Solvent Extraction and Ion Exchange in Radiochemistry

Taking a deeper look into the roles of amines in atomic absorption spectrometry

“…The first application of amines in the extraction systems relates to the field of liquid ionic exchangers. 59 The ionic exchange process between two immiscible phases, usually aqueous and organic solvents, is a unique LPE by which an ionic species is selectively transferred through a liquid–liquid interphase. The technique of liquid ionic exchanger uses amines (or acids) with long chains dissolved in organic solvents for extracting ionic species from the strong acid aqueous solutions.…”

The use of microfluidic devices in solvent extraction

“…Since those earlier studies, solvent extraction has successfully grown and transformed into a fully mature and widespread technology. SX is extensively used in the production of metals, wastewater recycling, recovery of spent nuclear fuels as well as purification and concentration of many solutes of biological importance such as DNA and pharmaceuticals . Given this broad spectrum of applications, it is difficult to classify solvent extraction methods; the term ‘extraction’ has indeed been loosely referred to mass transport of solutes in a multitude of liquid/liquid systems.…”