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

<div>(a) Measurement of a 100 nmol/mol N<sub>2</sub>O standard, a cylinder of whole air, and a cylinder of nitrogen. (b) 10x magnification of (a) showing more clearly the presence of N<sub>2</sub>O in whole air.</div>

Journal of Spectroscopy

fig4

Figure 4

Figure 4: Purity Analysis of Gases Used in the Preparation of Reference Gas Standards Using a Versatile OPO-Based CRDS Spectrometer 