Table 1 Estimated release rates from cotton pad on days one to three†
From: Using synthetic semiochemicals to train canines to detect bark beetle–infested trees
Compound/stimuli‡ | Molecular weight (g/mol) | Vapour pressure (Pa, 25 °C)a | Regression, r2 | Regression, n | Estimated emission (ng/15 min) at end of day 1 | Estimated emission (ng/15 min) at end of day 2 | Estimated emission (ng/15 min) at end of day 3 | Estimated emission (molecules/s) at end of day 1 | Estimated emission (molecules/s) at end of day 2 | Estimated emission (molecules/s) at end of day 3 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
Methylbutenol, new pad | 86.1 | 3053 | 0.97 | 8 | 3.0E−01 | 9.7E−03 | 3.6E−04 | 1.6E+17 | 5.8E+15 | 2.1E+14 | |
Methylbutenol, old pad | 86.1 | 3053 | 0.81 | 11 | 1.3E−02 | 2.9E−05 | 6.6E−08 | 7.9E+15 | 1.8E+13 | 0.0 | |
cis-Verbenol | 152.2 | 4.4 | 0.85 | 6 | 1.1E−01 | 1.8E−03 | 3.1E−05 | 3.4E+16 | 6.0E+14 | 1.1E+13 | |
Verbenone | 150.2 | 10.3 | 0.35 | 5 | 1.8E+00 | 1.2E−01 | 1.3E−02 | 3.6E+17 | 4.0E+16 | 4.5E+15 | |
Ipsdienol | 152.2 | 1.3 | 0.98 | 3 | 1.6E−05 | 3.7E−11 | 0.0 | 5.6E+12 | 0.0 | 0.0 |