Table 1.
Intra-day, inter-day repeatability and column reproducibility expressed as average values and RSD% for retention times (tr) and peak areas (A).
| Analytes | Intra-Day Precision (n = 6) | Inter-Day Precision (3 Days, n = 15) |
Column-to-Column Reproducibility (3 Columns, n = 9) |
|||
|---|---|---|---|---|---|---|
| tr, min (RSD%) | Peak Area (A) (RSD%) | tr, min (RSD%) | Peak Area (A) (RSD%) | tr, min (RSD%) | Peak Area (A) (RSD%) | |
| CBG | 4.75 (1.05) | 49.41 (3.71) | 4.88 (1.94) | 45.78 (4.20) | 4.82 (3.46) | 47.94 (4.55) |
| CBD | 4.94 (1.24) | 47.44 (2.76) | 5.01 (2.85) | 48.44 (3.76) | 5.12 (3.78) | 48.23 (3.88) |
| Δ9THC | 8.08 (1.56) | 43.04 (2.98) | 8.25 (2.04) | 42.48 (3.95) | 8.28 (3.96) | 43.76 (4.22) |
| CBC | 10.27 (1.78) | 37.50 (3.38) | 10.35 (2.50) | 39.48 (4.36) | 10.31 (3.65) | 41.78 (5.01) |