Tetsuya Yokoyama & Eizo Nakamura (2004) Precise analysis of the 228Ra/226Ra isotope ratio for short-lived U-series disequilibria in natural samples by total evaporation thermal ionization mass spectrometry (TE-TIMS), Journal of Analytical Atomic Spectrometry, 19, 717-727, doi:10.1039/B400829D. < 20191011113816-801170 > pub
Table 3 Repeated analysis of 226Ra/228 Ra ratio in natural sample < 20191011143345-502579 > pub
measured unit CA076
226Ra/228Ra a 316.4 (1.1)
228Ra/232Th a 0.998 (0.012)
[Th] a µg/g 8.31
230Th/232Th a 0.982
226Ra/230Th a 1.164
(a) determined by U-Series_procedures of Yokoyama et al. (1999, 2001, 2003) on TIMS Thermo-Fisher MAT262
name physical-form quantity unit global-id
CA076 pub powder 20100416092338636.hkitagawa

The table is created from analysis shown below. The rowname Ra226zRa228 (Yokoyama et al., 2004) filters out analysis. Upper analysis has priority.To list more analysis, add a stone in stone sub-tab.

  • name