Table 2.
The optimal exogenous concentrations and improvement factors for complex background experiment using CHCA matrix averaged over triplicate independent experiments. On average, the optimal exogenous concentration required for predicted maximum LOD improvement factor is close to 2 LODorig.
| Peptide | Local maximum exogenous concentrations (C/LODorig) | Local maximum improvement factors (LODorig/LODC) |
|---|---|---|
| Angiotensin I | 2.57 ± 0.31 | 3.05 ± 0.81 |
| Angiotensin II | 0.71 ± 0.31 | 1.85 ± 0.85 |
| β-Amyloid (1-15) | 3.15 ± 2.59 | 1.59 ± 0.48 |
| All three peptides | 2.14 ± 0.74 | 2.16 ± 0.45 |