Table 3.
Results from EQA samples (Mycophenolate International Proficiency Testing [PT] Scheme) analyzed simultaneously by the enzymatic and LC-MS assays – M46A/B (October 2008) to M52A/B (April 2010).
| PT Samples | Nature | Enzymatic assay (mg/L) | Target (others) | LC–MS assay (mg/L) | Target (HPLC/MS) |
|---|---|---|---|---|---|
| M46A | Target | 14.0 | 14 | 13.0 | 12.2 |
| M46B | Pool | 2.3 | 2.1 | 1.9 | 1.9 |
| M47A | Target | 5.4 | 5.2 | 4.9 | 5.0 |
| M47B | Target | 5.3 | 5.1 | 4.7 | 5.0 |
| M48A | Target | 2.9 | 2.8 | 2.7 | 2.6 |
| M48B | Liver Pool | 3.0 | 2.8 | 3.0 | 2.8 |
| M49A | Target | 4.3 | 4.2 | No result | 4.3 |
| M49B | Target | 4.3 | 4.3 | No result | 4.3 |
| M50A | Target | 13.0 | 12.7 | 12.3 | 12.3 |
| M50B | Pool | 2.0 | 1.9 | 2.0 | 1.8 |
| M51A | Pool | 1.8 | 1.8 | 1.7 | 1.6 |
| M51B | Target | 4.0 | 4.0 | 4.0 | 4.0 |
| M52A | Pool | 2.1 | 1.8 | 1.7 | 1.7 |
| M52B | Target | 3.2 | 2.9 | 2.9 | 3.0 |