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. Author manuscript; available in PMC: 2019 Feb 1.
Published in final edited form as: Int J Mass Spectrom. 2016 Mar 8;403:15–26. doi: 10.1016/j.ijms.2016.02.003

Fig. 3.

Fig. 3.

(a) 100Ru/101Ru ratios in μ100Ru units for repeated analyses of standard-spike mixes (A and B) and Ru Alfa Aesar standard solution (see EA5 for details). Error bars are the 2SE of each analysis. These data have been corrected using an assumed oxygen isotope composition [32] and correction for mass fractionation using 99Ru/101Ru = 0.745075 and the isotopic species. Spike-standard mix A shows a ~15 ppm 100Ru positive anomaly, identical within analytical uncertainties to the gravimetric prediction (+14.9 ppm). Spike-standard mix B shows a ~30 ppm 100Ru positive anomaly, identical within analytical uncertainties to the gravimetric prediction (+29.3 ppm). (b) 100Ru/101Ru ratios in μ100Ru units for repeated analyses of standard-spike mixes (A and B) and Ru Alfa Aesar standard solution (see EA5 for details). Error bars are the 2SE of each analysis. These data have been corrected using a line-by-line measured oxygen isotope composition and correction for mass fractionation using 99Ru/101Ru = 0.745075 and the isotopic species. Spike-standard mix A and mix B are identical within analytical uncertainties to the gravimetric prediction (+14.9 ppm and +29.3 ppm, respectively).