Nitrofurans have been widely used in veterinary practice as antibacterial agents in the treatment of pigs, poultry, fish and shrimp. Bans on nitrofurans were introduced within the EU primarily because of concerns about their carcinogenicity and mutagenicity. Several other non-European countries have also banned all use of nitrofurans in food producing animals. Tissue residue of Nitrofurazone is mainly protein bound, therefore the main metabolite semicarbazide (SEM) is proposed as the marker residue.

The Randox Food Diagnostics SEM ELISA test kit detects SEM, one of the nitrofuran metabolites for residues in applicable sample types including prawn and shrimp.

Product Number: NF3461

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AssayLOD (ppb)CompoundCross Reactivity %
SEM0.25 (Prawn/Shrimp)4' NBISEM*
*LOD is standardised to this compound