The results are repeatable for all measurements. The combustion and the extraction are complete and efficient in all cases.  It is possible to determine individually the concentration of Total Carbon, Total Inorganic Carbon and Total Organic Carbon in soil samples.

The sample preparation should be done very carefully, to avoid possible contamination of the detector from the hydrochloric acid.  A halogen trap and a nylon reagent in the dust filter should be used to trap the contamination and halogen gas.