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Haraga, Tomoko; Saito, Shingo*
Bunseki Kagaku, 70(12), p.671 - 679, 2021/12
We developed highly sensitive capillary electrophoresis-laser-induced fluorescence detection methods for lanthanide (Ln) and actinide (An) ions with small sample volume and low emission of waste, by which the radiation risk can be minimized. Specifically, determination of Nd ion in spent nuclear fuel, effective separation between Am and Cm ion, and specific detection of UO
in real radioactive samples were achieved by molecular design of fluorescence probes composed of an aminocarboxylate chelating moiety, a fluorophore and a spacer, and unique separation mode based on dynamic ternary complexation. We found that there are appropriate combination of probe and ternary complexation for detection and separation of each Ln and An ions. For example, acyclic and macrocyclic hexadentate is suitable for Ln
, Am and Cm, and planer tetradentate with 
electron system is specific for UO, with ppt-sub ppt level detection.
Haraga, Tomoko; Tsujimura, Hiroto*; Miyauchi, Saori*; Kamimura, Takuya*; Shibukawa, Masami*; Saito, Shingo*
Electrophoresis, 41(13-14), p.1152 - 1159, 2020/07
Times Cited Count：7 Percentile：44.04(Biochemical Research Methods)A novel combination of CE-based separation techniques was used for the precise fractionation of ionic compounds from impurities. The combination of on-capillary concentration and separation using transient isotachophoresis, with multiple injections and a two-point detection system provided higher efficiency, and accuracy at a microliter-scale injection volume, than when CE was individually used for purification. In this paper, we present successful applications of the CE fractionation techniques for the purification of fluorescein, fluorescein-4-isothiocyanate, two fluorescent metal ion probes, and a fluorescein-modified DNA aptamer. The purity of the isolated fluorescent probes ranged from 95 to 99%. The purified probe solutions were practical for use as purified stock solutions. The method developed was useful for the purification of anionic fluorescent reagents to be of ultratrace analytical grade for use with CE-LIF.
Masnavi, M.*; Nakajima, Mitsuo*; Sasaki, Akira; Hotta, Eiki*; Horioka, Kazuhiko*
Applied Physics Letters, 87(11), p.111502_1 - 111502_3, 2005/09
Times Cited Count：4 Percentile：17.85(Physics, Applied)no abstracts in English
Masaoka, Sei; Nakamura, Tatsuya; Yamagishi, Hideshi; Soyama, Kazuhiko
JAERI-Research 2002-003, 22 Pages, 2002/02
JAERI-Research-2002-003.pdf:1.64MB
no abstracts in English
Kawamura, Yoshinori; Konishi, Satoshi; Nishi, Masataka
Fusion Engineering and Design, 58-59, p.389 - 394, 2001/11
Times Cited Count：26 Percentile：85(Nuclear Science & Technology)no abstracts in English
Hosokai, Tomonao; Kando, Masaki; Dewa, Hidenori; Kotaki, Hideyuki; Kondo, Shuji; Hasegawa, Noboru; Horioka, Kazuhiko*; Nakajima, Kazuhisa
Nuclear Instruments and Methods in Physics Research A, 455(1), p.155 - 160, 2000/11
Times Cited Count：1 Percentile：20.04(Instruments & Instrumentation)no abstracts in English
Nakajima, Kazuhisa; Dewa, Hidenori; Kando, Masaki; Hosokai, Tomonao; Kotaki, Hideyuki
Genshiryoku eye, 46(6), p.62 - 63, 2000/06
no abstracts in English
Hosokai, Tomonao*; Kando, Masaki*; Dewa, Hidenori*; Kotaki, Hideyuki; Kondo, Shuji; Hasegawa, Noboru; Nakajima, Kazuhisa*; Horioka, Kazuhiko*
Optics Letters, 25(1), p.10 - 12, 2000/01
Times Cited Count：131 Percentile：96.8(Optics)no abstracts in English
Hosokai, Tomonao*; Kondo, Shuji; Kando, Masaki*; *; Horioka, Kazuhiko*; Nakajima, Kazuhisa*
Inst. Phys. Conf. Ser., (159), p.179 - 182, 1999/00
no abstracts in English
Nakajima, Kazuhisa; Nakanishi, Hiroshi*; Ogata, Atsushi*; Harano, Hideki*; Ueda, Toru*; Uesaka, Mitsuru*; Watanabe, Takahiro*; Yoshii, Koji*; Dewa, Hidenori; Hosokai, Tomonao; et al.
Proceedings of 6th European Particle Accelerator Conference (EPAC98) (CD-ROM), p.809 - 811, 1998/01
no abstracts in English
Nihon Genshiryoku Gakkai-Shi, 13(7), p.410 - 411, 1971/00
no abstracts in English
