Standards

13CV-PDB

18OV-SMOW

2HV-SMOW

34SV-CDT

15NAIR

USGS 24

−16.049‰

IAEA S-1

−0.30‰

IAEA N-2

20.3‰

EMA-P1

−27.85‰

(0.12‰)*

+20.99‰

(0.72‰)

−25.30‰

(5.10‰)

−3.01‰

(0.54‰)

EMA-P2

−28.19‰

(0.14‰)

+26.88‰

(1.88‰)

−87.80‰

(2.20‰)

−1.57‰

(0.19‰)