How to change and fix the axes


How to change and fix the Y-axis

The table below describes how to change and fix the Y-axis:

Step

Action

1

Open a result file.

2

Choose Edit:Chromatogram Layout.

Result: The Chromatogram Layout dialog box is displayed.

3

Click the Y-Axis tab.

4

  • Select the appropriate curve from the list.

  • Click the Fixed option.

5

  • Type the desired minimum and maximum values.

  • Click the All with this unit button if you want other curves with the same Y-axis units as the current scaled curve to be similarly scaled.

    Note: The values will only be applied to existing curves. They will not be applied to new curves created after this function was last used.

  • Click the appropriate Pressure unit (MPa, psi, bar) option to change Y-axis units for pressure curves.

    Note: Default Pressure unit is From strategy, which is the unit defined in the original run strategy.

  • Click OK.


How to add a second Y-axis

The table below describes how to add a second Y-axis to the chromatogram.

Step

Action

1

Choose Edit:Chromatogram Layout.

Result: The Chromatogram Layout dialog box is displayed.

2

Click the Y-Axis tab.

3

  • Select the appropriate curve from the Right Axis droplist.

  • Click the OK button.


How to change and fix the X-axis

The table below describes how to change and fix the X-axis:

Step

Action

1

Open a result file.

2

Choose Edit:Chromatogram Layout.

Result: The Chromatogram Layout dialog box is displayed.

3

Click the X-Axis tab.

4

Select the appropriate option in the Base field:

  • Time of retention

  • Volume

  • Column Volume

Note: Some calculated curves, for example baselines, exist in only one base and might seem to disappear when the base is changed. Curves are collected in time and recalculated for display in volume. Thus, switching the base between Time and Volume can slightly alter the resolution.

5

  • Click the Fixed option in the Axis scale field to set the axis limits manually.

  • Type the desired minimum and maximum values.

  • If desired, de-select the Adjust retention zero to injection number checkbox.

    This checkbox is selected by default. The function sets the time/volume to zero at the injection mark, that is when the sample was injected. The time and volume before injection will become negative values.

  • Click OK.


2005-06-15