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Yanagisawa, Kayo; Matsueda, Makoto; Furukawa, Makoto*; Ishiniwa, Hiroko*; Wada, Toshihiro*; Hirata, Takafumi*; Takagai, Yoshitaka*
Analyst, 148(18), p.4291 - 4299, 2023/09
Times Cited Count：0 Percentile：0(Chemistry, Analytical)Quantitative imaging of trace elements was successfully performed by online isotope dilution laser ablation inductively coupled plasma mass spectrometry (online LA-ICP-IDMS). The sample aerosols produced by LA are mixed online with the mist created from an isotopically enriched spike solution via an in-house cyclonic spray chamber, which has a gas port on the top. Quantification was continuously achieved in each spot; subsequently, quantitative imaging was realized. Fe and Sr were selected as the model elements, and their spot quantifications based on online-isotope dilution. The method was applied to actual biological hard tissues, and the results were compared with electron probe microanalyzer data.
Analytica Chimica Acta, 80, p.117 - 123, 1975/00
Times Cited Count：13no abstracts in English
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Bunseki Kagaku, 23(7), p.804 - 810, 1974/07
no abstracts in English
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JAERI-M 5097, 35 Pages, 1973/01
no abstracts in English
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Bunseki Kagaku, 20(9), p.1085 - 1091, 1971/00
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Bunseki Kagaku, 17(1), p.82 - 85, 1968/00
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Shitsuryo Bunseki, 9(17), p.37 - 39, 1961/00
no abstracts in English
Pu and 
U for MOX analysis by isotope dilution mass spectrometry and application to actual sampleHorigome, Kazushi; Taguchi, Shigeo; Yamamoto, Masahiko; Inada, Satoshi; Kuno, Takehiko
no journal, ,
no abstracts in English
Yanagisawa, Kayo; Matsueda, Makoto; Furukawa, Makoto*; Hirata, Takafumi*; Takagai, Yoshitaka*
no journal, ,
Determinations of radioisotopes in fuel debris and radioactive wastes are important for decommissioning of Fukushima Daiichi Nuclear Power Plant. Difficult-to-measure radioisotopes such as Sr-90 have been measured by radiometric analysis and inductively coupled plasma-mass spectrometry (ICP-MS), the methods have not achieved the distribution of the radioisotopes on the sample's surface due to its digestion process of the samples before measurements. Laser ablation (LA)-ICP-MS can obtain the distribution information of radionuclides directly on the surface of solid samples. In contrast, the quantification with the method is difficult caused by the spectral interferences and matrix effects from samples. In this study, a quantification method was developed combined with LA-ICP-MS and isotope dilution method. The proposed method was applied for Sr-90 quantification.
Yanagisawa, Kayo; Matsueda, Makoto; Furukawa, Makoto*; Ishiniwa, Hiroko*; Wada, Toshihiro*; Hirata, Takafumi*; Takagai, Yoshitaka*
no journal, ,
Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is more sensitive than other imaging analysis methods. The method requires matrix-compatible certified reference materials (CRMs) for the quantification of target elements. However, CRMs suitable for biological samples are rarely commercially available, making quantification difficult with conventional LA-ICP-MS methods. This study used a dual gas flow system combined with an isotope dilution method. In this system, two aerosols, an ablation sample and a nebulised spike solution, are mixed via a proprietary dual-port chamber. The developed method was used to quantify Fe and Sr in the CRMs and agreed with the certified values. In addition, biological samples (teeth and otoliths) were analysed and compared with values obtained by conventional chemical analysis to demonstrate their potential application for quantitative mapping.
