An extraction method for nitrogen isotope measurement of ammonium in a low-concentration environment
International audience Abstract. Ammonia (NH3) participates in the nucleation and growth of aerosols and thus plays a major role in atmospheric transparency, pollution, health, and climate-related issues. Understanding its emission sources through nitrogen stable isotopes is therefore a major focus...
Published in: | Atmospheric Measurement Techniques |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2023
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Subjects: | |
Online Access: | https://hal.science/hal-04310338 https://hal.science/hal-04310338/document https://hal.science/hal-04310338/file/Lamothe%20et%20al.%20-%202023%20-%20An%20extraction%20method%20for%20nitrogen%20isotope%20measurem.pdf https://doi.org/10.5194/amt-16-4015-2023 |
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Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
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language |
English |
topic |
Stable isotope Ammonia Ice core Solid phase extraction [CHIM.ANAL]Chemical Sciences/Analytical chemistry [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
spellingShingle |
Stable isotope Ammonia Ice core Solid phase extraction [CHIM.ANAL]Chemical Sciences/Analytical chemistry [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology Lamothe, Alexis Savarino, Joel Ginot, Patrick Soussaintjean, Lison Gautier, Elsa Akers, Pete, D Caillon, Nicolas Erbland, Joseph An extraction method for nitrogen isotope measurement of ammonium in a low-concentration environment |
topic_facet |
Stable isotope Ammonia Ice core Solid phase extraction [CHIM.ANAL]Chemical Sciences/Analytical chemistry [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology |
description |
International audience Abstract. Ammonia (NH3) participates in the nucleation and growth of aerosols and thus plays a major role in atmospheric transparency, pollution, health, and climate-related issues. Understanding its emission sources through nitrogen stable isotopes is therefore a major focus of current work to mitigate the adverse effects of aerosol formation. Since ice cores can preserve the past chemical composition of the atmosphere for centuries, they are a top tool of choice for understanding past NH3 emissions through ammonium (NH4+), the form of NH3 archived in ice. However, the remote or high-altitude sites where glaciers and ice sheets are typically localized have relatively low fluxes of atmospheric NH4+ deposition, which makes ice core samples very sensitive to laboratory NH3 contamination. As a result, accurate techniques for identifying and tracking NH3 emissions through concentration and isotopic measurements are highly sought to constrain uncertainties in NH3 emission inventories and atmospheric reactivity unknowns. Here, we describe a solid-phase extraction method for NH4+ samples of low concentration that limits external contamination and produces precise isotopic results. By limiting NH3atm exposure with a scavenging fume hood and concentrating the targeted NH4+ through ion exchange resin, we successfully achieve isotopic analysis of 50 nmol NH4+ samples with a 0.6 ‰ standard deviation. This extraction method is applied to an alpine glacier ice core from Col du Dôme, Mont Blanc, where we successfully demonstrate the analytical approach through the analysis of two replicate 8 m water equivalent ice cores representing 4 years of accumulation with a reproducibility of ±2.1 ‰. Applying this methodology to other ice cores in alpine and polar environments will open new opportunities for understanding past changes in NH3 emissions and atmospheric chemistry. |
author2 |
Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) Climate and Environmental Physics Bern (CEP) Physikalisches Institut Bern Universität Bern / University of Bern (UNIBE)-Universität Bern / University of Bern (UNIBE) Trinity College Dublin Grenoble University Foundation (FUGA) Ice Memory foundation |
format |
Article in Journal/Newspaper |
author |
Lamothe, Alexis Savarino, Joel Ginot, Patrick Soussaintjean, Lison Gautier, Elsa Akers, Pete, D Caillon, Nicolas Erbland, Joseph |
author_facet |
Lamothe, Alexis Savarino, Joel Ginot, Patrick Soussaintjean, Lison Gautier, Elsa Akers, Pete, D Caillon, Nicolas Erbland, Joseph |
author_sort |
Lamothe, Alexis |
title |
An extraction method for nitrogen isotope measurement of ammonium in a low-concentration environment |
title_short |
An extraction method for nitrogen isotope measurement of ammonium in a low-concentration environment |
title_full |
An extraction method for nitrogen isotope measurement of ammonium in a low-concentration environment |
title_fullStr |
An extraction method for nitrogen isotope measurement of ammonium in a low-concentration environment |
title_full_unstemmed |
An extraction method for nitrogen isotope measurement of ammonium in a low-concentration environment |
title_sort |
extraction method for nitrogen isotope measurement of ammonium in a low-concentration environment |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-04310338 https://hal.science/hal-04310338/document https://hal.science/hal-04310338/file/Lamothe%20et%20al.%20-%202023%20-%20An%20extraction%20method%20for%20nitrogen%20isotope%20measurem.pdf https://doi.org/10.5194/amt-16-4015-2023 |
long_lat |
ENVELOPE(69.468,69.468,-49.461,-49.461) |
geographic |
Mont Blanc |
geographic_facet |
Mont Blanc |
genre |
ice core |
genre_facet |
ice core |
op_source |
ISSN: 1867-1381 EISSN: 1867-8548 Atmospheric Measurement Techniques https://hal.science/hal-04310338 Atmospheric Measurement Techniques, 2023, 16 (17), pp.4015-4030. ⟨10.5194/amt-16-4015-2023⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/amt-16-4015-2023 hal-04310338 https://hal.science/hal-04310338 https://hal.science/hal-04310338/document https://hal.science/hal-04310338/file/Lamothe%20et%20al.%20-%202023%20-%20An%20extraction%20method%20for%20nitrogen%20isotope%20measurem.pdf doi:10.5194/amt-16-4015-2023 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/amt-16-4015-2023 |
container_title |
Atmospheric Measurement Techniques |
container_volume |
16 |
container_issue |
17 |
container_start_page |
4015 |
op_container_end_page |
4030 |
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1789966908904177664 |
spelling |
ftccsdartic:oai:HAL:hal-04310338v1 2024-02-04T10:01:12+01:00 An extraction method for nitrogen isotope measurement of ammonium in a low-concentration environment Lamothe, Alexis Savarino, Joel Ginot, Patrick Soussaintjean, Lison Gautier, Elsa Akers, Pete, D Caillon, Nicolas Erbland, Joseph Institut des Géosciences de l’Environnement (IGE) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) Université Grenoble Alpes (UGA) Climate and Environmental Physics Bern (CEP) Physikalisches Institut Bern Universität Bern / University of Bern (UNIBE)-Universität Bern / University of Bern (UNIBE) Trinity College Dublin Grenoble University Foundation (FUGA) Ice Memory foundation 2023-09-06 https://hal.science/hal-04310338 https://hal.science/hal-04310338/document https://hal.science/hal-04310338/file/Lamothe%20et%20al.%20-%202023%20-%20An%20extraction%20method%20for%20nitrogen%20isotope%20measurem.pdf https://doi.org/10.5194/amt-16-4015-2023 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/amt-16-4015-2023 hal-04310338 https://hal.science/hal-04310338 https://hal.science/hal-04310338/document https://hal.science/hal-04310338/file/Lamothe%20et%20al.%20-%202023%20-%20An%20extraction%20method%20for%20nitrogen%20isotope%20measurem.pdf doi:10.5194/amt-16-4015-2023 info:eu-repo/semantics/OpenAccess ISSN: 1867-1381 EISSN: 1867-8548 Atmospheric Measurement Techniques https://hal.science/hal-04310338 Atmospheric Measurement Techniques, 2023, 16 (17), pp.4015-4030. ⟨10.5194/amt-16-4015-2023⟩ Stable isotope Ammonia Ice core Solid phase extraction [CHIM.ANAL]Chemical Sciences/Analytical chemistry [SDU.STU.GL]Sciences of the Universe [physics]/Earth Sciences/Glaciology info:eu-repo/semantics/article Journal articles 2023 ftccsdartic https://doi.org/10.5194/amt-16-4015-2023 2024-01-06T23:27:58Z International audience Abstract. Ammonia (NH3) participates in the nucleation and growth of aerosols and thus plays a major role in atmospheric transparency, pollution, health, and climate-related issues. Understanding its emission sources through nitrogen stable isotopes is therefore a major focus of current work to mitigate the adverse effects of aerosol formation. Since ice cores can preserve the past chemical composition of the atmosphere for centuries, they are a top tool of choice for understanding past NH3 emissions through ammonium (NH4+), the form of NH3 archived in ice. However, the remote or high-altitude sites where glaciers and ice sheets are typically localized have relatively low fluxes of atmospheric NH4+ deposition, which makes ice core samples very sensitive to laboratory NH3 contamination. As a result, accurate techniques for identifying and tracking NH3 emissions through concentration and isotopic measurements are highly sought to constrain uncertainties in NH3 emission inventories and atmospheric reactivity unknowns. Here, we describe a solid-phase extraction method for NH4+ samples of low concentration that limits external contamination and produces precise isotopic results. By limiting NH3atm exposure with a scavenging fume hood and concentrating the targeted NH4+ through ion exchange resin, we successfully achieve isotopic analysis of 50 nmol NH4+ samples with a 0.6 ‰ standard deviation. This extraction method is applied to an alpine glacier ice core from Col du Dôme, Mont Blanc, where we successfully demonstrate the analytical approach through the analysis of two replicate 8 m water equivalent ice cores representing 4 years of accumulation with a reproducibility of ±2.1 ‰. Applying this methodology to other ice cores in alpine and polar environments will open new opportunities for understanding past changes in NH3 emissions and atmospheric chemistry. Article in Journal/Newspaper ice core Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Mont Blanc ENVELOPE(69.468,69.468,-49.461,-49.461) Atmospheric Measurement Techniques 16 17 4015 4030 |