Fig. 2

3D chromatogram of (a) blank muscle sample; (b) blank muscle sample and 0.5 µg/band of the internal standard (IS) esomeprazole; (c) spiked muscle sample with 7 µg/band of florfenicol, 2.4 µg/band of meloxicam, and 0.5 µg/band of the IS esomeprazole, using glacial acetic acid, methanol, tri-ethyl amine, and ethyl acetate, (0.05: 1.00: 0.10: 9.00, by volume) as a developing system at 230 nm.