“…Over the past decades, microextractors have attained full development owing to properties including small volume, high efficiency, low fabrication cost, safety, and better controllability. − These advantages overcome problems emerging on traditional extraction devices such as pulsed extraction columns, , mixer-settlers, , and centrifugal extractors , with respect to a large factory area, large volume of solvent consumption, high energy consumption, long residence time, and high costs of fabrication and control. , …”