Table 5. Validation of other livestock and fishery products using Method 1

Matrix Target Linearity (r2) Fortification (μg/kg) Recovery (%) CV (%) LOD (μg/kg) LOQ (μg/kg)
Beef Flunixin 0.9952 10 93.1 6.9 8 27
20 82.4 7.7
40 88.4 2.3
5-Hydroxy flunixin 0.9928 10 83.3 20 10 33
20 93.0 16
40 100 18
Chicken Flunixin 0.9981 5 97.5 8.9 2 7
10 90.6 1.7
20 99.1 4.5
5-Hydroxy flunixin 0.9904 5 100 9.7 5 16
10 88.4 4.5
20 88.0 8.4
Egg Flunixin 0.9992 5 104 1.2 3 8
10 103 4.5
20 108 2.8
5-Hydroxy flunixin 0.9955 5 104 6.8 3 11
10 102 8.1
20 103 2.2
Flatfish Flunixin 0.9984 5 105 7.9 2 5
10 110 2.4
20 96.6 2.4
5-Hydroxy flunixin 0.9989 5 98.7 8.3 2 6
10 96.1 4.8
20 95.6 7.1
Shrimp Flunixin 0.9967 5 106 5.5 2 6
10 107 6.5
20 99.5 7.2
5-Hydroxy flunixin 0.9989 5 101 7.2 2 7
10 106 7.7
20 92.8 8.5
CV, coefficient of variation; LOD, limits of detection; LOQ, limits of quantification.