Table 4 Intraday and interday value precisions of melatonin from spiked maternal milk control sample at five levels
From: MALDI-MSI: a fast and reliable method for direct melatonin quantification in biological fluids
Concentration (pM) | Precision (%RSD) | ||
|---|---|---|---|
Intraday batch 1 | Intraday batch 2 | Interday | |
0.5 | 5.4 | 4.3 | 2.9 |
1.0 | 3.0 | 3.6 | 3.2 |
1.5 | 2.2 | 4.0 | 3.6 |
2.0 | 4.2 | 1.0 | 2.5 |
2.5 | 8.6 | 8.7 | 2.3 |