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Tanz N, Werner RA, Eisenreich W, Schmidt H. Assessment of Enzymatic Methods in the δ18O Value Determination of the l-Tyrosine p-Hydroxy Group for Proof of Illegal Meat and Bone Meal Feeding to Cattle. J. Agric. Food Chem. 2011 Aug 09;59(17):9475–83. doi: 10.1021/jf201217r. |