Compound | % Recovery* EPA 1694 method (±RSD) | % Recovery** proposed Method (±RSD) (n = 3) | R2 proposed method | MDL proposed method (ng∙L−1) | MQL proposed method (ng∙L−1) | Repeatability preliminary (±RSD) (n = 3) | Reproducibility preliminary (±RSD) (n = 6) |
Chlortetracycline | 95 (23) | 57 (29) | 0.9941 | 3.05 | 10.16 | 11 | 29 |
Demeclocycline | 137 (2) | 66 (5) | 0.9973 | 1.22 | 4.08 | 4 | 5 |
Doxycycline | 120 (1) | 92 (8) | 0.9889 | 1.99 | 6.62 | 11 | 11 |
Metacycline | - | 84 (9) | 0.9928 | 1.51 | 5.03 | 6 | 10 |
Oxytetracycline | 149 (4) | 87 (4) | 0.9941 | 6.09 | 20.31 | 3 | 6 |
Tetracycline | 125 (4) | 78 (12) | 0.9930 | 7.17 | 23.90 | 5 | 13 |
Dapsone | - | 77 (12) | 0.9958 | 0.67 | 2.24 | 3 | 14 |
Sulfacetamide | - | 88 (5) | 0.9933 | 1.63 | 5.42 | 6 | 6 |
Sulfadimethoxine | 87 (3) | 92 (3) | 0.9944 | 0.57 | 1.90 | 4 | 5 |
Sulfamerazine | 91 (1) | 89 (8) | 0.9965 | 0.52 | 1.73 | 6 | 9 |
Sulfamethazine | 101 (6) | 88 (5) | 0.9948 | 0.71 | 2.36 | 2 | 6 |
Sulfamethoxazole | 88 (4) | 88 (8) | 0.9974 | 2.62 | 8.74 | 8 | 9 |
Sulphaquinoxaline | - | 90 (10) | 0.9927 | 3.14 | 10.45 | 2 | 13 |
Sulfathiazole | 77 (4) | 80 (3) | 0.9952 | 3.12 | 10.41 | 2 | 4 |