Fast determination of neonicotinoid insecticides in beeswax by ultra-high performance liquid chromatography-tandem mass spectrometry using an enhanced matrix removal-lipid sorbent for clean-up

1. Valverde, S.
2. Ares, A.M.
3. Bernal, J.L.
4. Nozal, M.J.
5. Bernal, J.