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Linearity, limit of detection (LOD) and limit of quantification (LOQ) of compounds.
| Chemical Marker | Concentration Range (µg/mL) | Linear Equation | R-Squared Value | LOD (µg/mL) | LOQ (µg/mL) |
|---|---|---|---|---|---|
| Phyllanthin (1) | 6.25–100 | y = 65,900x + 138,000 | 0.999747 | 3.514099 | 10.64879 |
| Hypophyllanthin (2) | 6.25–100 | y = 73,400x + 484,000 | 0.984817 | 13.52513 | 40.98525 |
| Niranthin (3) | 6.25–100 | y = 41,900x + 201,000 | 0.996362 | 5.452889 | 16.52391 |
| Corilagin (4) | 6.25–100 | y = 16,100x + 983,000 | 0.982418 | 14.46484 | 43.83286 |
