With the development of technology and the extensive use of plastic products, phthalic acid esters(PAEs) which are extensively used in plastic materials as the additive are easily released into the environment and then transfer into the marine ecosystem by atmospheric deposition,sewage discharge and other approaches.PAEs participate in the recycle of marine geochemistry.Marine sediment is the integrated products in the marine environment.It is essential to develop an accurate method to detect PAEs o...