Determination of spirocyclic tetronic/tetramic acid derivatives and neonicotinoid insecticides in fruits and vegetables by liquid chromatography and mass spectrometry after dispersive liquid-liquid microextraction

1. Pastor-Belda, M.
2. Garrido, I.
3. Campillo, N.
4. Viñas, P.
5. Hellín, P.
6. Flores, P.
7. Fenoll, J.