The analysis of PAs in food samples is complicated because of their very low concentrations and the high matrix effects of high lipid foodstuffs. Thus, it is important to selectively extract the PA contents and effectively eliminate the lipid contents prior to instrumental analysis. In this study, methanol was used as the ultrasonic extraction solvent for PAs from food matrices with var-ious properties because methanol has shown a good solubility for PAs. However, to determine the PAs in aqueous samples such as milk, chloroform-methanol (1:1, v/v) was selected to clearly separate the two phases [23–26]. Using both solvents, the overall extraction yield of PAs was above 80%, giving acceptable values for all of the PAs. Moreover, the sonication method is rapid, simple,and amenable to simultaneous PA extraction in a relatively shorttime.