Table 1.
Limits of detection (LOD) and within-run coefficient of variation (CV) from 10 LOD experiments measured over a period of about one year.
| Experiment no. | Date of measurement | Cartridge lot | Instrument no. | LOD [pg/mL] | Within-run CV at |
||
|---|---|---|---|---|---|---|---|
| +30 pg/ml BNP equivalents (n=5) | +60 pg/ml BNP equivalents (n=5) | +90 pg/ml BNP equivalents (n=5) | |||||
| 1 | 28 Jan 2013 | A | 1 | 1.9 | 7.6% | 3.4% | 5.7% |
| 2 | 07 Feb 2013 | B | 1 | 1.9 | 3.9% | 2.7% | 4.4% |
| 3 | 22 Mar 2013 | C | 1 | 1.9 | 4.4% | 4.5% | 4.2% |
| 4 | 02 Mai 2013 | D | 2 | 2.5 | 2.6% | 11.5% | 3.4% |
| 5 | 17 Jun 2013 | E | 3 | 4 | 6.1% | 5.2% | 5.9% |
| 6 | 18 Jun 2013 | F | 3 | 4.3 | 5.0% | 2.3% | 6.5% |
| 7 | 03 Sep 2013 | G | 2 | 1.8 | 6.0% | 4.4% | 3.6% |
| 8 | 30 Oct 2013 | H | 4 | 1.6 | 4.0% | 5.8% | 4.8% |
| 9 | 13 Feb 2014 | I | 1 | 1.4 | 4.3% | 2.9% | 4.5% |
| 10 | 13 Feb 2014 | I | 5 | 1.8 | 3.7% | 3.1% | 1.9% |
| Mean value±standard deviation: | 2.3±1.0 | 4.8±1.4% | 4.6±2.7% | 4.5±1.4% | |||