PerkinElmer TORION T-9, Руководство пользователя

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186 . Torion T-9 User’s Guide

Show/Hide Background Graph - To the right of the summed graph icon is the
background ( Bkgd ) icon. By clicking on the icon the background chart will display below the
summed graph.
Using the cursor move the focus to the icon to the right of
Set Mode
to
Summed Select
.
This is the
Set Mode to Background Select
icon. By clicking this icon a blue box will be
placed around it indicating the background highlight is now ready for use. The summed
highlighter will no longer be active.
In the same TIC graph select a different range of peaks or scans. Notice the range is
highlighted in blue and the spectra of the range of scans are now displayed in the
background graph.
This is the spectral data for a section of background selected in the TIC. Choosing this
function totals the response of all of the ions in the region that have been selected. The
following image shows background (blue) and summed (yellow) areas which are selected in
the TIC graph. The background ( Bkgd ) graph shows the background noise of the instrument.