Zhu et al. (2002) High precision measurement of titanium isotope ratios by plasma source mass spectrometry, International Journal of Mass Spectrometry, 220, 21-29, doi:10.1016/S1387-3806(02)00767-4. < 20200512111309-637353 > pub
  • abstract:

    A method using multiple-collector inductively coupled plasma source mass spectrometry for the precise measurement of Ti isotope composition in natural materials has been developed. Instrumental mass discrimination is corrected using a “standard-sample bracketing” approach by expressing the isotope ratios of samples relative to those of the bracketing standard. Variations in 47Ti/46Ti, 48Ti/46Ti, 49Ti/46Ti and 50Ti/46Ti ratios of samples are expressed in ε units which are deviations in parts per 104 from the same isotope ratios of the reference material. The long-term repeatability at the 2 standard deviation level is 0.4, 0.6, 0.7 and 0.8 ε units in terms of 47Ti/46Ti, 48Ti/46Ti, 49Ti/46Ti and 50Ti/46Ti ratio measurements, respectively. The technique reported here makes it possible for the first time that both mass-dependent fractionation and isotope anomalies of Ti isotopes in natural materials can be measured to high precision.

  • doi: 10.1016/S1387-3806(02)00767-4
  • modified at 2020-05-12
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  • name
  • Zhu, Xiang-Kun
  • Makishima, Akio
  • Guo, Yueling
  • Belshawl, Nick S.
  • O'Nions, R.Keith