Solid Phase Membrane Extraction Combined with Ultrasonic Wave Desorption-Gas Chromatography-Mass Spectrometry for Analysis of Phthalate Esters in Water / 分析化学

ABSTRACT

Phthalate esters (PAEs) are commonly used plasticizers and have caused pollution to the environment due to their widespread use.Therefore, many countries have listed such compounds as a priority list of pollutants, and it is of great significance to establish an accurate analysis method for monitoring the pollution of PAEs in water.A method of solid phase membrane extraction combined with ultrasonic wave desortion-gas chromatography-mass spectrometer for analysis of PAEs in water was established in this study.The extraction and desorb conditions were optimized.In this study, the samples were ultrasonic wave desorbed for 7 min at bath temperature of 40℃ and ultrasonic powder of 50%.The detection limits (S/N>3) of this method were between 0.05 μg/L and 0.26 μg/L, the recoveries in different matrixes were between 76.2% and 112.3%, and the relative standard deviations were below 10%.