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    Review date: July 24, 2003
    PNNL-SA-27883

     

    High-Pressure On-Line Photolysis with NMR Detection


    CR Yonker and SL Wallen. Appl. Spectro. 50(6):781-784 (1996).

    Abstract: The investigation of the photoreversible fulgide Aberchrome-540 as a function of pressure and temperature with the use of nuclear magnetic resonance (NMR) detection is described. This technique demonstrates the novel combination of high-pressure NMR and laser photolysis with the use of fiber optics for the conversion of the fulgide on-line in the instrument. Investigation of the photolysis of Aberchrome-540 to 2.0 kbar and 120°C is reported. Extension of this technique should allow the investigation of photo initiated reaction kinetics and equilibria as a function of pressure and temperature with simultaneous structure characterization by NMR.


    For information about supercritical fluid capabilities at PNNL,
    please contact Clement Yonker, at (509) 372-4748, clem.yonker@pnl.gov.