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Table 2 VOC signals that changed statistically significant in at least one bacterial species of the HAP panel

From: Headspace analyses using multi-capillary column-ion mobility spectrometry allow rapid pathogen differentiation in hospital-acquired pneumonia relevant bacteria

VOC No. Substance name (or position) 1/K0 [Vs/cm2] RT [s]
Positive ion mode
 1 Ethanol 0.509 3.7
 2 P_745_4 0.745 4.3
 3 P_810_5 0.81 4.7
 4 P_612_6 0.612 6.3
 5 P_678_7 0.678 6.7
 6 P_720_16 0.72 16
 7 P_508_17 0.508 16.7
 8 P_685_20 0.685 19.9
 9 P_603_25 0.603 25
 10 P_669_25 0.669 25.2
 11 P_726_25 0.726 25.2
 12 P_756_25 0.756 25.2
 13 2-Phenylacetaldehyd 0.616 30.4
 14 P_648_36 0.648 36
 15 P_580_42 0.58 41.8
 16 Octan-1-ol (monomer) 0.722 44.3
 17 Octan-1-ol (dimer) 0.929 44.3
 18 Nonanal 0.732 53.5
 19 P_748_54 0.748 53.5
 20 P_634_57 0.634 56.6
 21 P_755_106 0.755 106
 22 P_763_127 0.763 127
 23 Decan-1-ol 0.788 256.6
Negative ion mode
 24 P_528_6 0.528 6.3
 25 P_632_7 0.632 6.8
 26 P_631_10 0.631 10.3
 27 P_587_28 0.587 28.4
 28 P_613_29 0.613 29
 29 P_621_42 0.621 42.3
 30 Indole 0.609 239
  1. Unknown substances were named according to their position in the 2D-topographic plot as “P_x_y”, whereas “x” is representing the inverse ion mobility × 1000 and “y” is representing the MCC retention time (e.g. P_685_20 = 0.685 Vs/cm2; 20 s).
  2. 1/K0 Drift time in Ion mobility spectrometry [Vs/cm2], RT Retention time [s]