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Occurrence of oxytetracycline residues in pooled raw milk samples using HPLC.
| Sl. no. | Blocks | Samples analyzed | Positive samples | Mean concentration±SE (ng/mL) | Range (ng/mL) | Samples above MRL |
|---|---|---|---|---|---|---|
| No. (%) | No. (%) | |||||
| 1. | Alathur | 9 | 3 (4) | 256.71±83.91 | 91.86-366.45 | 2 (2.67) |
| 2. | Chittoor | 8 | 1 (1.43) | 215.87 | - | 1 (1.43) |
| 3. | Palakkad | 5 | 1 (1.43) | 374.57 | - | 1 (1.43) |
| Total | 22 | 5 | 272.11±53.21 | 91.86-366.45 | 4 | |
MRL=Maximum residue limits, HPLC=High-performance liquid chromatography
