Imidacloprid is one of the most commonly used insecticides to control pests, thereby improving the quality and yield of vegetables. Imidacloprid abuse contaminates the environment and sensitivities have been determined. 7 for the Meddens and Denka Seiken tests. 9 for the Behring test. The specificities of the tests have been determined. 6 for Meddens, 98.2 for Denka Seiken. 7 for Behring. The World Health Organization (WHO) estimates that there have been cases of measles, summary. This chapter discusses the principles of EIA and ICR immunochromatography and the contemporary applications of both methods in the detection of viral antibodies and antigens in the diagnostic virology laboratory. Immunoperoxidase staining, also called histochemical EIA or immunohistological staining, is a type of EIA.ELFA, enzyme-linked fluorescence test, is another type of solid-phase enzyme immunoassays, involved in the development of fluorescence instead of a color as in ELISA. However, the general experimental procedure of ELFA is similar to that of ELISA. The only difference with ELFA is the use of a chromogenic substrate instead of one. A report showed that varying performance values ​​were acquired among six Abbott Architec, Diasorin Liasison, Euroimmun, Acro, Xiamen Biotime, etc. containing SARS-CoV, compared to microneutralization. poor qualitative agreement of IgM and IgG results was obtained in our laboratory tests, Summary. Enzyme assays are standardized experimental protocols established to measure the activity or concentration of enzymes in biochemical or cellular systems. Most enzymatic assays are based on the detection of a final fluorescent, luminescent or spectrophotometric signal. In recent years, fluorescence,