QCA (Quinoxaline-2-carboxylic acid) ELISA Kit )

The Assay Genie QCA (Quinoxaline-2-carboxylic acid) ELISA Kit is a competitive immunoassay developed for residue monitoring in edible tissues, primarily muscle samples sourced from food-producing animals. Quinoxaline-2-carboxylic acid is the principal marker metabolite of carbadox and olaquindox, antimicrobial growth promoters historically administered to swine and other livestock, and its quantitative detection supports compliance with veterinary drug residue limits in meat products.

The kit contains a pre-coated microplate, competitive QCA standards, specific antibodies, buffers, and substrate reagents for quantitative analysis. Muscle samples are homogenized in buffer, extracted, and centrifuged before loading. For research use only, the assay helps food safety laboratories screen pork, beef, and poultry muscle for residual quinoxaline contamination above regulatory action levels.