Doubly-substituted isotopologues of abiotic methane synthesized in the laboratory

We use the rare 12CH2D2 and 13CH3D isotopologue of CH4 as a tracer of abioic origin for methane. We have synthesized abiotic methane in the laboratory. Subsequently, we have determined the methane isotope compositions. Our isotope measurements include singly and doubly substituted isotopologues.我们以甲烷（CH₄）的稀有同位素取代物（isotopologue）12CH₂D₂与13CH₃D作为甲烷非生物成因的示踪剂。我们在实验室中合成了非生物成因甲烷，随后测定了该甲烷的同位素组成。本次同位素测量涵盖了单取代与双取代的同位素取代物。