C(CO2) Isotopic Analyzer

Field of research: Analysis, Experimentation

Institution: Christian-Albrechts University Kiel, Institute of Physical Chemistry (Department of Chemistry), Ocean Surface Chemistry / Reaction Kinetics
Contact: Prof. Dr. Gernot Friedrichs, Prof. Arne Körtzinger
Location: Ludewig-Meyn-Str. 8 & Max-Eyth-Str. 2


Cavity-ringdown spectroscopy (CRDS) based isotopic analyzer for monitoring the isotope ratio ??CO2/??CO2

Technical Data/ Features

  • Æ(?13C(CO2)) Å ±0.1ä (precision, 120 min averaging)
  • Æ(?13C(CO2)) Å ±0.2ä (accuracy), Æ(xCO2) Å ±50 ppb (precision, 1 min average), Æ(xCO2) Å ±0.5 ppm (accuracy)
  • Continuous gas flow of 20 sccm needed


  • Isotopic analysis of ambient and air/water equilibrated gaseous CO2 samples
  • Continuous field monitoring of ???C(CO2)
  • Simultaneous measurement of ???C(CO2 ), xCO2 xH2O, (and xO2)


Spectroscopy, Gas Analyser, CO2 Isotopes, Cavity Ringdown Spectroscopy