Abstract:Introduced a way to measure 16 kinds of phthalate esters from wine by using internal standard on GC—MS. Diethyl terephthalate as the internal standards were added in wine, after reduced the alcohol concentration by adding distilled water. The hexane extraction efficiency of 16 kinds of PAEs was improved significantly. The results revealed that the quantitative detection of the linear was in a range of 0.25~6.00 mg/L, which the correlation coefficient was more than 0.997. Through the measurement of real samples, the method recovery was in 31.2%~109.0%, and the RSD was lower than 10%. To summarize, this approach was easy to operate, had accurate results and good reproducibility. Besides, it can totally meet the requirement of the determination of phthalate esters in wine.