Other (carbonates, minerals, porewaters)

For analysis of soil, tissue and plant samples see EA-IRMS.

Sample Requirements for Carbonate Isotopes

Analysis Amount Precision
δ13C 1 mg CaCO3 2σ = 0.1 ‰ VPDB
δ18O 1 mg CaCO3 2σ = 0.2 ‰ VSMOW
87Sr/86Sr

>10 µg Sr (~10 mg CaCO3)

 = 0.00002

​View more information about carbonate isotope samples.

Sample Requirements for Isotope Analysis in Other Minerals

Analysis Amount Precision
δ37Cl 3 mg Cl σ = 0.1 ‰ SMOC
δ81Br 3 mg Br σ = 0.1 ‰ SMOB
87Sr/86Sr >10 µg Sr  = 0.00002

​View more information about other mineral samples.

Sample Requirements for Isotopes in Soils and Porewaters

Analysis Amount Precision
δ37Cl 3 mg Cl σ = 0.1 ‰ SMOC
δ81Br 3 mg Br σ = 0.1 ‰ SMOB
87Sr/86Sr >10 µg Sr  = 0.00002

View more information about halogen isotopes in soil and porewater samples.

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