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Table 2 Select ion signals in the dynamic headspace of A.sarcoides culture measured by PTR-MS

From: Resolution of volatile fuel compound profiles from Ascocoryne sarcoides: a comparison by proton transfer reaction-mass spectrometry and solid phase microextraction gas chromatography-mass spectrometry

Mass (amu)a,b Signal Intensity (ppbv) at given age in daysc
  2 5 9 11 13 15 17
33 [methanol] 1.0 3.6 6.8 9.1 11.1 10.6 12.8
41 6.3 12.7 27.1 40.8 48.8 49.7 52.2
43 36.6 87.8 198 264 251 260 269
57 11.1 44.7 129 180 187 201 234
59 [C3H6O] 17.0 71.9 198 264 251 260 269
61 7.6 23.2 69.6 87.7 60.4 54.8 52.5
69 1.7 3.5 5.9 7.5 6.6 7.3 8.6
71 [1-butanol, 3-methyl-] 12.9 24.0 76.4 99.1 98.6 111 127
73 [C4H8O] 4.4 39.8 38.6 41.3 43.8 44.1 38.2
75 0.2 0.5 1.9 2.3 1.4 1.5 1.6
87 [C5H10O] 1.0 2.2 4.0 4.9 7.4 10.0 8.0
89 [ethyl acetate] 5.3 14.1 47.9 53.4 32.0 31.0 31.6
91 0.3 0.8 2.0 2.6 2.0 2.1 2.0
93 0.2 0.2 0.9 1.1 0.6 0.8 0.9
105 0.2 0.5 1.8 2.4 2.1 2.2 2.6
107 [benzaldehyde] 0.2 6.3 7.5 6.9 3.5 3.4 3.3
111 [1-octen-3-ol] 0.1 0.5 2.5 3.4 2.6 3.8 4.4
115 0.0 0.5 1.8 1.8 0.9 0.5 0.7
117 0.2 0.4 1.5 2.1 2.0 3.0 4.2
129 0.1 0.4 0.9 1.3 1.2 1.2 1.5
143 [nonanal] 0.1 0.6 0.6 0.7 0.2 0.4 0.5
SUM 106 338 847 1086 1013 1063 1153
  1. a Acetaldehyde (45), ethanol (47) and minor ion signals are excluded.
  2. b Tentative assignments to the ion are given in brackets.
  3. c Signal intensity denoted as 4 hour averages associated with the data in Table 3.