Affiliation:
1. GSI Helmholtzzentrum für Schwerionenforschung GmbH , 64291 Darmstadt , Germany
2. Advanced Science Research Center, Japan Atomic Energy Agency (JAEA) , Tokai-mura, Ibaraki 319-1195 , Japan
Abstract
Abstract
The development of automated rapid chemistry techniques and their application for batch-wise, chromatographic separations of heavy elements in the liquid-phase are outlined. Starting in the mid-1970s with manually performed separations using pressurized liquid-chromatography techniques, this development led to the first version of the Automated Rapid Chemistry Apparatus, ARCA, in the early 1980s. After a breakthrough to a much higher level of automation and miniaturization, the new apparatus ARCA II was built in the late 1980s. Based on it, the Automated Ion-exchange separation apparatus coupled with the Detection system for Alpha spectroscopy, AIDA, became operational in the late 1990s. In the context of technical and technological advancements, this article discusses the successful application of these instruments for (i) the search for superheavy elements, (ii) cross section measurements of actinide elements produced in multi-nucleon transfer reactions with actinide targets, (iii) chemical separation and characterization of the heavy actinides mendelevium, Md, and lawrencium, Lr, and (iv) studies of the transactinide elements rutherfordium, Rf, dubnium, Db, and seaborgium, Sg. Details of the separations are outlined together with the big advancements made over time and the limitations reached. For the transactinide elements, examples are given for their observed chemical behavior; often affected by an interplay between hydrolysis and complex formation. Influenced by relativistic effects, chemical properties of these elements sometimes deviated from those of their lighter homologs in the Periodic Table.
Subject
Physical and Theoretical Chemistry
Reference115 articles.
1. Herrmann, G.: Superheavy elements. In: A. G. Maddock, International Review of Science, Inorganic Chemistry Series Two, Vol. 8, Radiochemistry (1975), Butterworths, London, p. 221.
2. Herrmann, G.: Historical reminiscences. In: M. Schädel, D. Shaughnessy (Eds.), The Chemistry of Superheavy Elements, Second Edition (2014), Springer, Heidelberg, p. 485.
3. Herrmann, G., Trautmann, N.: Rapid chemical methods for identification and study of short-lived nuclides. Ann. Rev. Nucl. Part. Sci. 32, 117 (1982).10.1146/annurev.ns.32.120182.001001
4. Trautmann, N., Herrmann, G.: Rapid chemical separation procedures. J. Radioanal. Chem. 32, 533 (1976).10.1007/BF02517523
5. Schädel, M., Trautmann, N., Herrmann, G.: Fast separation of lanthanides by high pressure liquid chromatography. Radiochim. Acta 24, 27 (1977).
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