A. Marty et al., A GAS-PHASE CHROMATOGRAPHY METHOD FOR DETERMINATION OF LOW DISSOLVED CO2 CONCENTRATION AND OR CO2 SOLUBILITY IN MICROBIAL CULTURE MEDIA/, Biotechnology techniques, 9(11), 1995, pp. 787-792
CO2 concentration in aqueous samples was derived from determination of
the CO2 content in the gas phase at equilibrium with the liquid by ga
s chromatography. This technique was used to measure low dissolved CO2
concentrations, down to 10(-6) mol/L, and CO2 solubility in microbial
culture media The method gave results with an accuracy within 10%, an
d appeared thus as reliable and sensitive. It could be considered as a
valuable tool to study CO2 mass transfer in bio-processes.