Simultaneous determination of betaines and other quaternary ammonium related compounds in bee pollen by hydrophilic interaction liquid chromatography-mass spectrometry

Microchemical Journal, Vol. 157, 2020

1. Ares, A.M.
2. Toribio, L.
3. Nozal, M.J.
4. Martín, M.T.
5. Bernal, J.