Carbon Dioxide and Water Vapor Isotope Monitor

SIMULTANEOUS CO2 AND H2O ISOTOPES

 

CO2 and H2O isotope monitoring instrument

 

Aerodyne’s simultaneous carbon dioxide and water vapor isotope monitor is a dual laser instrument which provides the excellent sensitivity and time response (0.1 seconds) of our standard CO2 isotope monitor but also measures the isotopic abundances of H218O and HOD. 

The measurement precisions for a one second measurement at typical ambient atmospheric mixing ratios of CO2 and water vapor are:
 

H2O HOD/H2O 0.3 per mil
  H218O/H2O 0.1 per mil
CO2 13CO2/CO2 0.1 per mil
  CO18O/CO2 0.1 per mil