## [Processing] Menu

### Basic Data Manipulation

#### Background Subtract

##### Background Subtraction

You can remove unwanted background from a spectrum.

1. Open both the background spectrum and the spectrum from which you want to subtract that background spectrum.

2. Select [Processing] in the menu bar and then select [Basic Data Manipulation] > [Background Subtract] from the drop down menu.

   The Background Subtract dialog appears.

   - The Background Subtract dialog can also be displayed by clicking the icon in the toolbar.

3. Select the background spectrum.

4. Click [Subtract].