Liquid–liquid extraction of divalent transition metal ions with a novel bis-β-ketoester extraction reagent

Evaluation of Selectivity of Rare Earth Metals by Hexane-1,6-diyl bis(4,4,4-trifluoro-3-oxobutanoate)

“…H 2 hdfob was synthesized by previous report [5]. Rare earth elements, and other chemicals used in the experiments were purchased from Tokyo Chemical Industry Co., Ltd and Kanto Chemical Co., Inc.…”

A new coprecipitation method without carrier element for separation and preconcentration of some metal ions at trace levels in water and food samples

“…To overcome these limitations, several technologies have been widely used to pre-concentrate and separate trace metals, such as liquid-liquid extraction [5,6], cloud point extraction [7,8], solid phase extraction [9][10][11][12][13], membrane filtration [14,15] and electroanalytical [16,17] techniques.…”