Matrix | Calibration curve | X value when Y = 0 | Calculated drug concentration (ng/ml) | % Recovery |
---|---|---|---|---|
Solvent | Y = 15,056× + 11,361 | 0.755 ng/ml | ||
Plasma with 0 ng/ml cathinone | Y = 15,765 X + 116,422 | 7.38 ng/ml | ||
Plasma with 10 ng/ml cathinone | Y = 12,855 X + 271,850 | 21.15 ng/ml | 21.15–7.38 = 13.77 ng/ml | 13.77/10 = 137.7% |
Plasma with 33 ng/ml cathinone | Y = 14,171 X + 542,465 | 38.28 ng/ml | 38.28–7.38 = 30.90 ng/ml | 30.90/33 = 93.6% |
Plasma with 100 ng/ml cathinone | Y = 14,906 X + 1,653,920 | 110.96 ng/ml | 110.96–7.38 = 103.57 ng/ml | 103.57/100 = 103.6% |