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  • Organic Chemistry  (3)
  • Atomabsorption / Atomemission / Massenspektrometrie / Isotopenverdünnung  (1)
  • 04. Solid Earth::04.08. Volcanology::04.08.03. Magmas
  • Brassicaceae
  • Larix
  • R/V Vereshchagin
  • calculation
  • pollen analytical standard techniques
  • 1975-1979  (2)
  • 1880-1889  (2)
Collection
Keywords
Publisher
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Vergleichende analytische Kaliumbestimmungen in Feldspäten bei kleinen Einwaagen (1978)
    Springer
    Fresenius' Zeitschrift für analytische Chemie 289 (1978), S. 41-43 
    Details
    ISSN: 1618-2650
    Keywords: Best. von Kalium in Feldspat ; Atomabsorption / Atomemission / Massenspektrometrie / Isotopenverdünnung ; Vergleich
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Es werden vergleichende Bestimmungen des Kaliumgehaltes in Feldspäten mit den Methoden Flammen-Atomemissionsspektrometrie mit und ohne Leitelement, Flammen-Atomabsorptionsspektrometrie und massenspektrometrische Isotopenverdünnungsanalyse bei Probeneinwaagen von etwa 50 mg durchgeführt. Die massenspektrometrische Meßtechnik des Kaliums bei thermischer Oberflächenionisation wird beschrieben. Der Kaliumgehalt zweier Kalifeldspäte wird bei Anwendung der verschiedenen Verfahren mit relativen Standardabweichungen von 0,3–1,8% bestimmt.
    Notes: Summary The potassium content in feldspars is determined by the methods of flame atomic emission spectrometry with and without internal standard, flame atomic absorption spectrometry and mass spectrometric isotope dilution analysis with sample weights of about 50 mg. The mass spectrometric measurements of potassium by the thermal ionization technique is described. The potassium content of two potassium feldspars is determined by the different methods with relative standard deviations of 0.3–1.8%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00449238
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  • 2
    Electronic Resource
    Electronic Resource
    Carotenoids of Rhizobia. I. New Carotenoids from Rhizobium lupini (1977)
    New York, NY : Wiley-Blackwell
    Helvetica Chimica Acta 60 (1977), S. 254-258 
    Details
    ISSN: 0018-019X
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The main pigments of Rhizobium lupini were 2,3,2′,3′-di-trans-tetrahydroxy-β,β-caroten-4-one and 2,3,2′,3′-di-trans-tetrahydroxy-β,β-carotene. As minor components 7,8,7′,8′-tetrahydro-ψ, ψ-carotene (ζ-carotene), β, β-carotene (β-carotene), and tentatively, a 2,3,2′(or 3′)-trihydroxy-β, β-caroten-4-one and a 2,3,2′(or 3′)-trihydroxy-β, β-carotene were identified.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/hlca.19770600131
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  • 3
    Electronic Resource
    Electronic Resource
    Zur Kenntniss einiger Ultramarinverbindungen (1880)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 203 (1880), S. 174-235 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.18802030111
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  • 4
    Electronic Resource
    Electronic Resource
    Zur Kenntniss einiger Ultramarinverbindungen (1880)
    Weinheim : Wiley-Blackwell
    Liebigs Annalen 201 (1880), S. 262-291 
    Details
    ISSN: 0075-4617
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jlac.18802010205
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