Nakano, Toshio & Nakamura, Eizo (1998) Static multicollection of Cs2BO2+ ions for precise boron isotope analysis with positive thermal ionization mass spectrometry, International Journal of Mass Spectrometry, 176, 13-21, doi:10.1016/S1387-3806(98)14014-9. < 20200428190721-150310 > pub
  • abstract:

    Static multicollection of Cs2BO2+ ions (mz=308 and 309) for precise boron isotope analysis has been established by employing a newly developed double collector package in the modified Finnigan-MAT 261 thermal ionization mass spectrometer (TIMS). This method reduces the data acquisition time to 5 min which is approximately one order of magnitude shorter than conventional peak jumping method, and it is easier to measure small sample size as low as 0.1 μg of boron. The analytical precision for individual runs and reproducibility of measured 11B/10B ratios of NBS 951 boric acid with static multicollection, respectively, are ±0.007−0.025% (2σmean) and ±0.012% (2σmean), for 1 μg of B, and ±0.015−0.032% (2σmean) and ±0.023% (2σmean), for 0.1 μg of B. This analytical precision and reproducibility are essentially identical to those previous works with peak jumping method measuring sample amounts more than 1 μg of B.

  • doi: 10.1016/S1387-3806(98)14014-9
  • modified at 2020-05-07
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  • name
  • Nakano, Toshio
  • Nakamura, Eizo