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  • 1990-1994  (2)
  • Inorganic Chemistry  (1)
  • multiplex dyes  (1)
  • 1
    ISSN: 1573-4994
    Keywords: Fluorescence ; multiplex dyes ; photochemistry ; time-resolved spectroscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract New dyes with characteristic fluorescence lifetimes have been developed for bioanalytical applications. Based upon the concept of “multiplex dyes,” we have designed rhodamine dyes with nearly identical absorption and emission spectral characteristics but different fluorescence lifetimes. Extending this principle to applications with laser diodes, new rhodamines with functional groups for covalent coupling of analytes have been developed. The new labels exhibit absortion and fluorescence beyond 600 nm and have a high quantum efficiency, even in aqueous buffer systems.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 145-148 
    ISSN: 0044-2313
    Keywords: Platinum ; lanthanides ; intermetallic compounds ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Formation of Intermetallic Compounds between Platinum and Lanthanides (Ln) in the Presence of Iodine (Ln=Gd, Sm).Reactions at 800°C in the system Pt/Gd/I produce the intermetallic compounds GdPt5, GdPt3 (AuCu3-type), and GdPt2 (MgCu2-type) depending on the ratio Gd:Pt and the iodine quantity. Using thermodynamic data the equilibrium conditions for the existence of the phases are evaluated and the experimental results interpreted. Using the same conditions in the case of the system Pt/Sm/I exclusively SmPt5 is produced. The results are explained on the basis of the expected difference in the heats of formation of GdI2 and SmI2.
    Notes: Reaktionen bei 800°C im System Pt/Gd/I führen in Abhängigkeit vom vorgelegten Verhältnis Pt/Gd und Iodanteil zu den Phasen GdPt5, GdPt3 (AuCu3-Typ) und GdPt2 (MgCu2-Typ). Mit Hilfe thermodynamischer Daten werden die Gleichgewichtsbedingungen für die Existenz der Phasen abgeschätzt und die Versuchsergebnisse interpretiert. Unter den gleichen Bedingungen wird im System Pt/Sm/I nur die Phase SmPt5 gebildet. Das voneinander abweichende Verhalten der beiden Systeme wird mit dem Unterschied in den erwarteten Bildungsenthalpien von GdI2 und SmI2 erklärt.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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