Technical data

Understanding Your Agilent ChemStation 179

Automation

Automatic Recalibration

Calibration is often done after a change in operating conditions, for example,

after changing a column or capillary. Automatic recalibration is usually done

at the start of a sequence of analyses or at regular intervals during a sequence

as part of a program to compensate for factors that affect the analytical

performance.

There are two ways to specify automatic sequence recalibration:

• explicit calibration sequences, or

• cyclic calibration sequences.

Recalibration using Preference Mode “Unique Folder Creation ON”

While performing a recalibration, the calibration table of the used method is

update according the defined method settings. Using the data storage mode

“Unique Folder Creation ON”, the recalibrated methods are available within

the sequence data container. The calibration table of the sequence method is

updated during that process. In addition the DA.M method of the individual

data files contains the updated calibration used for result creation.

Recalibration using Preference Mode “Unique Folder Creation OFF”

While performing a recalibration, the calibration table of the used method is

update according the defined method settings. Using the data storage mode

“Unique Folder Creation OFF”, the calibration table of the master method is

update during the recalibration.