A new and simple liquid phase microextraction technique termed as vortex solvent bar microextaction (VSBME) was developed.In the procedure,a hollow fiber membrane of 2-cm length was immersed in the organic extractant solvent (xylene) and then threw into a stirred aqueous sample solution.One vortex was formed in the middle of the vessel under the vigorous magnetic stirring.Hydrophobic chemicals were focused at the bottom of the vortex and the extraction was facilitated.