Author, as appears in the article.: Vitkin, Vladimir; Polishchuk, Anton; Chubchenko, Ian; Popov, Evgeniy; Grigorenko, Konstantin; Kharitonov, Artem; Davtian, Arsen; Kovalev, Anton; Kurikova, Valeria; Camy, Patrice; Loiko, Pavel; Aguilo, Magdalena; Diaz, Francesc; Mateos, Xavier;

Department: Química Física i Inorgànica

e-ISSN: 2076-3417

URV's Author/s: Aguiló Díaz, Magdalena

Keywords: Spectrum Spectroscopy Ratio Raman laser spectrometer N-2 Methane Human exhalation Greenhouse gases Carbon-dioxide Carbon isotopes Carbon dioxide Breath (ch4)-c-13

Abstract: Featured Application The Developed Raman Laser Gas Spectrometer is Suitable for Detection of Carbon Isotopologues of Methane and Carbon Dioxide in Human Exhalation. 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 cm(3) that can withstand gas pressures up to 100 atm. The resolution of the spectrometer is similar to 1 cm(-1). The Raman spectra of chemically pure isotopically enriched carbon dioxide ((CO2)-C-12, (CO2)-C-13) and methane ((CH4)-C-12, (CH4)-C-13) 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.

Thematic Areas: Química Process chemistry and technology Physics, applied Materials science, multidisciplinary Materials science (miscellaneous) Materials science (all) Materiais Instrumentation General materials science General engineering Fluid flow and transfer processes Engineering, multidisciplinary Engineering (miscellaneous) Engineering (all) Engenharias ii Engenharias i Computer science applications Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências agrárias i Ciência de alimentos Chemistry, multidisciplinary Biodiversidade Astronomia / física

licence for use: https://creativecommons.org/licenses/by/3.0/es/

Author's mail: magdalena.aguilo@urv.cat

Author identifier: 0000-0001-6130-9579

Record's date: 2023-02-19

Papper version: info:eu-repo/semantics/publishedVersion

Link to the original source: https://www.mdpi.com/2076-3417/10/21/7473

Licence document URL: http://repositori.urv.cat/ca/proteccio-de-dades/

Papper original source: Applied Sciences-Basel. 10 (21):

APA: Vitkin, Vladimir; Polishchuk, Anton; Chubchenko, Ian; Popov, Evgeniy; Grigorenko, Konstantin; Kharitonov, Artem; Davtian, Arsen; Kovalev, Anton; Kurik (2020). Raman Laser Spectrometer: Application to C-12/C-13 Isotope Identification in CH4 and CO2 Greenhouse Gases. Applied Sciences-Basel, 10(21), -. DOI: 10.3390/app10217473

Article's DOI: 10.3390/app10217473

Entity: Universitat Rovira i Virgili

Journal publication year: 2020

Publication Type: Journal Publications