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. Author manuscript; available in PMC: 2019 Apr 1.
Published in final edited form as: Appl Radiat Isot. 2017 Jul 27;134:23–31. doi: 10.1016/j.apradiso.2017.07.050

Fig. 3.

Fig. 3.

Schematic showing the metrological traceability relationships of characterized thorium isotope amount ratio values and the 229Th molality value for the reference material (RM).