Dispersive micro solid-phase extraction with graphene oxide for the determination of phenolic compounds in dietary supplements by ultra high performance liquid chromatography coupled with quadrupole time-of-flight tandem mass spectrometry - Hu, S S; Cao, W; Da, J H; Dai, H B; Cao, J; Ye, L H; Li, X Y; Chu, C (Food Anal Methods, 2015)