Library

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
Filter
  • 1995-1999  (1)
  • 1975-1979  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of thermal analysis and calorimetry 9 (1976), S. 241-250 
    ISSN: 1572-8943
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Résumé On a étudié à l'aide d'un Derivatograph, sous diverses conditions, la réaction de mélanges binaires et ternaires des carbonates alcalins avec l'oxyde d'aluminium. L'identification des produits formés a été effectuée par diffraction des rayons X. Si les mélanges binaires et ternaires de carbonates contiennent du carbonate de lithium, il se forme toujours 1'α-métaaluminate de lithium, qui, à température plus élevée, se transforme en la formeγ. Si la carbonate de lithium est utilisé seul, on peut obtenir aussi l'ortho-dialuminate.
    Abstract: Zusammenfassung Die Reaktionen binärer und ternärer Alkalikarbonatmischungen mit Aluminiumoxid wurden mittels eines Derivatographen unter verschiedenen Bedingungen untersucht. Die Reaktionsprodukte wurden durch Röntgendiffraktion identifiziert. In Gegenwart Li2CO3-haltiger binärer und ternärer Karbonatmischungen war das Produkt stets α-Lithium-meta-aluminat, das bei höheren Temperaturen in dieγ-Form überging, während bei Einsatz von Li2CO3 auch Orthodialuminat erhalten werden konnte.
    Notes: Abstract Reactions of binary and ternary alkali metal carbonate mixtures with aluminium oxide were studied by means of a derivatograph under different conditions. Reaction products were identified by X-ray diffraction. In the presence of binary and ternary carbonate, mixtures containing Li2CO3 the product was alwaysα-lithium metaaluminate, transforming to theγ-form at higher temperatures, while using only Li2CO3 the orthodialuminate could be obtained too.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Chromatographia 48 (1998), S. 584-588 
    ISSN: 1612-1112
    Keywords: Column liquid chromatography ; Circular dichroism detection ; Multiscan detection ; Peak purity
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Summary A method has been developed to detect inhomogeneity of apparently homogeneous peaks of very similar analytes. The method utilizes the rapid scan feature of state-of-the-art spectrometers/detectors that allow the recording of up to 30 spectra in a single chromatographic peak. Sensitivity and selectivity are enhanced by chiroptical/optical detection. Thus, identification of “front” and “rear” components of the peak can be carried out. The method is exemplified by mixtures of codeine, hydrocodone and oxycodone as analytes.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...