| Sample | Retention time (min) | Area | Cal conc. (mg/L) | Cal cont. (mg/g) |
| BRB-F | 5.987 | 2286906 | 42.375 | 4.11 |
| BRB-F-S | 5.973 | 1046065 | 19.081 | 1.85 |
| BRB-F-W | 5.972 | 119891 | | |
| BRB-F-P | 0.000 | 0 | 0.000 | 0.00 |