Comparison of δ < sup > 13 < /sup > C analyses of individual foraminifer (Orbulina universa) shells by secondary ion mass spectrometry and gas source mass spectrometry

CONCLUSIONS: The noted Δ13 CSIMS-GSMS values are most likely due to matrix effects causing sample-standard mismatch for SIMS analyses but may also be a combination of other factors such as SIMS measurement of chemically bound water. The volume of material analyzed via SIMS is ~105 times smaller than that analyzed by GSMS; hence, the extent to which these Δ13 CSIMS-GSMS values represent differences in analyte or instrument factors remains unclear.PMID:38124172 | DOI:10.1002/rcm.9658

Source: Rapid Communications in Mass Spectrometry : RCM - December 21, 2023 Category: Chemistry Authors: Jody B Wycech Daniel Clay Kelly Reinhard Kozdon Akizumi Ishida Kouki Kitajima Howard J Spero John W Valley Source Type: research