Instrument: Elemental Analyzer
Instruments that quantify carbon, nitrogen and sometimes other elements by combusting the sample at very high temperature and assaying the resulting gaseous oxides. Usually used for samples including organic material.
DIC was determined using a high precision (0.05%CV) small-volume DIC analyzer (~1.5 ml sample size) using an infrared-based instrument (AIRICA; Marianda Co., Germany; Bates et al., 2012) with replicate samples analyzed using a VINDTA 3C system at BIOS.
The VINDTA 3C (Versatile INstrument for the Determination of Total inorganic carbon and titration Alkalinity) combines the proven VINDTA alkalinity titration concept with a simplified extraction unit for coulometric dissolved inorganic carbon (DIC) measurement.