Use of Interfaced Gas Chromatography-Mass Spectrometry for Detection of Concurrent Mineralization and Denitrification in Soil
| Autor: | D. D. Focht, J. Letey, N. Valoras |
|---|---|
| Rok vydání: | 1980 |
| Předmět: |
Environmental Engineering
Denitrification chemistry Environmental chemistry Soil organic matter chemistry.chemical_element Mineralization (soil science) Management Monitoring Policy and Law Gas chromatography–mass spectrometry Pollution Waste Management and Disposal Nitrogen Water Science and Technology |
| Zdroj: | Journal of Environmental Quality. 9:218-223 |
| ISSN: | 0047-2425 |
| DOI: | 10.2134/jeq1980.00472425000900020011x |
| Popis: | A method using an interfaced gas chromatograph-mass spectrometer (GC-MS) is described for measuring the amount of N₂O and N₂ derived during denitrification from tagged ¹⁵NO₃⁻ and from ¹⁴NO₃⁻, the latter of which is produced during mineralization of soil organic matter. More mineralization and less denitrification was noted with the respective order related to air-filled pore content: 10%, 5%, 0 (saturated). Denitrification measured directly from the cumulative emissions of N₂O and N₂ was considerably underestimated by comparison to measuring denitrification by loss of ¹⁵NO₃⁻. |
| Databáze: | OpenAIRE |
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