| Analytes | 10 ng/mL | 50 ng/mL | 150 ng/mL | Ave. |
| Diclofenac | 71.3 | 61.1 | 65.9 | 66.1 |
| Fenoprofen | 78.6 | 76.1 | 76.2 | 77.0 |
| Flufenamic acid | 52.4 | 41.6 | 41.1 | 45.1 |
| Flunixin | 90.6 | 82.0 | 91.6 | 88.1 |
| Indomethacin | 72.0 | 73.4 | 75.0 | 73.5 |
| Indoprofen | 88.0 | 77.3 | 90.3 | 85.2 |
| Ketoprofen | 99.5 | 87.2 | 91.1 | 92.6 |
| Ketorolac | 90.1 | 92.9 | 92.0 | 91.7 |
| Meclofenamic acid | 52.1 | 47.2 | 46.7 | 48.7 |
| Mefenamic acid | 60.3 | 50.3 | 48.2 | 52.9 |
| 6-MNA | 95.2 | 92.9 | 95.9 | 94.7 |
| Naproxen | 96.5 | 85.2 | 91.0 | 90.9 |
| Oxyphenbutazone | 62.6 | 68.5 | 66.9 | 66.0 |
| Phenylbutazone | 57.9 | 65.6 | 61.5 | 61.6 |
| Tolmetin | 100.4 | 101.4 | 96.0 | 99.3 |
| Zomepirac | 95.7 | 97.8 | 92.0 | 95.1 |