The Labeling Status column in the Compounds table and the Status column in the Labeled Compounds per File table provide color-coded information about the quality of the analysis:

  • Red (): Indicates a contaminating mass in an unlabeled sample.
  • Blue (): Indicates an irregular exchange rate for a labeled sample.
  • Orange (): Indicates a low fit between the measured and fitted isotope patterns.
  • Gray (): Indicates the absence of isotopologues for the detected compound.

A contaminating mass in an unlabeled sample is more problematic than an irregular exchange rate for a labeled sample. See Investigate a contaminating mass in an unlabeled sample.