©2020 Biological and Chemical Oceanography Data Management Office.Funded by the U.S. National Science Foundation
©2020 Biological and Chemical Oceanography Data Management Office.A flow through system for the determination of the total alkalinity in seawater. Its general principle is based on open-cell single-point titration with spectrophotometric pH determination. It can be used for continuous monitoring during surface water applications as well as for discrete sample measurements.
| Dataset Name | PI-Supplied Description | PI-Supplied Name |
|---|---|---|
| Macrophytes' amelioration of seawater acidity: Water residence time and irradiance of Saccharina latissima from the Gulf of Maine in November 2018 | A defined amount of seawater is acidified by injection of a fixed amount of hydrochloric acid (HCl). After acidification the generated CO₂ in the sample is removed by means of a membrane based degassing unit resulting in a so-called open-cell titration. The subsequent pH determination is carried out by means of an indicator dye (Bromocresol green) and VIS absorption spectrometry. Together with salinity and temperature, the resulting pH is directly used for the calculation of total alkalinity. | CONTROS HydroFIA® TA |