Table 2 Accuracy and precision of quality control samples
From: Absolute quantification of endogenous angiotensin II levels in human plasma using ESI-LC-MS/MS
Intra-day (n = 3) | Inter-day (n = 9) | |||||
|---|---|---|---|---|---|---|
QC | Concentration (nM) | Accuracy (%)1 | Precision (%)2 | Accuracy (%)1 | Precision (%)2 | |
Angiotensin II | LLOQ | 6 | 106.4 | 16.0 | 112.5 | 14.5 |
LQC | 30 | 96.6 | 6.6 | 91.5 | 8.1 | |
MQC | 120 | 105.3 | 7.6 | 103.1 | 4.6 | |
HQC | 240 | 92.7 | 7.8 | 94.6 | 9.0 | |