Nominal conc. (nmol/L) | 100 | 1000 | 10000 | |
---|---|---|---|---|
On bench top at room temperature for 3 h | Conc. (nmol/L) | 93.6 ± 14.2 | 1139 ± 36 | 11196 ± 622 |
Stability (%) | 93.6 | 114 | 112 | |
In autosampler maintained at 6 °C for 24 h | Conc. (nmol/L) | 97.8 ± 15.6 | 1128 ± 63.6 | 12023 ± 1112 |
Stability (%) | 97.8 | 113 | 120 | |
After 3 freeze/thaw cycles of − 70 ↔ 23 °C | Conc. (nmol/L) | 98.8 ± 3.1 | 1095 ± 32 | 10965 ± 683 |
Stability (%) | 98.8 | 110 | 110 | |
Short term stability ( − 70 °C for 3 days) | Conc.(nmol/L) | 84.1 ± 7.4 | 1122 ± 7 | 11230 ± 563 |
Stability (%) | 84.1 | 112 | 112 | |
Long term stability ( − 70 °C for 30 days) | Conc.(nmol/L) | 92.0 ± 4.6 | 1095 ± 78 | 10626 ± 768 |
Stability (%) | 90.3 | 113 | 112 |