High-precision analysis of doubly-substituted "clumped" methane isotopologues 13CH3D and 12CH2D2 with QCL absorption spectroscopy

Scientist Empa: Ivan Prokhorov (Postdoc)

In recent years, a new tool for studying the origin and fate of methane in the environment, by measuring the abundance of doubly substituted (clumped) isotopologues, has been established. In particular the availability of two independent temperature proxies, Δ13CH3D and Δ12CH2D2, provides new key information allowing to better understand the processes of methane formation and thermal equilibration.

Within the SNF funded project we  develop and validate a quantum cascade laser absorption spectrometer (QCLAS) to analyze the abundance of 13CH3D and 12CH2D2 in methane (CH4).

To learn more about ongoing projects please click here.
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