Separation of arsenic from germanium oxide targets by dry distillation

V. Tolmachev, H. Lundqvist

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)


Positron-emitting isotopes of arsenic, 70As (T1/2 = 53 min), 71As (T1/2 = 64 h), 72As (T1/2 = 26 h), and 73As (T1/2 = 17.8 d) are of interest in biomedical investigations using PET. A fast and simple method for their production using low-energy proton and deuteron reactions on enriched Ge-targets is presented. Dry distillation of GeO2 at 1105°C during 2 hours provides a separation efficiency of more than 60%. The loss of target material is less than one per cent and the irradiated targets can be used several times. The method allows production of diagnostically useful amounts of positron-emitting arsenic isotopes using accelerators commonly available at PET-centres.

Original languageEnglish
Pages (from-to)61-66
Number of pages6
JournalJournal of Radioanalytical and Nuclear Chemistry
Issue number1
Publication statusPublished - 2001
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Nuclear Energy and Engineering
  • Radiology Nuclear Medicine and imaging
  • Pollution
  • Spectroscopy
  • Public Health, Environmental and Occupational Health
  • Health, Toxicology and Mutagenesis

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