Neogen Corporation offers Veratox for Histamine. Veratox for Histamine (AOAC-RI No. 070703) is a direct competitive ELISA test for the detection of histamine in fresh, canned or pouched tuna, packed in either oil or water. The test uses a uniquely simple water extraction process, and returns results in the range of 2.5 to 50 parts per million. The Veratox for Histamine AOAC validation studies showed a 95.4% recovery rate of spiked samples, when compared to the AOAC official fluorometric method, and no cross-reactivity to all other commonly occurring biogenic amines.