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Calibration curves parameters
| Sample | Calibration equation | LR a) | r 2 b) |
|---|---|---|---|
| EBC | y = 31682x − 61.314 | 0.60–500 | 0.9998 |
| Plasma | y = 4573.5x + 19.035 | 0.40–500 | 0.9941 |
| Urine | y = 2229.8x + 70.446 | 0.7-10000 | 0.9963 |
(a) Linear range (n = 7) (µg.L− 1)
(b) Coefficient of determination obtained for matrix-matched calibration curve
