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Accuracy and matrix effect for KA at different standard concentrations.
| QC concentration (μg/mL) | Matrix effect (%) | Intra-day accuracy (%) |
|---|---|---|
| 1.81 | 95.2 (1.2) | 99.2 (8.0) |
| 3.62 | 93.8 (2.4) | 99.7 (2.7) |
| 6.03 | 95.4 (3.2) | 97.0 (5.9) |
Standard deviation was given in the parentheses.
