Table 3. Accuracy and imprecision of MTX at LLOQ

Samples	Before-processing LLOQ (μg/mL)	Post-processing LLOQ (μg/mL)	Accuracy (%)	Imprecision (CV %)
1	0.5	0.5156	103.11	3.63
2	0.5	0.4740	94.79
3	0.5	0.5184	103.68
4	0.5	0.4883	97.66
5	0.5	0.4859	97.18
6	0.5	0.5075	101.49