Aarkrog, A.

Bruun, J.

Chen, Q.J.

Dahlgaard, H.

Holm Pedersen, A.

Jensen, H.L.

Mandrup, K.

Nielsen, Sven Poul

The chemical yield of technetium by an anion exchange (AG 1-X4) procedure is determined under different conditions from 200 liters sea water. A new method for collecting 99Tc from 200-400 liters sea water has been developed by anion exchange. The evaporation rates of RuO4 and TcO-4 are determined at 100°C in 0.1 N H2SO4. A higher decontamination factor 2.S x105 - 2.4 x 107 for ruthenium is obtained by evaporating the RuO4 at 100°C in 0.1 N H2SO4. The ruthenium is oxidized to RuO-4 with NaClO at pH = 9. Fe(OH)3 scavenging, AgCl precipitation and 5% TIOA/xylene extraction at controlled valence are used for decontamination of ruthenium, 110mAg and other nuclides. The chemical yield of technetium-99 in the procedure is about 70%

Online Research Database In Technology

Determination of <sup>9</sup><sup>9</sup>Tc in Environmental Samples by Anion Exchange

http://orbit.dtu.dk/ws/files/55726623/ris_m_2739.pdf

Determination of <sup>9</sup><sup>9</sup>Tc in Environmental Samples by Anion Exchange

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