This document describes a procedure for the determination of ochratoxin A (OTA) in pork products specifically ham, pork based products (canned chopped pork) and pork liver using high performance liquid chromatography with fluorescence detection (HPLC-FLD). The method has been validated for ochratoxin A with naturally contaminated ham, pork based products (canned chopped pork) and pork liver containing 0,5 ¼g/kg to 11 ¼g/kg [4, 5, 6]. Laboratory experiences have shown that this method is also applicable to pâté and kidney [4].