High-throughput mini/microextractors are essential for mini/microextraction in industrial production. However, they are scarcely used in practice. This study presents a two-stage miniextractor with a focusing inlet that was fabricated by a selective dimension scale-out based on an oscillating feedback microextractor. The results indicate that the miniextractor enjoys the merits of microfluidics even at a maximum total throughput of 8.4 L/h with respect to a residence time of less than 0.15 s. Volumetric mass transfer coefficients for the miniextractor were approximately 1 or 2 orders of magnitude higher than those of conventional large-scale extractors and equal to or 1 order of magnitude higher than those of other micro/miniextractors. Furthermore, flow patterns and mass transfer characteristics in the miniextractor were experimentally investigated. The results suggest that the asymmetrical feedback channels, longer mixing chamber, and smaller angle of the exit splitter enhance extraction performance.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.