Détermination des espèces et Quantification en mélanges utilisant la spectrométrie de masse MRM de Peptides appliquée à l'authentification de la viande

We present a protocol for identifying and quantifying the components in mixtures of species possessing similar proteins. Mass spectrometry detects peptides for identification, and gives relative quantitation by ratios of peak areas. As a tool food for fraud detection, the method can detect 1% horse in beef.