroscopic wave function in the surface region, and note the possibility of a surface condensate.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00692038
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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    Artikel (Nationallizenzen)
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