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. 2026 May 20;20:597331. doi: 10.2147/DDDT.S597331

Table 4.

Extraction Recovery and Matrix Effect of Two Analytes (n=3)

Compounds Nominal Concentration (ng/mL) Matrix Effects (mean ± SD) RSD% Recoveries (mean ± SD) RSD%
Atorvastatin 5 101.2 ± 3.1 1.9 92.6 ± 5.1 3.7
100 101.1 ± 1.2 96.9 ± 2.6
750 100.5 ± 1.8 95.9 ± 1.6
Almonertinib 5 89.9 ± 7.5 5.5 93.4 ± 3.8 4.1
100 91.1 ± 4.4 90.4 ± 4.6
750 87.8 ± 3.9 88.5 ± 1.1