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Intra- and Inter-day accuracy and precision for the analysis of ZnPT and PT in shampoo solutions (n = 3)
| Shampoo | Concentration (ng/mL) | Intra-day (n = 3) | Inter-day (n = 3) | ||
|---|---|---|---|---|---|
|
|
|
||||
| Precision (CV, %) | Accuracy (%) | Precision (CV, %) | Accuracy (%) | ||
| ZnPT | 50 | 10.5 | 96.4 | 10.1 | 101.2 |
| 100 | 3.7 | 101.9 | 2.4 | 108.2 | |
| 500 | 2.5 | 104.7 | 2.0 | 95.9 | |
| 1600 | 2.3 | 103.4 | 1.8 | 106.3 | |
|
| |||||
| PT | 100 | 13.9 | 107.3 | 12.5 | 110.4 |
| 200 | 4.6 | 94.9 | 6.7 | 103.1 | |
| 500 | 0.8 | 102.4 | 2.3 | 97.3 | |
| 1600 | 3.4 | 107.6 | 1.4 | 105.5 | |
