Table 3. Recovery and Matrix Factor for DEM and DEX and Their IS (n = 6).
|
recovery |
matrix factor |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| QC level | ||||||||||
| LQC | MQC | HQC | LQC | HQC | ||||||
| compound | mean recovery (%) | CV (%) | mean recovery (%) | CV (%) | mean recovery (%) | CV (%) | IS normalized factor | CV (%) | IS normalized factor | CV (%) |
| DEM | 99.95 | 9.83 | 97.81 | 4.16 | 97.43 | 5.47 | 1.04 | 4.56 | 1.00 | 2.88 |
| DEM-d3 | 97.99 | 10.38 | 99.25 | 6.29 | 102.24 | 6.58 | ||||
| DEX | 95.57 | 5.48 | 103.51 | 6.03 | 100.42 | 3.39 | 0.99 | 3.34 | 1.03 | 3.96 |
| DEX-d3 | 97.42 | 4.02 | 96.79 | 2.14 | 101.51 | 3.84 | ||||