Kunihiro Kishida

The authors have developed a method of determining zeranol residues in bovine tissues without using toxic chemicals, organic solvents, and reagents in sample preparation and reversed-phase HPLC separation.

Whether in industrial nations or developing countries, an international harmonized method for drug residue monitoring in animal products is needed.

The authors describe a method for determining sulfamethazine residue in pork using 100% water in both sample preparation and HPLC separation.