Bruker NMR, User Manual

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Getting Started
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Figure 4.10: Monitoring several BSMS values during a temperature jump.
Regulation Mode
The following steps need to be performed:
• Insert sample.
• Tune and match –
atma .
• Lock-in – temperature value appears.
• Topshim.
• Selftune (maybe already done in example 1).
• Edte – enable NMR Thermometer.
• Perform an experiment with internal RF heating (e.g. TOCSY).
After setting up the system (lock, shim) and enabling the NMR Thermometer (
edte ) the
sample temperature is used for temperature regulation, which is visible on the status bar:
Figure 4.11: TopSpin status bar with NMR Thermometer enabled.
To test the performance of the NMR Thermometer start a TOCSY experiment and follow the
temperature values (sensor, NMR Thermometer) in the monitoring window of the VTU display
(
edte ). One can nicely see that the temperature inside the sample increases over a certain
4.3.2