A method for the simultaneous identification and quantification of dinotefuran and its metabolites 1-methyl-3-(tetrahydro-3-furylmethyl) guanidium dihydrogen(DN) and 1-methyl-3-(tetrahydro-3-furylmethyl) urea(UF) in vegetables(cucumber, tomato, potato, and cabbage) was developed using quick polar pesticides(QuPPe) extraction procedure combined with ultra performance liquid chromatography-tandem mass spectrometry(UPLC-MS/MS). The analytes were separated on a UPLC BEH-C18 column, detected in the positive ion ...