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Saito, Kyoichi*; Asai, Shiho
Bunseki Kagaku, 66(11), p.771 - 782, 2017/11
Times Cited Count：1 Percentile：3.39(Chemistry, Analytical)Recovery and purification of rare metals, which are essential ingredients for highly functional materials, generally comes with operational difficulty. In this study, we have developed polymer adsorbents specially designed for highly-efficient adsorption of rare metal ions and exhibited their practical adsorption performances. Radiation-induced graft polymerization, one of the effective modification techniques for polymers, was employed for preparing the proposed adsorbents. Among such adsorbents, a 6-nylon fiber with nucleic-acid base, adenine, on the surface of the fiber demonstrated specific adsorption of ruthenium and palladium ions. In addition, a 6-nylon fiber with an extractant HDEHP (bis (2-ethylhexyl) phophoric acid) that has high affinity for lanthanides, achieved higher separation speed than a commercially available HDEHP-impregnated resin.
Asai, Shiho; Saito, Kyoichi*
Biomedical Research on Trace Elements, 28(1), p.1 - 10, 2017/04
Radionuclides are commonly determined with radiometry and mass spectrometry. For 
-emitting nuclides, the activities can be measured without chemical separation due to the strong penetration ability. In contrast, the measurements of alpha and beta-emitting nuclides are generally associated with tedious and time-consuming chemical separation procedures to remove concomitants. Thus, an adsorbent that achieves rapid separation is desirable to reduce separation time and workload. Our research team has developed compact cartridge-type solid phase extraction materials which enable to facilitate separation procedures. In this review, basic separation performances of the developed cartridges were overviewed along with two application examples to radionuclide-containing samples.
Uemura, Takuya*; Takeda, Tetsuaki; Ichimiya, Koichi*
Nihon Kikai Gakkai Yamanashi Koenkai Koen Rombunshu (020-4), p.49 - 50, 2002/10
A heat transfer experiment was performed using a horizontal circular tube to obtain the heat transfer and fluid flow characteristics in the tube inserted copper wire. From the results obtained in this experiment, it was found that an amount of heat removal in the tube with copper wire inserts increased about 20% comparing with a tube having a smooth wall. A heat transfer coefficient of the tube inserted copper wire also increased 30% to 50% under the constant pumping power condition.
Takeda, Tetsuaki
JAERI-Research 2000-056, 27 Pages, 2000/12
JAERI-Research-2000-056.pdf:1.86MB
no abstracts in English
Hiroki, Akihiro*; Yoshida, Masaru; *; Asano, Masaharu; N.Reber*; R.Spohr*; Kumakura, Minoru*; Katakai, Ryoichi*
J. Polym. Sci., Part A, 36(10), p.1495 - 1500, 1998/00
no abstracts in English
Tokuoka, Naochika*; Kobayashi, Mamoru*; Koyama, Takashi*
PNC TJ1636 96-001, 64 Pages, 1996/03
None
Hosoi, Fumio; *; ; *
Kobunshi Rombunshu, 44(12), p.885 - 891, 1987/12
Times Cited Count：1 Percentile：10.36(Polymer Science)no abstracts in English
Hosoi, Fumio; *; ; *
Kobunshi Rombunshu, 42(6), p.415 - 422, 1985/00
Times Cited Count：2 Percentile：22.32(Polymer Science)no abstracts in English
; ; Kaetsu, Isao
Polymer, 20(1), p.3 - 8, 1979/00
Times Cited Count：52no abstracts in English
; ; Kaetsu, Isao
Polymer, 19(12), p.1379 - 1381, 1978/00
Times Cited Count：18no abstracts in English
Kubota, Masahiko*; Kim, S.-Y.*; Wu, H.*; Watanabe, So; Sano, Yuichi; Takeuchi, Masayuki
no journal, ,
no abstracts in English
