Determination of phthalic acid esters in water samples using core-shell poly(dopamine) magnetic nanoparticles and gas chromatography tandem mass spectrometry

摘要

Highlights?m-NPs were used as sorbents for the m-μdSPE of phthalates from water samples.?GC–MS/MS was used for analyte determination.?Relative recovery values ranged between 71 and 120%, with RSD values below 19%.?The LOQs of the method ranged between 9 and 20ng/L.?DEP and DBP were found in most of the samples at concentrations above 0.36μg/L.AbstractIn this work, the first application of core-shell poly(dopamine) magnetic nanoparticles as sorbent for the extraction of a group of eleven phthalic acid esters of interest (i.e. diethyl phthalate (DEP), dipropyl phthalate (DPP), dibutyl phthalate (DBP), bis-isopentyl phthalate (DIPP), bis-n-pentyl phthalate (DNPP), benzylbutyl phthalate (BBP), dicyclohexyl phthalate (DCHP), di-(2-ethylhexyl) phthalate (DEHP), di-