| Autor: |
Young-Jae Jeong, Bo-Seong Seo, Nuri Baek, Jin-Hyeob Kwak, Sang-Mo Lee, Hyun-Jin Park, Woo-Jung Choi |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Frontiers in Environmental Science, Vol 10 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2296-665X |
| DOI: |
10.3389/fenvs.2022.877055 |
| Popis: |
Nitrogen (N) isotope ratios (δ15N) of multiple N species including ammonium (NH4+), nitrate (NO3−), dissolved organic N (DON), and total dissolved N (TDN) can serve as indicators of the sources of wet N deposition. However, methods for sequential analysis of these multiple N species are not well developed. In this study, methods for the determination of δ15N of these multiple N species were proposed through a traditional distillation method for NH4+ and NO3−, direct evaporation for TDN, and an isotope mass balance equation for δ15N-DON. A series of experiments were conducted 1) to find evaporation conditions including pH (2.0 mg N L−1 assuming that 200 ml of sample is used for distillation). |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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