Table 2.
Linearity, precision and accuracy for 12 compounds.
| Compound | Calibration curve range (ng/mL) | R2 | Precision (RSD %) | Accuracy (Error %) | ||
|---|---|---|---|---|---|---|
|
|
|
|||||
| Intraday | Interday | Intraday | Interday | |||
| Amlodipine | 15–7500 | 0.999 | 2.5–8.1 | 6.2–9.5 | 4.7–28.1 | 4.1–23.1 |
| Atenolol | 25–12500 | 0.999 | 4.3–5.9 | 7.8–9.1 | 6.0–13.2 | 1.2–17.8 |
| Atorvastatin | 1–500 | 0.991 | 2.2–6.3 | 3.7–13.1 | 8.7–18.3 | 5.1–15.3 |
| Digoxin | 10–5000 | 0.996 | 2.2–5.9 | 5.9–8.8 | 5.6–13.4 | 7.5–8.6 |
| Enalapril | 0.5–250 | 0.993 | 1.3–6.7 | 5.8–8.5 | 1.0–6.9 | 5.2–6.2 |
| Fenofibrate | 15–7500 | 0.992 | 1.1–9.7 | 10.2–13.0 | 8.5–15.7 | 5.7–12.1 |
| Furosemide | 100–50000 | 0.998 | 2.2–5.2 | 4.2–7.9 | 0.7–13.1 | 4.9–12.1 |
| Losartan | 1–500 | 0.996 | 2.0–5.0 | 4.5–9.2 | 7.3–17.1 | 4.6–12.4 |
| Nifedipine | 25–12500 | 0.998 | 2.7–4.7 | 6.8–7.7 | 1.2–9.5 | 6.3–7.6 |
| Propranolol | 1–500 | 0.996 | 5.4–9.0 | 6.7–9.2 | 1.8–4.3 | 2.5–6.1 |
| Simvastatin | 25–12500 | 0.992 | 3.9–6.9 | 4.7–6.9 | 2.5–9.5 | 5.2–7.4 |
| Valsartan | 5–2500 | 0.995 | 3.4–4.9 | 4.7–8.9 | 3.7–5.4 | 5.2–6.0 |