Influence of radiation effect on extractability of an isobutyl-BTP/ionic liquid system: quantitative analysis and identification of radiolytic products

Abstract

Approaches were established for assessing the influence of radiation effect on the extractability of the 2,6-di(5,6-diisobutyl-1,2,4-triazin-3-yl)pyridine (isobutyl-BTP)/1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide ([C₂mim][NTf₂]) extraction system. The substituted compounds formed between isobutyl-BTP and radicals of [C₂mim][NTf₂], especially imidazolium cation radicals, were responsible for maintaining the partial extraction ability for Dy³⁺ even at 500 kGy.