DraMS Thumbnail
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Updated on 2021-10-25:
Chromatogram Instructions
- Load a MOMA GCMS run
- Under "Data Viewers" menu, select "Chromatogram Viewer"
- From Chromatogram viewer, click "Thumbnail" checkbox (calculation takes time, so there will be a period of unresponsiveness)
- Create a ZIC or cZIC trace with UI at bottom of window
The 'Z' denotes the thumbnail data, which keeps only the detected peaks that fit within the data volume estimate. If a SIC or cSIC is duplicated with the '+' and the duplicate is changed to a ZIC or cZIC it will stay linked to the original SIC or cSIC when changing m/z. NOTE: the linking is only one way ZIC --> SIC, not SIC --> ZIC
Calculation Notes:
- Each summed histogram from the GCMS has a stripped down thumbnail counterpart, which is at most 74 detected peaks
- If a detected peak has a FWHM < 1.5 or > 5.5 bins, it is rejected
Mass Scan Viewer Instructions
- Under "Data Viewers" menu, select "Mass Scan Viewer"
- Select a mass scan in the list on the left side of window
- Click the "Math" popup menu, and select the "Fit All" checkbox
- This plots the fitted peaks over the raw data
- To list the details of all the peaks, click "Peaks" popup menu and
select the "Show List" checkbox
- The cutoff can be altered from the default value of 74 peaks with the "Peak Number Cutoff" field
- The red horizontal line indicates the y-axis value that corresponds to the cutoff
Release History
2021-09-27: Initial release of modified momadataview app for assessing thumbnail product
2021-10-15: [316f106] Feature refinement before wider release (includes dynamic peak cutoff line)
2021-10-25: [bc44147] Update mass scan viewer to reflect thumbnail data