Fig. 4
From: Penicillin-G and oxytetracycline residues in beef sold for human consumption in Maroua, Cameroon
Chromatograms of control samples of liver (a) and muscle (b)
Fig. 4 | International Journal of Food Contamination
From: Penicillin-G and oxytetracycline residues in beef sold for human consumption in Maroua, Cameroon
Chromatograms of control samples of liver (a) and muscle (b)