Uncertainties in Calibration of an Optical Spectrometer for Measuring Isotope Ratios in Methane : ACS Measurement Science Au
The stable isotope ratios of carbon (δ13C(CH4)) and hydrogen (δ2H(CH4)) in methane (CH4) from atmospheric air samples provide a tracer that can help distinguish the relative contribution of emission sources. These can be continuously measured at atmospheric monitoring stations by optical isotope ratio spectrometer (OIRS) instruments, providing data that is complementary to isotope ratio mass spect
