Table 1 : Precursor and product ions (with the multiplier value for each ion), and the reaction rate coefficient used for trace gas
analysis using Selected Ion Flow Tube-Mass Spectrometry (SIFT-MS).*


Compound Precursor Ion
[Name (m/z)]
Product Ions
[m/z (multiplier)]
React. Rate Coeff.
(cm3∙s-1)
Reference

Methanol H3O+(19, 37, 55, 73) 31 (1), 51 (1), 69 (1) 2.7 × 10-9 Spanĕl& Smith (1997) [12]
Ethanol NO+(30, 48) 45 (1) 1.2 × 10-9 Spanĕl& Smith (1997) [12]
Propanol NO+(30, 48) 59 (1) 2.3 × 10-9 Spanĕl& Smith (1997) [12]
Acetic Acid NO+(30, 48) 90 (1) 0.9 × 10-9 Spanĕl& Smith (1998a) [13]
PropanoicAcid H3O+(19, 37, 55, 73) 73 (-0.008), 75 (1), 93 (1), 111 (1) 2.7 × 10-9 Spanĕl& Smith (1998a) [13]
Hydrogen Sulphide H3O+(19, 37, 55, 73) 35 (1), 53 (1) 1.9 × 10-9 Spanĕl& Smith (2000) [14]
Methanthiol H3O+(19, 37, 55, 73) 49 (1), 67 (1) 2.5 × 10-9 Spanĕl& Smith (1998b) [15]
Ammonia O2+·(32) 17 (1), 35 (1) 2.4 × 10-9 Spanĕl& Smith (1998a) [13]
Cadaverine H3O+ (19. 37, 55, 73) 86 (1), 103 (1), 104 (1) 2.2 × 10-9 Ross et al. (2009) [16]
Putrescine H3O+ (19, 37, 55, 73) 89 (2.1), 107 (2.1) 2.4 × 10-9 Ross et al. (2009) [16]
Methanal H3O+(19, 32) 31 (1), 33 (-100.4), 83 (-100.9) 3.4 × 10-9 Spanĕl& Smith (2008) [17]
Ethanal H3O+ (19, 37, 55, 73) 45 (1.576), 81 (1.831) 3.7 × 10-9 Spanĕl& Smith (2008) [17]
Propanal NO+(30, 48) 55 (-0.006), 57 (1.0) 3.0 × 10-9 Spanĕlet al. (1997) [18]
Butanal NO+(30, 48) 71 (1) 3.5 × 10-9 Spanĕlet al. (1997) [18]
Pentanal NO+(30, 48) 85 (1) 3.2 × 10-9 Spanĕlet al. (1997) [18]
Hexanal NO+(30, 48) 99 (1) 2.5 × 10-9 Spanĕlet al. (1997) [18]
Heptanal NO+(30, 48) 113 (1) 3.1 × 10-9 Spanĕlet al. (1997) [18]
Octanal NO+(30, 48) 127 (1) 3.0 × 10-9 Spanĕlet al. (1997) [18]
Decanal NO+(30, 48) 155 (1) 3.3 × 10-9 Spanĕlet al. (1997) [18]

* Readers are referred to the referenced article for further details [12-18].

Mohamed et al.Breast Cancer Reports  2017 4:3DOI : 10.7243/2057-1631-4-3