Deuterated solvents are used to generate the signal to be detected and monitored by the lock system. The frequency and strength of this signal will depend on the solvent used. The main feature of the TopSpin lock routine is that it sets parameters such as the lock power, gain and frequency to a value appropriate to the solvent. With these default values set close to that which would be expected for that solvent, the BSMS can quickly locate and "lock“ onto the solvent signal by sweeping through a range of frequencies or magnetic field values. The solvent dependent parameters are taken from the " edlock“ table.

 

1. Select the Lock button in the Workflow button bar by clicking on it.

2. Select a solvent by clicking on it.

3. Click on the OK button inside the Solvent table window.