A Microfluidic Device for Sample Pretreatment by Laminar Flow Extraction

Microfluidic chip is the most active field and frontier of μTAS. In comparison to other aspects of researches on microfluidic chips, the work on sample pretreatment units are in the preliminary stage. In this study, a microfluidic device for extraction was devised and fabricated. The extraction efficiency of the microfluidic device was investigated by two phase fluid 0.1% Rhodamine-B aqueous solution and Hexyl alcohol. The results demonstrated that the microfluidic chip worked well in the first two days and might be integrated in a complex chip as a potential tool for sample pretreatment.