Below is a list of reference materials used at IsoLab.
- Carbonate δ13C δ18O
- Sulfate Δ17O
- Nitrate δ15N δ18O Δ17O
- Solid δ13C δ15N δ34S
- Water δD δ18O 17Oexcess
View a table of informal survey results conducted through IsoGeoChem to obtain reasonable estimates of δ15N and δ13C values for the NIST1547 Peach Leaves material:
View a table of all laboratories that have measured O2 gas from a compressed cylinder originating from Praxair in Seattle, Washington, the results they obtained, and information provided about their reference materials: