Development of a new continuous dissolution apparatus with a hydrophobic membrane for superheavy element chemistry

• Published in: Journal of radioanalytical and nuclear chemistry 2015-02, Vol.303 (2), p.1317-1320
• Main Authors: Ooe, K., Attallah, M. F., Asai, M., Goto, N., Gupta, N. S., Haba, H., Huang, M., Kanaya, J., Kaneya, Y., Kasamatsu, Y., Kitatsuji, Y., Kitayama, Y., Koga, K., Komori, Y., Koyama, T., Kratz, J. V., Lerum, H. V., Miyashita, S., Oshimi, Y., Pershina, V., Sato, D., Sato, T. K., Shigekawa, Y., Shinohara, A., Tanaka, A., Toyoshima, A., Tsukada, K., Tsuto, S., Yokokita, T., Yokoyama, A., Omtvedt, J. P., Nagame, Y., Schädel, M.
• Format: Article
• Language: English
• Subjects: Chemistry; Chemistry and Materials Science; Diagnostic Radiology; Hadrons; Heavy Ions; Inorganic Chemistry; Nuclear Chemistry; Nuclear Physics; Physical Chemistry
• ISSN: 0236-5731; 1588-2780
• DOI: 10.1007/s10967-014-3469-3

A new technique for continuous dissolution of nuclear reaction products transported by a gas-jet system was developed for superheavy element (SHE) chemistry. In this technique, a hydrophobic membrane is utilized to separate an aqueous phase from the gas phase. With this technique, the dissolution efficiencies of short-lived radionuclides of 91m,93m Mo and 176 W were measured. Yields of more than 80 % were observed for short-lived radionuclides at aqueous-phase flow rates of 0.1–0.4 mL/s. The gas flow-rate had no influence on the dissolution efficiency within the studied flow range of 1.0–2.0 L/min. These results show that this technique is applicable for on-line chemical studies of SHEs in the liquid phase.