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Solvent impregnated resin
Solvent impregnated resins (SIRs) are commercially available (macro)porous resins impregnated with a solvent/an extractant. In this approach, a liquid extractant is contained within the pores of (adsorption) particles. Usually, the extractant is an organic liquid. Its purpose is to extract one or more dissolved components from a surrounding aqueous environment. The basic principle combines adsorption, chromatography and liquid-liquid extraction.
==History==
The principle of Solvent Impregnated Resins was first shown in 1971 by Abraham Warshawsky.〔Warshawsky, A. (1971). South African Patent Application 71/5637.〕 This first venture was aimed at the extraction of metals. Ever since then, SIRs have been mainly used for metal extraction, be it heavy metals or specifically radioactive metals. Much research on SIRs has been done by J.L Cortina and e.g. N. Kabay, K. Jerabek or J. Serarols.〔Kabay, N.; Cortina, J.L.; Trochimczuk, A.; Streat, M. (2010). “Solvent-impregnated resins (SIRs) – Methods of preparation and their applications.” React. Funct. Polym. 70: 484–496.〕 However, lately investigations also go towards using SIRs for the separation of natural compounds, and even for separation of biotechnological products.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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