Academic Journal
Global Research Alliance N₂O chamber methodology guidelines: Recommendations for air sample collection, storage, and analysis
| العنوان: | Global Research Alliance N₂O chamber methodology guidelines: Recommendations for air sample collection, storage, and analysis |
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| المؤلفون: | Harvey, MJ, Sperlich, P, Clough, Timothy, Kelliher, FM, McGeough, KL, Martin, RJ, Moss, R |
| بيانات النشر: | Wiley on behalf of American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America |
| سنة النشر: | 2020 |
| المجموعة: | Lincoln University (New Zealand): Lincoln U Research Archive |
| مصطلحات موضوعية: | fluxes, gas chromatography (GC), N₂O emissions, soil, ANZSRC::410402 Environmental assessment and monitoring, ANZSRC::370203 Greenhouse gas inventories and fluxes, ANZSRC::300403 Agronomy, ANZSRC::31 Biological sciences, ANZSRC::37 Earth sciences, ANZSRC::41 Environmental sciences, Nitrous Oxide, Calibration, Chromatography, Gas |
| جغرافية الموضوع: | United States |
| الوصف: | Certain aspects in the collection, handling, storage, and subsequent analysis of discrete air samples from non-steady-state flux chambers are critical to generating accurate and unbiased estimates of nitrous oxide (N₂O) fluxes. The focus of this paper is on air sample collection and storage in small vials (<12 ml) primarily for gas chromatography (GC) analysis. Sample integrity is assured through following simple procedures including storage under pressure and analysis within a few months of collection. Concurrent storage of standards in an identical manner to samples is recommended and allows the storage period to be reliably extended. In the laboratory, an autosampler is typically used in batch analysis of ∼200 sequentially analyzed samples by GC with an electron capture detector (ECD). Some comparisons are given between GC and alternatives including optical N₂O detectors that are increasingly being used for high-precision N₂O measurement. The importance of calibration and traceability of gas standards is discussed, where high-quality standards ensure the most accurate assessment of N₂O concentration and comparability between laboratories. The calibration allows a consistent and best estimate of flux to be derived. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | pp.1110-1125; Print-Electronic |
| اللغة: | English |
| تدمد: | 1537-2537 0047-2425 |
| Relation: | The original publication is available from Wiley on behalf of American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America - https://doi.org/10.1002/jeq2.20129 - http://dx.doi.org/10.1002/jeq2.20129; Journal of Environmental Quality; https://doi.org/10.1002/jeq2.20129; https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=elements_prod&SrcAuth=WosAPI&KeyUT=WOS:000615919000004&DestLinkType=FullRecord&DestApp=WOS_CPL; 33016464 (pubmed); https://hdl.handle.net/10182/14466 |
| DOI: | 10.1002/jeq2.20129 |
| الاتاحة: | https://hdl.handle.net/10182/14466 https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=elements_prod&SrcAuth=WosAPI&KeyUT=WOS:000615919000004&DestLinkType=FullRecord&DestApp=WOS_CPL https://doi.org/10.1002/jeq2.20129 |
| Rights: | © 2020 The Authors. Journal of Environmental Quality published by Wiley Periodicals LLC on behalf of American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America. ; Attribution ; https://creativecommons.org/licenses/by/4.0/ |
| رقم الانضمام: | edsbas.218D363A |
| قاعدة البيانات: | BASE |
| تدمد: | 15372537 00472425 |
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| DOI: | 10.1002/jeq2.20129 |