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Table 1 Percent data reduction after mass defect filtering alone or in combination with retention time and hmdb inclusion list

From: Post-acquisition filtering of salt cluster artefacts for LC-MS based human metabolomic studies

Ionization mode Filter Features remaining % Features removed
Positive None 2227 0.00
  md 1730 22.32
  md + RT 1853 16.79
  md + RT + inclusion 1872 15.94
Negative None 1742 0.00
  md 1107 36.45
  md + RT 1225 29.68
  md + RT + inclusion 1246 28.47
  1. All features detected in plasma in the malnutrition dataset are shown in both positive and negative ionization mode
  2. RT retention time, md mass defect