دورية أكاديمية
Characterisation of gas reference materials for underpinning atmospheric measurements of stable isotopes of nitrous oxide
| العنوان: | Characterisation of gas reference materials for underpinning atmospheric measurements of stable isotopes of nitrous oxide |
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| المؤلفون: | R. E. Hill-Pearce, A. Hillier, E. Mussell Webber, K. Charoenpornpukdee, S. O'Doherty, J. Mohn, C. Zellweger, D. R. Worton, P. J. Brewer |
| المصدر: | Atmospheric Measurement Techniques, Vol 14, Pp 5447-5458 (2021) |
| بيانات النشر: | Copernicus Publications, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Environmental engineering LCC:Earthwork. Foundations |
| مصطلحات موضوعية: | Environmental engineering, TA170-171, Earthwork. Foundations, TA715-787 |
| الوصف: | The precise measurement of the amount fraction of atmospheric nitrous oxide (N2O) is required to understand global emission trends. Analysis of the site-specific stable isotopic composition of N2O provides a means to differentiate emission sources. The availability of accurate reference materials of known N2O amount fractions and isotopic composition is critical for achieving these goals. We present the development of nitrous oxide gas reference materials for underpinning measurements of atmospheric composition and isotope ratio. Uncertainties target the World Metrological Organisation Global Atmosphere Watch (WMO-GAW) compatibility goal of 0.1 nmol mol−1 and extended compatibility goal of 0.3 nmol mol−1, for atmospheric N2O measurements in an amount fraction range of 325–335 nmol mol−1. We also demonstrate the stability of amount fraction and isotope ratio of these reference materials and present a characterisation study of the cavity ring-down spectrometer used for analysis of the reference materials. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1867-1381 1867-8548 |
| Relation: | https://amt.copernicus.org/articles/14/5447/2021/amt-14-5447-2021.pdf; https://doaj.org/toc/1867-1381; https://doaj.org/toc/1867-8548 |
| DOI: | 10.5194/amt-14-5447-2021 |
| URL الوصول: | https://doaj.org/article/01b0bb776c3f4f319d54601a8a3b081d |
| رقم الأكسشن: | edsdoj.01b0bb776c3f4f319d54601a8a3b081d |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 18671381 18678548 |
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| DOI: | 10.5194/amt-14-5447-2021 |