Purity Analysis of Gases Used in the Preparation of Reference Gas Standards Using a Versatile OPO-Based CRDS Spectrometer

<div>Purity analysis for methane in the matrix gases N<sub>2</sub>, O<sub>2</sub>, and whole air from different suppliers. In addition, the measurement of two CH<sub>4</sub> reference standards (10 and 50 nmol/mol in N<sub>2</sub>) is shown.</div>

Journal of Spectroscopy

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Figure 3

Figure 3: Purity Analysis of Gases Used in the Preparation of Reference Gas Standards Using a Versatile OPO-Based CRDS Spectrometer 