Molecular Laser Spectroscopy as a Tool forGas Analysis Applications

[摘要] We have used the traceable infrared laser spectrometric amount fraction measurement (TILSAM) method to perform absolute concentration measurements of molecular species using three laser spectroscopic techniques. We report results performed by tunable diode laser absorption spectroscopy (TDLAS), quantum cascade laser absorption spectroscopy (QCLAS), and cavity ring down spectroscopy (CRDS), all based on theTILSAMmethodology. The measured results of the different spectroscopic techniques are in agreement with respective gravimetric values, showing that theTILSAMmethod is feasible with all different techniques. We emphasize the data quality objectives given by traceability issues and uncertainty analyses.

[学科分类] 光谱学