Online Coupling of Two-Phase Flow Solvent Extraction Microfluidics with Inductively Coupled Plasma Mass Spectrometry

摘要

Background: Recently, two-phase flow solvent extraction has been emerged as a promising method for the extraction of radionuclides because it enables minimized radiation exposure and little waste emission. In the field, the coupling of microfluidics-based solvent extraction and stripping with ICP-MS is expected because the combination enables highly sensitive and selective analysis. The previous works have successfully coupled only a single microchip with ICP-MS, leading to lack of selectivity and the need for handling radioactive materials during batch extraction. The study reports for the first time the successful coupling of combined extraction, stripping microchips with ICP-MS.