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Raman Laser Spectrometer: Application to$ ^{12}C/^{13}$C Isotope Identification in $CH_{4}$ and $CO_{2}$ Greenhouse Gases
| Content Provider | MDPI |
|---|---|
| Author | Magdalena, Aguiló Francesc, Díaz Vitkin, Vladimir Polishchuk, Anton Chubchenko, Ian Popov, Evgeniy Grigorenko, Konstantin Kharitonov, Artem Davtian, Arsen Kovalev, Anton Kurikova, Valeria Camy, Patrice Loiko, Pavel Mateos, Xavier |
| Copyright Year | 2020 |
| Description | A compact Raman laser gas spectrometer is developed. It comprises a high-power green laser at 532.123 nm as an excitation source and a specially designed gas cell with an internal volume of less than 0.6 cm3 that can withstand gas pressures up to 100 atm. The resolution of the spectrometer is ~1 cm−1. The Raman spectra of chemically pure isotopically enriched carbon dioxide (12CO2, 13CO2) and methane (12CH4, 13CH4) gases are studied. The expected limit of detection (LOD) is less than 100 ppm for the isotopologues of CO2 and less than 25 ppm for those of CH4 (at a gas pressure of 50 atm.), making the developed spectrometer promising for studying the sources of emissions of greenhouse gases by resolving their isotopologue composition. We also show the suitability of the spectrometer for Raman spectroscopy of human exhalation. |
| Starting Page | 7473 |
| e-ISSN | 20763417 |
| DOI | 10.3390/app10217473 |
| Journal | Applied Sciences |
| Issue Number | 21 |
| Volume Number | 10 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-10-24 |
| Access Restriction | Open |
| Subject Keyword | Applied Sciences Spectroscopy Raman Laser Spectrometer Carbon Isotopes Greenhouse Gases Carbon Dioxide Methane Human Exhalation |
| Content Type | Text |
| Resource Type | Article |
