Home News Instrumentation       sunucd300       sunucd500       cscb400       sfi500       cscb600 File Storage Experiments Forms Safety Funding Contact Links		sfi500             The sfi500 spectrometer was funded by the SFI through their equipment supplement grant scheme to researchers in Chemistry.  Location :  NMR Laboratory, CSCB Building. Spectrometer: Varian 500MHz System , multinuclear with gradients.           Probe : 500MHz 1H-19F {15N-31P} 5mm PFG Indirect Detection probe designed for inverse detection experiments. These experiments show correlations between heteronuclei and protons by detecting high sensitivity protons. The probe has optimal proton sensitivity (S/N 850:1) and capability for irradiation at frequencies within the range of 15N to 31P with an actively shielded single-axis Z-gradient. Deuterium decoupling can also be carried out. Variable Temperature Range: -20°C to +80°C Note:  Both sfi500 and cscb600 have FTS preconditioning units enabling experiments to be run as low as -30°C without the use of liquid nitrogen. The maximum operating temperature at present is 30°C. A dedicated supply of N2 gas would be needed for temperatures higher than 30°C; such experiments (and experiments at temperatures lower than -30°C) can be performed on the cscb400 and sunucd500 spectrometers in the meantime, due to the provision of  pure nitrogen gas (necessary for probe) from a BOC liquid nitrogen tower and a liquid nitrogen dewar for low temp work. At present, we are costing  similar provisions for the CSCB Building.