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Calibration curve, limit of detection (LOD) and limit of quantification (LOQ) for gallic acid and phloroglucinol at 760 nm using the optimal total phenolic content (TPC) conditions
| Standard | Calibration curve | r 2 | Range [ug/mL] | LOD [ug/mL] | LOQ [ug/mL] |
|---|---|---|---|---|---|
| Gallic acid | y = 0.00115x – 0.00101 | 0.999 | 1000–30 | 18.610 | 56.391 |
| Phloroglucinol | y = 0.00102x – 0.00177 | 0.998 | 1000–30 | 44.067 | 133.54 |
