Trennung von V, Cr und Mn aus Stahl und Aktivierungsanalyse der Legierungselemente mit 14 MeV-Neutronen

Schmitt, B.; Segebade, Christian

doi:10.1007/bf00445955

Cited by 2 publications

(2 citation statements)

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“…In order to avoid those, ion exchange chromatography was utilized with an ammonium citrate solution as a non-hazardous, further on applicable eluent. A hint for the development came from a published macroscopic separation of manganese and chromium using the ion exchange resin DOWEX 50W×8 [21] and a publication about the behaviour of manganese on the latter resin [22].…”

Section: Separation Of No-carrier-added Productsmentioning

confidence: 99%

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Cross-section measurements for the formation of manganese-52 and its isolation with a non-hazardous eluent

et al. 2013

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Nuclear reaction / Cross section / Thick target yield / Integral yield / Separation of positron emitter52 Mn / Ion exchange chromatography Summary. With respect to the production of no-carrieradded 52 Mn nuclear reactions on natural chromium were investigated. Cross sections of the reactions nat Cr( p, x) 48 V, 48,49,51 Cr, 52g,m Mn were determined in the proton energy range of 7.6 to 45 MeV. Additionally, production yields of 52g,m Mn and 51 Cr were measured in the energy range from 8.2 to 16.9 MeV and therefrom the calculated saturation thick target yields were obtained as (2.55 ± 0.31), (6.96 ± 0.57), and (1.53 ± 0.15) GBq/μA, respectively.For in vivo applications like PET, low toxicity is critical and sufficient activity of a radiolabelled compound mandatory. Thus, additional purification steps after separation of radionuclides and target materials have to be avoided. However, no isolation procedure has been reported in the literature so far where radiomanganese is directly obtained in a nonhazardous solution. Therefore a new separation procedure was developed utilizing the cation-exchange resin DOWEX 50W×8 (H + -form). 52g Mn was quantitatively isolated from "bulk" chromium after 3 to 4 h in non-hazardous 0.067 M ammonium citrate solution. Up to 99% of 52g Mn activity was harvested within 10 to 15 mL eluent solution with no measureable 51 Cr impurities.

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Section: Separation Of No-carrier-added Productsmentioning

confidence: 99%

“…With the macroscopic separation [21] the typical formation of SO 3 haze was used as indicator for an adequate decrease of volume. In the present separation the volumes of sulfuric acid were too low to recognize the formation of a characteristic SO 3 haze.…”

Section: Target Processingmentioning

confidence: 99%