Energy dependent tandem mass spectrometric study os plasticizers

Abstract

Phthalic acid ester plasticizers, such as dibutyl phthalate, dihexyl phthalate, dioctyl phthalate, dinonyl phthalate, didecyl phthalate, diundecyl phthalate, and ditridecyl phthalate were examined by electrospray ionization quadrupole time-of-flight tandem mass spectrometry (ESI-QTOF). Phthalic Acid Esters (PAEs) can be fragmented with relative low collision energy from 4 to 15 eV. The fragment ions of the protonated PAEs were created by the loss of fatty alcoholic or alkene groups.