Table 1.
Retention time (RT), detection limit (DL), and quantification limit (QL) of maturation-related congeners and correlation coefficients (a, b, r2) of the calibration curves for cachaça aged for up to 60 months in new oak barrels.
| Compound | RT (min) | DL (mg/L) | QL (mg/L) | a | b | r2 |
|---|---|---|---|---|---|---|
| Vanillic acid | 24.02 | 0.05 | 0.16 | 1262.14 | 256.66 | 0.998 |
| Syringic acid | 26.61 | 0.03 | 0.10 | 2427.27 | -103.23 | 0.998 |
| Vanillin | 27.09 | 0.03 | 0.07 | 3111.94 | -86.94 | 0.999 |
| Syringaldehyde | 29.17 | 0.05 | 0.17 | 1078.18 | 340.49 | 0.996 |
| Coniferaldehyde | 34.81 | 0.02 | 0.07 | 4549.27 | 147.16 | 0.998 |
| Synapaldehyde | 35.87 | 0.03 | 0.09 | 3216.12 | 101.88 | 0.995 |