“…Quantitative methods such as chromatographic techniques are generally used for both regulatory and monitoring purposes while qualitative methods such as enzyme immunoassays are only used for a rapid screening test for histamine only to be applied in the seafood companies’ hazard analysis critical control point (HACCP) systems for monitoring and prevention purposes. These methods have been compared by taking the factors of sensitivity, linearity, rapidity, repeatability, efficiency, and operational requirements into consideration, and advantages and disadvantages have been discussed by various authors over the years [ 2 , 15 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 ]. For regulatory purposes, reference methods are preferred by the government authorities.…”