Spectrophotometric system for simultaneous flow-through measurements of dissolved inorganic carbon, pH and CO₂ fugacity

摘要

Provided is a flow-through CO2 system for simultaneously measuring surface seawater pH, carbon dioxide fugacity (fCO2), and total dissolved inorganic carbon (DIC). All measurements are based on spectrophotometric determinations of solution pH at multiple wavelengths using sulfonephthalein indicators.