High‐precision Sr and Nd isotope characterization of BHVO‐2 reference material by thermal ionization mass spectrometry

Rationale Control over accuracy and precision in isotope geochemical analysis is highly necessary for reliable results. Use of reference materials Sr Nd geochemistry provides a means validating optimal sample preparation instrument configurations. Methods A comprehensive data set analyses BHVO‐2 material was obtained by thermal ionization mass spectrometry (TIMS). The intention to assist other researchers evaluating isotopic geological samples with similar chemical matrix. Results 87 Sr/ 86 ratios analyzed 88 replicas from 2015 the present provide an average value 0.703485 ± 0.000024. In turn, 143 Nd/ 144 62 show 0.512978 0.000012. high number here presented ensures reproducibility time non‐certified these two elements. Conclusions This TIMS basis validation analytical processes absence certified support correlation results between laboratories overall improvement interpretation geological, environmental archeological samples.