Autor según el artículo: 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;

Departamento: Química Física i Inorgànica

e-ISSN: 2076-3417

Autor/es de la URV: Aguiló Díaz, Magdalena

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

Resumen: 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.

Áreas temáticas: 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

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

Direcció de correo del autor: magdalena.aguilo@urv.cat

Identificador del autor: 0000-0001-6130-9579

Fecha de alta del registro: 2023-02-19

Versión del articulo depositado: info:eu-repo/semantics/publishedVersion

Enlace a la fuente original: https://www.mdpi.com/2076-3417/10/21/7473

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Applied Sciences-Basel. 10 (21):

Referencia de l'ítem segons les normes 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

DOI del artículo: 10.3390/app10217473

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2020

Tipo de publicación: Journal Publications