Table 1.
Reproducibility of method.a
| specimen | NNAL-N-Gluc | (R)-NNAL-O-Gluc | (S)-NNAL-O-Gluc | Free NNAL |
|---|---|---|---|---|
| 1 | 0.61 ± 0.11 | 0.47 ± 0.08 | 0.57 ± 0.05 | 0.64 ± 0.02 |
| 2 | 0.50 ± 0.01 | 0.45 ± 0.09 | 0.30 ± 0.01 | 0.16 ± 0.03 |
| 3 | below DLb | 0.11 ± 0.02 | 0.15 ± 0.01 | 0.27 ± 0.04 |
| 4 | 0.43 ± 0.12 | 0.80 ± 0.07 | 1.29 ± 0.05 | 1.57 ± 0.25 |
| 5 | 0.48 ± 0.06 | 0.90 ± 0.11 | 0.81 ± 0.03 | 0.52 ± 0.07 |
a
All values are in nM concentrations, shown as mean ± SD of 3 LC-MS runs per sample analyzed on three consecutive days.
b
Values were below the detection limit (DL).