Add Existing

Adds or updates existing peaks and existing groups from the calibration standard into the calibration. The behavior of the command depends on whether or not the calibration file already contains compounds:

  • When using calibration of a further level or recalibration, only data from already calibrated peaks and groups will be transferred. If you wish to add new compounds to the calibration file, you must use the Add All, Add Peak or Add Group commands.

When using a multi-signal standard, the command is governed by the On All Signals / On Active Signal option.

In the Calibration Summary Table, peaks will be searched for according to retention time and identification windows. Groups are identified by a letter.

Dependence on type and method of calibration:

  • When using Automatic Calibration, all compounds are brought into the first completely free level in the calibration file without regard to the current level.
  • When using automatic Recalibration, compounds are recalibrated at the current level. Further adjustments and supplements to the data can later be performed at any time.
  • When using Manual Calibration or Recalibration the (Re)Calibrate Peak or (Re)Calibrate Group dialog for the direct inspection and amendment of data will be displayed for each compound.
  • When using On All Signals or On Active Signal, existing peaks are either added on all signals or only on the active signal into the Calibration Summary Table.

Note:

If you hide the part of the Calibration window with the calibration standard, for example by reducing the Calibration window or enlarging the Compound Summary Table, the Add Existing command will not be active.