Purification of carbon dioxide from N2O for mass-spectrometrical analysis of soil CO2

Autor:	Andrzej Dudziak, Stanisław Hałas
Rok vydání:	1990
Předmět:	chemistry.chemical_compound chemistry Environmental chemistry Soil water Carbon dioxide Thermal decomposition General Engineering chemistry.chemical_element Nitrous oxide Mass spectrometry Oxygen Copper Electrochemical reduction of carbon dioxide
Zdroj:	International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes. 41:909-911
ISSN:	0883-2889
DOI:	10.1016/0883-2889(90)90072-o
Popis:	A quick procedure for removing N2O from CO2 is described. The contaminant, nitrous oxide, is decomposed completely at a high temperature (690°C) within a few minutes, while the released oxygen is bound by hot copper into CuO. Carbon dioxide purified in this way is suitable for precise mass-spectrometrical determinations of its quantity and carbon isotope composition. It was shown that the presence of an N2O admixture in soil CO2 results in a shift of measured δ13C up to 2.3 per mil towards more negative values.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c084f93961ba23e78c2c84f5a7f05b0e https://doi.org/10.1016/0883-2889(90)90072-o Zobrazit plný text záznamu