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Sample Weight: 0.5 g


Carbonate carbon (inorganic carbon) in geologic materials is determined as carbon dioxide by combustion. The sample is treated with dilute perchloric acid to release inorganic carbon as CO2 in a closed system. The CO2 can then be measured by infrared detection.

The reporting limit range for Carbonate Carbon is 0.01% to 14%.

Analytical Performance

Data will be deemed acceptable if recovery of Carbonate Carbon is ±15% at five times the Lower Limit of Determination (LOD) and the calculated Relative Standard Deviation (RSD) of duplicate samples is no greater than 15%.

Project Contact

Jaime Azain
Phone: 303-236-9376
Central Mineral and Environmental Resources Science Center

Mineral Resources Program Science Priority

The use of firm, trade, and brand names is for identification purposes only and does not constitute endorsement by the U.S. government.

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