Liquid chromatography-electrospray ionization-mass spectrometry method in multiple reaction monitoring mode to determine 17α-ethynylestradiol residues in cattle hair without previous digestion

1. Pedreira, S.
2. Lolo, M.
3. Vázquez, B.I.
4. Franco, C.M.
5. Cepeda, A.
6. Fente, C.