In industrial farming, several antimicrobial drugs, growth hormones, and other pharmaceuticals are commonly administered to the farm animals to treat infections and, prophylactically, to prevent disease or spur growth. Over recent decades, public awareness of pharmaceutical toxicity in foods of animal origin has grown tremendously . Consumers continuously express their concern about the risks to health because of the presence of these substances in food products . Metronidazole (MTZ) is a broad-spectrum drug of antibacterial and antiprotozoal activity. Residues of these substances may remain in food. Hence, they may pose a real menace to consumers . Therefore, the European Commission (EC) strictly regulates the use of veterinary drugs to feed farm animals . Maximum residue limits (MRLs) have been fixed for selected drugs, antibiotics, and hormones in animal products to protect consumers from potential health hazards in terms of toxicity and allergic reactions. All these circumstances make the control of veterinary drug residues a necessary step in ensuring consumer protection. Animal foods must be controlled for the drug presence . Therefore, fast, inexpensive, and reliable procedures for the determination of these antibiotics in meat products are in demand.