## [Tools] Menu

### Identification

#### Identification for One Sample

You can search using a search engine to identify the substances of one sample.

1. Open the sample.

2. Select [Tools] in the menu bar and then select [Identification] from the drop down menu.

   The Identify dialog appears.

3. Edit the settings for [Title], [Comment] and [Search Type], and click [Parameters].

   - The items to set will be different depending on the selection of [Search Type].

4. Select the spectra to search.

   - Click [All] to select or deselect all the spectra in the list at once.

   - The spectra listed in the dialog depend on the selection in [Search Type]. Only MS spectra will be listed when "Mascot (PMF)" is selected. Only MS2 spectra will be listed when "Mascot (MIS)" is selected.

5. Click [Identify].

   The search result dialog is displayed.

#### Comparative Identification

You can search using Mascot Search Engine to identify the substances of a matrix.

1. Select [Processing] in the menu bar and then select [Quantitation] > [Show Peak Matrix] from the drop down menu.

   The Quantitation dialog appears.

2. Select the matrix to search from the drop down list and click [Close].

3. Select [Tools] in the menu bar and then select [Comparative Identification] from the drop down menu.

   The Comparative Identification dialog appears.

4. Edit the settings for [Title], [Comment] and [Search Type], and click [Parameters].

   - The items to set will be different depending on the selection of [Search Type].

5. Enter the parameters and click [OK].

6. Select the peaks to search.

   - Click [All] to select or deselect all the spectra in the list at once.

7. Click [Identify].

   The search results are displayed by the default internet browser.