New solid extractants for preconcentrating noble metals |
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| Authors: | O B Mokhodoeva G V Myasoedova I V Kubrakova A V Nikulin O I Artyushin I L Odinets |
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| Institution: | (1) Technical Faculty Bor, University of Belgrade, VJ 12, Bor, 19210, Serbia;(2) School of Basic Sciences, Swiss Federal Institute of Technology, Lausanne, 1015, Switzerland;(3) Haute Ecole Valaisanne, Sion, Switzerland |
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| Abstract: | New solid extractants are synthesized with the use of imidazolium and phosphonium ionic liquids for preconcentrating noble
metals. Ionic liquids are selected and conditions for their immobilization on various solid matrices are found. The adsorption
properties of the synthesized solid extractants for platinum(IV) in hydrochloric acid solutions are studied. The solid extractants
obtained by binding 1-hexadecyl-3-methylimidazolium bromide and trihexyltetradecylphosphonium chloride to polymeric matrices
and multiwall carbon nanotubes possess good kinetic properties and selectivity in 1 M HCl, and can be used to preconcentrate
Pt(IV), Pd(II), and Au(III) in combined methods of their determination. |
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