Export MRMs to TSV¶
Warning
To process multiple reaction monitoring (MRM) data, the MRM service of mzmine is required. This feature is included in the mzmine PRO subscription. Academic program and other users can reach out to inquire access options.
The Export MRMs to TSV module exports MRM transition measurements from an MRM feature list to a
tab-separated (.tsv) or comma-separated (.csv) table. Run
Set MRM quantifiers before export when you need to identify
the transition selected for quantification.
The export writes one row for every transition in each feature-list row and raw data file. Its
is_quantifier column marks the transition selected as the quantifier; area, height, and rt
refer to that individual transition within the feature's retention-time range. Thus, use the row
whose is_quantifier value is true when exporting quantifier areas; the table also retains the
other transitions for review.
An exemplary export is shown below:
Figure 1: Example export result with Skip missing features disabled.
Parameters¶
Feature lists¶
Select MRM feature lists to export. The list must contain MRM transition data; a conventional feature list without transitions cannot be exported by this module.
Export file¶
Choose the output file. Use a .tsv name for tab-separated output or .csv for comma-separated
output. When exporting several selected lists, include {} in the file name to substitute each
feature-list name and avoid overwriting a previous export.
Skip missing features¶
This option is intended to omit the placeholder row for a feature that was not detected in a particular raw data file. With the option disabled, the export retains one row containing the feature-list row ID and raw-file name but empty transition, area, height, and RT values. This makes absent measurements explicit when importing the table into downstream software.
In the documented application snapshot, the option does not yet suppress those placeholder rows; plan for them when importing the export.