UK National External Quality Assessment Service between laboratory comparisons34; lowest concentrations at which between laboratory coefficients of variation are ⩽10%
| Assay | Concentration (ng/ml) |
|---|---|
| Note that many manufacturers are changing and improving their assay methods. | |
| NA, not available. | |
| NB: CV data on the Abbott AxSYM, Vitros Eci, and Tosoh AIA systems are derived from <10 data points. | |
| TnI | |
| Abbott AxSYM | 4.4 |
| Bayer Immuno 1 | NA |
| Bayer Advia Centaur | 1 |
| Beckman Coulter AccuTnI | 0.65 |
| Dade Dimension | 1.75 |
| Dade Stratus | 1.25 |
| DPC Immulite | NA |
| DPC Immulite 2000 | 2.75 |
| Ortho CD Vitros ECi | 2.0 |
| Tosoh Bioscience AIA | 7.5 |
| TnT | |
| Roche Elecsys 1010 | 0.25 |
| Roche Elecsys 2010 | 0.33 |