The database contains 100 gases listed in the first column. For each of these gases, the five largest mass peaks are listed (M1 through M5) and the relative height for each mass peak is listed (P1 through P5).
To be of any use, we need to be able to filter these on a mass basis to see only those of relevance to the data we are analyzing. At the bottom of the screen a multi-level filter is provided for this purpose. The diagram below shows the results of apply a first level filter of mass 28.
You can enter up to three filters. Clicking on the check box opens a new window in which to enter the masses you wish to use as a filter.
