| Species | External Precision |
Sample Size | Sample Type | Method |
CO2 ( δ13C) |
0.019 (<0.03) |
>25 µg |
pure CaCO3 (sample size for bulk samples is up to their CaCO3 content) | DI MultiCarb |
CO2 ( δ18O) |
0.058 (<0.05) |
|||
CO2 ( δ13C) |
0.04 (<0.05) |
>10 µg | ||
CO2 ( δ18O) |
0.07 (<0.07) |
|||
CO2 ( δ13C) |
0.1 |
>2 µg | ||
CO2 ( δ18O) |
0.1 |
|||
CO2 ( δ18O) |
0.044 (<0.05) |
200 µl |
water | DI AquaPrep |
H2 ( δD) |
0.607 (<1.00) |
|||
H2 ( δD) |
0.480 (<0.5) |
0.2 µl | water | EA Chrome HD |
H2 ( δD) |
1.033 (<3.0) |
50 – 200 µg | solid matter | EA Pyrolysis |
CO ( δ18O) |
0.254 (<0.3) |
0.3 µl | water | EA-LAS Pyrolysis |
CO ( δ18O) |
0.286 (<0.3) |
50 – 200 µg |
solid matter | EA Pyrolysis |
CO2 ( δ13C) |
0.145 (<0.3) |
50 – 200 µg |
organic matter | EA Combustion |
N2 ( δ15N) |
0.067 (<0.3) |
|||
SO2 ( δ34S) |
0.173 (<0.4) |
50 – 200 µg |
solid matter | EA Combustion |
The numbers in the brackets in External Precision column are the GV IsoPrime performance specifications.
SF Bay 