Journal of Radioanalytical and Nuclear Chemistry

, Volume 302, Issue 2, pp 925–930 | Cite as

Ionic liquid-salt based aqueous biphasic system for separation of 109Cd from silver target

  • Kaustab Ghosh
  • Moumita Maiti
  • Susanta Lahiri
  • V. Afzal Hussain
Article

Abstract

Aqueous biphasic system (ABS) is greener alternative to the conventional liquid liquid extraction as ABS does not involve any organic or volatile reagents. Generally ABS systems are composed of polymer and salt rich phases. In this paper a new ABS system is proposed replacing polymer rich phase by water soluble room temperature ionic liquid (RTIL) 1-butyl-3-methylimidazolium Chloride ([bmim]Cl) and kosmotropic salt K2HPO4. The system has been applied to separate the no-carrier-added (NCA) 109Cd (T1/2 = 462.6 days) from the α-particle irradiated bulk Ag target. The optimum separation condition was achieved with the addition of 6 M HNO3 to the ABS, where ~87 % of the bulk Ag was extracted in the IL phase, leaving ~96 % NCA 109Cd in the salt rich phase. The salt rich phase was re-extracted twice with the RTIL to free from bulk Ag. This process achieved an overall separation of 91 % NCA 109Cd free from bulk Ag. The developed method demonstrates minimum requirement of RTIL to carry out the separation. The method is environmentally benign and cost effective.

Keywords

α-Particle irradiated Ag target No-carrier-added 109Cd Aqueous biphasic system 1-Butyl-3-methylimidazolium Chloride Green method 

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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  • Kaustab Ghosh
    • 1
  • Moumita Maiti
    • 2
  • Susanta Lahiri
    • 1
  • V. Afzal Hussain
    • 3
  1. 1.Chemical Sciences DivisionSaha Institute of Nuclear PhysicsKolkataIndia
  2. 2.Department of PhysicsIndian Institute of Technology RoorkeeRoorkeeIndia
  3. 3.Chemical Engineering DepartmentNational Institute of Technology KarnatakaSurathkalIndia

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