| | Separation materials or methods | Samples | Linear range | LOD | SAs |
| | Vortex-ultrasonic-assisted dispersive liquid-liquid microextraction | Fish samples | 0.02–10 mg kg−1 | 0.0053–0.009 mg kg−1 | Sulfadiazine, sulfamerazine, sulfamethazine, sulfachlorpyridazine, sulfamethoxazole, sulfisoxazole, sulfadimethoxine [16] | | Magnetic covalent organic frameworks (TpBD@Fe3O4) for microextraction | Milk and meat samples | | 3.39–5.77 μg L−1 | Sulfadiazine, sulfamerazine, sulfamethazine, and sulfamethoxazole [17] | | Solid phase microextraction with 3D graphene oxide/lanthanum nanoparticles @ Ni foam | Animal-based food products | 0.4–700.0, 0.3–900.0, and 0.25–500 μg L-1 | 0.14, 0.11, 0.08 μg L-1 | Sulfadiazine, sulfamethoxazole, sulfamethazine [10] | | Hydrophilic magnetic molecularly imprinted polymers for the dispersive solid-phase extraction | Chicken, cow milk, and goat milk | | 0.57–1.50 μg L-1 | Sulfadiazine, sulfathiazole, sulfamethoxydiazine, sulfamerazine, sulfamethoxypyridazine, sulfisoxazole, sulfachloropyridazine, sulfamethazine, sulfamethoxazole, sulfameter [18] | | Monolithic covalent organic framework-based solid phase extraction | Meat products | 0.5–200 μg kg-1 | 0.10–0.23 μg kg-1 | Sulfamerazine, sulfamethazine, Sulfathiazole, sulfamethoxazole, n-acetyl sulfamethoxazole [19] | | Triazine-based porous organic polymer as pipette tip solid-phase extraction adsorbent | Chicken, beef, egg, and milk | 1–300 μg L−1 | 0.10–0.28 μg L−1 | Sulfamethazine, sulfamonomethoxine, sulfisoxazole, sulfachloropyridazine, sulfadimethoxine [20] | | Electrospun polyacrylonitrile/covalent organic framework nanofibers for efficient enrichment | Spiked food samples | 0.5–50 μg L−1 | 0.10–0.18 μg L−1 | Sulfadiazine, sulfamethoxypyridazine, sulfisoxazole, sulfamonomethoxine, sulfamethoxazole, sulfamethazine, sulfachloropyridazine, [21] | | Nanostructured polyaniline-based pipette tip solid-phase extraction | Milk, honey | 0.05–50 μg L−1 | 9.2–13.5 μg L−1 | Sulfadiazine, sulfapyridine, and sulfamethoxazole [22] |
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