Separation of arsenic from germanium oxide targets by dry distillation

Abstract

Positron-emitting isotopes of arsenic, ⁷⁰As (T_1/2 = 53 min), ⁷¹As (T_1/2 = 64 h), ⁷²As (T_1/2 = 26 h), and ⁷³As (T_1/2 = 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 language	English
Pages (from-to)	61-66
Number of pages	6
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume	247
Issue number	1
DOIs	https://doi.org/10.1023/A:1006706913108
Publication status	Published - 2001
Externally published	Yes

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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title = "Separation of arsenic from germanium oxide targets by dry distillation",

abstract = "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.",

author = "V. Tolmachev and H. Lundqvist",

note = "Funding Information: We thank the personnel at Uppsala University PET Center and The Svedberg Laboratory for technical assistance. Financial support was given by The Swedish Cancer Society. Copyright: Copyright 2007 Elsevier B.V., All rights reserved.",

year = "2001",

doi = "10.1023/A:1006706913108",

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AU - Tolmachev, V.

AU - Lundqvist, H.

N1 - Funding Information: We thank the personnel at Uppsala University PET Center and The Svedberg Laboratory for technical assistance. Financial support was given by The Swedish Cancer Society. Copyright: Copyright 2007 Elsevier B.V., All rights reserved.

PY - 2001

Y1 - 2001

N2 - 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.

AB - 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.

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Separation of arsenic from germanium oxide targets by dry distillation

Abstract

ASJC Scopus subject areas

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