During the development of the ALGi Polarograph, systematic errors were identified in common oxygen and hydrogen gas measurements. The ALGi Polarograph maintains set sample temperature, correctly predicts dissolved gas based on altitude compensation and salinity correction. Our cooled, computer-controlled LED light source provides calibrated irradiance up to 6000 μmol photons m-2 sec-1 PAR. Consideration of these variables has allowed us to provide the most quantitative Pt/AgCl electrode-based system currently on the market.
ALGiSENSE Software allows for unprecedented experimental design, including programmable lighting intensity and timing, making gas exchange experiments from anaerobic photobiological H2 evolution to automated photosynthesis vs. irradiance curves a snap. In addition, stored probe calibration data combined with user input of relevant sample data like chlorophyll, cell counts, volume, and salinity delivers immediate dissolved gas and gas exchange rates in the desired user-defined units.