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Table 6 The number of ions overlapping between two independent sample sets among four experiments in Dataset 2

From: Ion annotation-assisted analysis of LC-MS based metabolomic experiment

 

Overlapping ion masses

Overlapping monoisotopic ion masses

Mode

M 0

M 1

M 2

Selected Ions

Positive

24 (10)

14 (7)

15 (8)

16 (8)

Negative

1 (1)

1 (1)

1 (1)

1 (1)

Total

24 (10)

15 (8)

16 (9)

17 (9)

  1. M1 and M2 use only monoisotopic ion masses, hence cannot be compared with M0 using individual ion masses. The selected ions are statistically significant in Exp.1 vs. Exp.3, Exp.1 vs. Exp.4, Exp.2 vs. Exp. 3, or Exp.2 vs. Exp.4 pair-wise comparisons in Dataset 2. The numbers in parentheses show the corresponding putative identifications.
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