Instrument: CO2 Coulometer

Instrument Short Name: CO2 coulometer
(http://vocab.nerc.ac.uk/collection/L05/current/LAB12)
Instrument Description:

A CO2 coulometer semi-automatically controls the sample handling and extraction of CO2 from seawater samples. Samples are acidified and the CO2 gas is bubbled into a titration cell where CO2 is converted to hydroxyethylcarbonic acid which is then automatically titrated with a coulometrically-generated base to a colorimetric endpoint.

PI supplied instrument name: UIC CO2 coulometer detector
Dataset-specific description

DIC was measured by a gas extraction/coulometric technique (see Bates et al., 1996a,b for details), using a SOMMA (Single-Operator Multi-Metabolic Analyzer) to control the pipetting and extraction of seawater samples and a UIC CO2 coulometer detector.