We are currently measuring carbon dioxide CO2 in the near infrared using a multigas system, and we are looking for the best methodologies of methane CH4 measurements, especially in rice crops. We are interested to receive the best recommendations from active researchers with experience in this topic.
Hi Gustavo,
To determine methane with an optical method an elegant solution is to oxidize it fully (100% efficiency of oxidation) to carbon dioxide and then use exactly the same optical monitor as you use for CO2 itself.
This allows for the same sensitivity for methane quantification as the one for CO2 depending on the IR monitor used.
Added is a paper which summarizes the methods and catalysts used for the catalytic oxidation of methane.
Success,
Frank Veroustraete (PhD)
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