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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. |
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