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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Chromatogram of a skimmed milk sample spiked with 100 ng·mL−1 of each of the selected hormones obtained after the application of the optimized FPSE–UHPLC–MS/MS methodology.