| Compounds | 75 min | 95 min | 120 min |
| Hexanal (25 µL) Heptanal (25 µL) | + | − | − |
| Hexanal (15 µL) Heptanal (15 µL) | + | + | + |
| Hexanal (12.5 µL) Heptanal (12.5 µL) | + | + | + |
| Control | + | + | + |