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Table 1 Mutagenic Index (MI) for 10 aprotic ionic liquids as determined from the Ames test screening as reported by Docherty et al. [53]

From: Assessing the mutagenicity of protic ionic liquids using the mini Ames test

Ionic liquid MI (TA98) MI (TA98 + S9) MI (TA100) MI (TA100 + S9)
1-Butyl-3-methylimidazolium bromide 0.86 ± 0.18 0.88 ± 0.20 1.15 ± 0.17 0.88 ± 0.15
1-Hexyl-3-methylimidazolium bromide 0.99 ± 0.37 0.84 ± 0.10 0.92 ± 0.05 1.21 ± 0.23
1-Octyl-3-methylimidazolium bromide 1.55 ± 0.28 0.85 ± 0.24 1.09 ± 0.13 1.13 ± 0.10
1-Butyl-3-methyl pyridinium bromide 1.07 ± 0.10 0.93 ± 0.13 1.39 ± 0.30 1.34 ± 0.04
1-Hexyl-3-methyl pyridinium bromide 1.16 ± 0.34 1.09 ± 0.13 1.27 ± 0.18 1.08 ± 0.19
1-Octyl-3-methyl pyridinium bromide 1.27 ± 0.42 1.01 ± 0.11 1.34 ± 0.28 0.89 ± 0.01
Tetramethylammonium bromide 1.47 ± 0.26 0.90 ± 0.07 1.07 ± 0.13 1.16 ± 0.25
Tetraethylammonium bromide 1.33 ± 0.28 1.74 ± 0.29 1.04 ± 0.03 1.26 ± 0.07
Tetrabutylammonium bromide 1.07 ± 0.21 1.14 ± 0.35 1.19 ± 0.06 1.19 ± 0.02
Tetrahexylammonium bromide 1.21 ± 0.80 0.70 ± 0.18 1.09 ± 0.08 0.82 ± 0.09
  1. The results are from concentrations of 1 mg/plate, aside from Tetrahexylammonium bromide which was tested at 0.01 mg/plate as higher concentrations were toxic to the bacterial strains