Summary
High-pressure liquid chromatography (HPLC) was used to detect added cows' milk in goat and ewe's milk. Analysis of the whey proteins enabled detection of mixtures in proportions of less than 1%. The method does not distinguish between goat and ewe's milk.
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Romero, C., Perez-Andújar, O., Olmedo, A. et al. Detection of cow's milk in ewe's or goat's milk by HPLC. Chromatographia 42, 181–184 (1996). https://doi.org/10.1007/BF02269650
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DOI: https://doi.org/10.1007/BF02269650