Table 3 Regression equations, linearity, LOD, and LOQ of the 7 marker compounds
From: Chondroprotective and anti-inflammatory effects of ChondroT, a new complex herbal medication
Compound | Linear range (μg/mL) | Regression equationa | Coefficient of determination | LODb (μg/mL) | LOQc (μg/mL) |
|---|---|---|---|---|---|
Chlorogenic acid | 1.56–100.00 | y = 30,420.94x – 42,881.66 | 0.9996 | 0.03 | 0.10 |
Berberine Cl | 0.78–50.00 | y = 81,886.13x + 16,338.31 | 0.9999 | 0.01 | 0.02 |
Nodakenin | 0.78–50.00 | y = 43,427.95x + 6,116.21 | 0.9999 | 0.02 | 0.06 |
Isoferulic acid | 0.78–50.00 | y = 44,822.70x – 7,991.61 | 1.0000 | 0.02 | 0.07 |
Oxypeucedanin hydrate | 1.56–100.00 | y = 26,221.17x + 5,076.06 | 1.0000 | 0.04 | 0.12 |
Decursin | 0.78–50.00 | y = 37,915.21x + 52,952.92 | 1.0000 | 0.04 | 0.12 |
Decursinol angelate | 0.78–50.00 | y = 28,967.64x + 29,015.53 | 1.0000 | 0.05 | 0.16 |