| Compound | Linearity range (μg/mL) | Correlation R | Regression R2 | Slope | CF |
| POS | 1.04 to 4.44 | 0.9998 | 0.9997 | 95060.6 | 1.00 |
| Hydroxytriazole | 1.09 to 4.54 | 0.9999 | 0.9999 | 134497.6 | 0.71 |
| Tosylated compound | 1.06 to 4.44 | 0.9999 | 0.9999 | 61495.9 | 1.55 |
| Deshydroxy posaconazole | 1.03 to 4.29 | 0.9999 | 0.9997 | 100339.3 | 0.95 |
| Benzylated posaconazole | 1.08 to 4.48 | 0.9990 | 0.9981 | 120586.9 | 0.79 |