Startseite Production of no-carrier-added 135La at an 18 MeV cyclotron and its purification for investigations at a concentration range down to 10−15 mol/L
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Production of no-carrier-added 135La at an 18 MeV cyclotron and its purification for investigations at a concentration range down to 10−15 mol/L

  • Alexander Mansel EMAIL logo und Karsten Franke
Veröffentlicht/Copyright: 26. August 2015

Abstract

The production of non-commercially available 135La by proton irradiation of an isotopically enriched [135Ba]BaCO3 target at a cyclotron is described. The purification of the radionuclide was performed by a La-selective resin. 135La was separated in no-carrier-added (n.c.a) form in a nitric acid solution with a radiochemical yield of 83 ± 5% and a total activity per batch of 43 ± 3 MBq. The enriched [135Ba]Ba was recycled to the carbonate form with a recovery of 90 ± 3%. On the basis of a detection limit of 1 Bq/mL, solutions of n.c.a. 135La could be measured down to the 1015 mol/L concentration range.

Acknowledgement

We like to thank C. Schößler (HZDR) for the ICP-MS measurements and S. Gruhne (HZDR) for the mechanical manufacturing of the aluminium target system.

Received: 2015-4-22
Accepted: 2015-7-13
Published Online: 2015-8-26
Published in Print: 2015-11-28

©2015 Walter de Gruyter Berlin/Boston

Heruntergeladen am 21.10.2025 von https://www.degruyterbrill.com/document/doi/10.1515/ract-2015-2427/html
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