triphasic bars liquid phase microextraction thermosealed for preconcentration of metal species

摘要

triphasic bars microextraction liquid phase by heat for preconcentration of metal species. This is a process for the preparation of bar systems for liquid phase microextraction preconcentration of metal species. The system preconcentration based on the use of hollow fiber capillary commercial shaped bar are left free in solution. It is said that the system is phase as the sample and the aqueous solution inside the capillary are separated by an organic solution permeates the pores of the material constituting the fiber. The preparation process of the fibers is filled inside with a solution which allows to retain the metal in it, whose ends are sealed by heating, allowing shaping bar microextraction that can be used as routine system preconcentration of metal species.