Abstract
The δ114/110Cd values of thirty‐four environmental and geological reference materials, including rocks, sediments, soils and biological samples, were determined on a Neptune Plus MC‐ICP‐MS instrument using a 111Cd‐113Cd double spike technique. An intermediate measurement precision of better than ± 0.074‰ (2s) was achieved with different reference materials (RMs) of highly variable matrices and Cd contents. The uncertainty of δ114/110Cd values was assessed by calculating the 95% confidence interval of the results from this study and the literature using Student's t‐test. Our measurements of nine previously analysed RMs yielded δ114/110Cd values that were indistinguishable from previous results. New reference values for the thirty‐four geological and biological RMs are reported here. The comprehensive data set for these RMs provides guidelines for quality assurance and inter‐laboratory comparison for Cd isotope determination. The large range of δ114/110Cd values in rock (−0.001 to +0.287‰) and biological RMs (−0.806 to +0.142‰) suggests that Cd isotope ratio measurement results are a useful tool to study biogeochemical processes.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
