Chicago Stable Isotope Ratio facility
isotopic standards
C, N, O, H, S standards
C, N, O, H, S standards
Disclaimer: Last updated 29 January 2012. Be sure to actually check the CIAAW website (and links--most current), IAEA website, IAEA stable isotope site, or NIST website (not Chrome friendly) for the latest values! This is a variation of the CIAAW site's presentation. Special thanks to Dominic Colosi for layout and sorting.
alas, can not sort tables when using Sites
Blue-highlighted standards are those available in the lab as of the last update (sort on ref).
Red-highlighted standards are out-of-date values.
Red and Blue lines are UofC and some Yale house standards, not commercially available.
Updates listed, large differences highlighted or listed separately.