{"title":"Separation of Long-Lived 108mAg from 152Eu and 60Co Using Polyethylene Glycol Based Aqueous Two Phase Systems","authors":"Sayantani Mitra, Nabanita Naskar, Susanta Lahiri","doi":"10.1007/s10953-023-01318-8","DOIUrl":null,"url":null,"abstract":"<div><p>An environmentally benign aqueous two phase system has been developed for the separation of <sup>108m</sup>Ag from <sup>152</sup>Eu and <sup>60</sup>Co using polyethylene glycol/salt system. Twelve salts (nine inorganic, three organic) and PEG 4000 were chosen to form the ATPS out of which, the best separation was observed for 3 mL 2 mol·dm<sup>−3</sup> K<sub>3</sub>PO<sub>4</sub>: 3 mL PEG 4000 followed by 3 mL 2 mol·dm<sup>−3</sup> Na<sub>2</sub>SO<sub>4</sub>: 3 mL PEG 4000. In both cases, silver was preferentially extracted in the PEG rich phase. The separation factors achieved were <i>S</i><sub>Ag/Co</sub> = 2.11 × 10<sup>3</sup> and <i>S</i><sub>Ag/Eu</sub> = 2.79 × 10<sup>2</sup> in the case of 2 mol·dm<sup>−3</sup> K<sub>3</sub>PO<sub>4</sub>: PEG 4000 combination.</p></div>","PeriodicalId":666,"journal":{"name":"Journal of Solution Chemistry","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2023-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Solution Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s10953-023-01318-8","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
An environmentally benign aqueous two phase system has been developed for the separation of 108mAg from 152Eu and 60Co using polyethylene glycol/salt system. Twelve salts (nine inorganic, three organic) and PEG 4000 were chosen to form the ATPS out of which, the best separation was observed for 3 mL 2 mol·dm−3 K3PO4: 3 mL PEG 4000 followed by 3 mL 2 mol·dm−3 Na2SO4: 3 mL PEG 4000. In both cases, silver was preferentially extracted in the PEG rich phase. The separation factors achieved were SAg/Co = 2.11 × 103 and SAg/Eu = 2.79 × 102 in the case of 2 mol·dm−3 K3PO4: PEG 4000 combination.
期刊介绍：
Journal of Solution Chemistry offers a forum for research on the physical chemistry of liquid solutions in such fields as physical chemistry, chemical physics, molecular biology, statistical mechanics, biochemistry, and biophysics. The emphasis is on papers in which the solvent plays a dominant rather than incidental role. Featured topics include experimental investigations of the dielectric, spectroscopic, thermodynamic, transport, or relaxation properties of both electrolytes and nonelectrolytes in liquid solutions.
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