FTIR photoacoustic trace gas detection
| Autor: | G. I. Hansen, A. S. Loftsdottir, Sigurdur Jakobsson, Ari Olafsson |
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| Rok vydání: | 1999 |
| Předmět: | |
| Zdroj: | Proceedings of the 10th international conference on photoacoustic and photothermal phenomena. |
| DOI: | 10.1063/1.58047 |
| Popis: | A new design of a multipass photoacoustic cell intended for FTIR measurements is reported. In spite of the intracell reflections the wall signal is negligible. Comparison with transmission measurements using a fundamental band of COS show a sensitivity equivalent to a 3 m transmission cell. Detection limit for COS is estimated 0.1 ppm corresponding to αmin=10−5/cm. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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