Development of a simple device for dispersive liquid–liquid microextraction with lighter than water organic solvents: Isolation and enrichment of glycyrrhizic acid from licorice

A simple device was developed that makes the use of lighter than water organic solvents feasible in dispersive liquid-liquid microextraction (DLLME) method. In the ordinary DLLME, the fact that a heavier than water organic solvent must be used, to be sedimented at the conical bottom of a centrifu…