Determination of selenomethionine and seleno-methyl-selenocysteine in biota by ultrasonic-assisted enzymatic digestion and multi-shot stir bar sorptive extraction-thermal desorption-gas chromatography-mass spectrometry

1. Mellano, F.
2. Bujalance, M.
3. Giráldez, I.
4. Ruiz-Azcona, P.
5. Sánchez-Rodas, D.
6. Morales, E.