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

• Research unit: COST
• Project number: C11.0051

Key words (English)

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

Research programs (English)

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

Short description (English)

See abstract

Further information (English)

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

Partners and International Organizations (English)

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

Abstract (English)

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.

References in databases (English)

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