- 著者
 
          - 
             
             河村 浩孝
             
             佐藤 義雄
             
             木野 健一郎
             
             渡辺 義史
             
             相澤 大和
             
             松浦 正和
             
             橋田 浩二
             
             浜口 俊明
             
             山口 健二郎
             
             一丸 忠志
             
             芥川 大祐
             
             南部 透
             
             梅原 隆司
             
             水野 孝之
             
          
 
          
          
          - 出版者
 
          - 公益社団法人 日本分析化学会
 
          
          
          - 雑誌
 
          - 分析化学 (ISSN:05251931)
 
          
          
          - 巻号頁・発行日
 
          - vol.59, no.1, pp.57-63, 2010 (Released:2010-02-15)
 
          
          
          - 参考文献数
 
          - 5
 
          
          
          - 被引用文献数
 
          - 
             
             2
             
             
             2
             
             
          
        
 
        
        
        Boron isotope ratios were analyzed in seven domestic analytical labs for boric acid solutions with various compositions of boron isotope abundances, using an Inductively Coupled Plasma–Quadrupole Mass Spectrometer (ICP-QMS).    Five sample solutions with different isotope abundances of 10B were prepared in the range of 10 to 20% by mixing two boric acid solutions containing natural B and enriched 11B, respectively.    Then, the 10B isotope abundances of each sample were certified by analyzing with thermal ionization mass spectrometry (TI-MS) according to ASTM-C791-04.    Results obtained from each lab have indicated good coincidences with TI-MS results.    Also, the relative standard deviations of results with ICP-QMS of seven analytical labs were 0.11 to 0.81%.    The measurement precision for ICP-QMS would be sufficient in terms of practical use, while taking into consideration a valid requirement required for verifying a depletion of the 10B isotope abundance in the PWR coolant, while this is greater than a nominal analytical error (relative value : 0.22%) for TI-MS shown in ASTM-C791-04.