Separation of no-carrier-added 195(m,g),197mHg from Au target by ionic liquid and salt based aqueous biphasic systems
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Ionic liquid-salt based aqueous biphasic systems (ABS) are examples of ABS of salt–salt combination. In the present study, ABS composed of water soluble ionic liquid (IL) 1-butyl-3-methylimidazolium chloride ([bmim]Cl) and kosmotropic salts K3PO4, K2CO3 were applied in the separation of no-carrier-added (NCA) 195(m,g),197mHg radionuclides from bulk Au target. The 195(m,g),197mHg radionuclides were produced by irradiating gold foil with 23 MeV protons. NCA Hg radionuclides were extracted into the IL phase leaving bulk Au in the salt rich phase. At the optimized condition high separation factors, 3.5 × 104 and 5.5 × 104 were obtained when K3PO4 and K2CO3 were used as salt rich phase.
KeywordsProton irradiated Au target 195(m,g),197mHg Aqueous biphasic systems Ionic liquid Green separation
We are thankful to BARC-TIFR Pelletron staffs for their help and co-operation during our experiment. We are also thankful to the TIFR target laboratory for their help during target preparation. This work is part of the SINP-DAE-12 five year plan project ‘Trace Ultra Trace Analysis and Isotope Production (TULIP)’ for providing financial support.
- 4.Maiti M, Ghosh K, Lahiri S (2015) Green methods for the radiochemical separations of no-carrier-added 61Cu, 62Zn from 7Li irradiated cobalt target. J Radioanal Nucl Chem 303:2033–2040Google Scholar
- 5.Gutowski KE, Broker GA, Willauer HD, Huddleston JG, Swatloski RP, Holbrey JD, Rogers RD (2003) Controlling the aqueous miscibility of ionic liquids: aqueous biphasic systems of water-miscible ionic liquids and water-structuring salts for recycle, metathesis, and separations. J Am Chem Soc 125:6632–6633CrossRefGoogle Scholar
- 7.World Health Organization (2011) Guidelines for drinking-water quality, 4th edn. WHO, GenevaGoogle Scholar
- 8.United States Environmental Protection Agency (2009) National primary drinking water regulations. EPA 816-F-09-004Google Scholar
- 22.Sudár S, Qaim SM (2006) Cross sections for the formation of 195Hgm, g, 197Hgm, g, and 196Aum, g in α and 3He-particle induced reactions on Pt: effect of level density parameters on the calculated isomeric cross-section ratio. Phys Rev C 73:034613Google Scholar
- 31.Maji S, Basu S, Lahiri S (2007) Studies on multielemental uptake of amide incorporated Amberlite IRC-50 using tracer packet techniques. Indian J Chem 46A:97–100Google Scholar
- 32.Roy K, Basu S, Nayak D, Lahiri S (2004) Studies on the multielemental uptake by thiosemicarbazide incorporated Amberlite IRC-50 using tracer packet technique. Indian J Chem 43A:1152–1155Google Scholar
- 37.Cotton FA, Wilkinson G (1984) The elements of the second and third transition series. Advanced inorganic chemistry—a comprehensive text, 3rd edn. Wiley Eastern Limited, New DelhiGoogle Scholar
- 38.Mironov IV (2005) Properties of gold(III) hydroxide and aquahydroxogold(III) complexes in aqueous solution. Russ J Inorg Chem 50:1115–1120Google Scholar
- 39.Kozin LF, Hansen S (2013) Chemical properties of mercury. Mercury handbook: chemistry, applications and environmental impact. The Royal Society of Chemistry, CambridgeGoogle Scholar