Site-specific isotopic analysis of N2O by QC laser spectroscopy: improvement, validation and dissemination

• Unité de recherche: COST
• Numéro de projet: C11.0051
• Titre du projet anglais: Site-specific isotopic analysis of N2O by QC laser spectroscopy: improvement, validation and dissemination

Mots-clé (Anglais)

Nitrous oxide (N2O); isotopomers; N2O isotopomer analyser; quantum cascade laser absorption spectroscopy (QCLAS)

Programme de recherche (Anglais)

COST-Action ES0806 - Stable Isotopes in Biosphere-Atmosphere-Earth System Research (SIBAE)

Description succincte (Anglais)

See abstract

Autres indications (Anglais)

Full name of research-institution/enterprise: Eidg. Materialprüfungs- und Forschungsanstalt EMPA Laboratory for Air Poolution & Environmental Technology Head Emission & Isotopes Group

Partenaires et organisations internationales (Anglais)

AT, BE, CH, DE, DK, EL, ES, FI, FR, HR, IL, IT, LU, NL, PL, PT, RS, SE, SI, SK, UK

Résumé des résultats (Abstract) (Anglais)

This project fosters the dissemination of N2O isotopomer analysis by strengthening our confidence in new laser technologies and by providing information on the potential and limitations of laser spectroscopy and IRMS for N2O isotopomer analysis. In particular, the performance of Quantum Cascade Absorption Spectroscopy (QCLAS) for high precision N2O isotopomer analysis at variable concentrations was improved by implementing continuous wave lasers, by providing N2O calibration gases covering the full range of relevant ƒÔ15NƒÑ and ƒÔ15NƒÒ values, and by inter-comparison measurements between QCLAS and IRMS.

Références bases de données (Anglais)

Swiss Database: COST-DB of the State Secretariat for Education and Research Hallwylstrasse 4 CH-3003 Berne, Switzerland Tel. [phone] Swiss Project-Number: C11.0051