Table 1.
Summary of results from the semi-empirical linear regression analysis. K0 values are for nitrogen drift gas.a
| Ion | K0
(cm2/V·s) |
α × 103
(V/K) |
β | γ (ms2) |
|---|---|---|---|---|
| m/z 322 | 1.39 | 0.87 | 0.536 | 0.07 |
| m/z 622 | 1.01 | 0.84 | 0.298 | 0.06 |
| m/z 922 | 0.83 | 0.93 | 0.181 | 0.07 |
| m/z 1222 | 0.72 | 0.96 | -- | 0.07 |
| m/z 1522 | 0.64 | 0.96 | -- | 0.15 |
| m/z 1822 | 0.58 | 0.89 | -- | 0.24 |
| m/z 2122 | 0.53 | 0.87 | -- | 0.30 |
| m/z 2422 | 0.49 | 0.97 | -- | 0.25 |
| m/z 2722 | 0.46 | 0.87 | -- | 0.48 |
| α = 0.91 × l03 | ||||
| β = 0.3145 (Ko)2 – 0.035 (K0) | ||||
| γ = 0.0434 (K0) (−2.811) | ||||
a
K0 is calculated in nitrogen from 4 replicate measurements; Variable gate width data for the β coefficient experiments was limited to m/z 322, 622, and 922.