Non-dispersive UV Absorption Spectroscopy: A Promising New Approach for in-situ Detection of Sulfur Dioxide
A new type of instrument for in-situ detection of volcanic sulfur dioxide is presented on the basis of non-dispersive UV absorption spectroscopy. It is a promising alternative to presently used compact and low-cost SO2 monitoring techniques, over which it has a series of advantages, including an inh...
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ftpubman:oai:pure.mpg.de:item_3080869 2023-08-20T04:10:19+02:00 Non-dispersive UV Absorption Spectroscopy: A Promising New Approach for in-situ Detection of Sulfur Dioxide Tirpitz, J. Pohler, D. Bobrowski, N. Christenson, B. Rudiger, J. Schmitt, S. Platt, U. 2019 http://hdl.handle.net/21.11116/0000-0003-EA9B-7 eng eng info:eu-repo/semantics/altIdentifier/doi/10.3389/feart.2019.00026 http://hdl.handle.net/21.11116/0000-0003-EA9B-7 Frontiers in Earth Science info:eu-repo/semantics/article 2019 ftpubman https://doi.org/10.3389/feart.2019.00026 2023-08-01T23:56:19Z A new type of instrument for in-situ detection of volcanic sulfur dioxide is presented on the basis of non-dispersive UV absorption spectroscopy. It is a promising alternative to presently used compact and low-cost SO2 monitoring techniques, over which it has a series of advantages, including an inherent calibration, fast response times (< 2 s to reach 90 % of the applied concentration), a measurement range spanning about 5 orders of magnitude and small, well-known cross sensitivities to other gases. Compactness, cost-efficiency and detection limit (< 1 ppm, few ppb under favorable conditions) are comparable to other presently used in-situ instruments. Our instrument prototype has been extensively tested in comparison studies with established methods. In autumn 2015, diverse volcanic applications were investigated such as fumarole sampling, proximal plume measurements and airborne measurements several kilometers downwind from the vent on Mt. Etna and White Island. General capabilities and limitations of the measurement principle are discussed, considering different instrument configurations and future applications. Article in Journal/Newspaper White Island Max Planck Society: MPG.PuRe White Island ENVELOPE(48.583,48.583,-66.733,-66.733) Frontiers in Earth Science 7 |
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Open Polar |
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Max Planck Society: MPG.PuRe |
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ftpubman |
language |
English |
description |
A new type of instrument for in-situ detection of volcanic sulfur dioxide is presented on the basis of non-dispersive UV absorption spectroscopy. It is a promising alternative to presently used compact and low-cost SO2 monitoring techniques, over which it has a series of advantages, including an inherent calibration, fast response times (< 2 s to reach 90 % of the applied concentration), a measurement range spanning about 5 orders of magnitude and small, well-known cross sensitivities to other gases. Compactness, cost-efficiency and detection limit (< 1 ppm, few ppb under favorable conditions) are comparable to other presently used in-situ instruments. Our instrument prototype has been extensively tested in comparison studies with established methods. In autumn 2015, diverse volcanic applications were investigated such as fumarole sampling, proximal plume measurements and airborne measurements several kilometers downwind from the vent on Mt. Etna and White Island. General capabilities and limitations of the measurement principle are discussed, considering different instrument configurations and future applications. |
format |
Article in Journal/Newspaper |
author |
Tirpitz, J. Pohler, D. Bobrowski, N. Christenson, B. Rudiger, J. Schmitt, S. Platt, U. |
spellingShingle |
Tirpitz, J. Pohler, D. Bobrowski, N. Christenson, B. Rudiger, J. Schmitt, S. Platt, U. Non-dispersive UV Absorption Spectroscopy: A Promising New Approach for in-situ Detection of Sulfur Dioxide |
author_facet |
Tirpitz, J. Pohler, D. Bobrowski, N. Christenson, B. Rudiger, J. Schmitt, S. Platt, U. |
author_sort |
Tirpitz, J. |
title |
Non-dispersive UV Absorption Spectroscopy: A Promising New Approach for in-situ Detection of Sulfur Dioxide |
title_short |
Non-dispersive UV Absorption Spectroscopy: A Promising New Approach for in-situ Detection of Sulfur Dioxide |
title_full |
Non-dispersive UV Absorption Spectroscopy: A Promising New Approach for in-situ Detection of Sulfur Dioxide |
title_fullStr |
Non-dispersive UV Absorption Spectroscopy: A Promising New Approach for in-situ Detection of Sulfur Dioxide |
title_full_unstemmed |
Non-dispersive UV Absorption Spectroscopy: A Promising New Approach for in-situ Detection of Sulfur Dioxide |
title_sort |
non-dispersive uv absorption spectroscopy: a promising new approach for in-situ detection of sulfur dioxide |
publishDate |
2019 |
url |
http://hdl.handle.net/21.11116/0000-0003-EA9B-7 |
long_lat |
ENVELOPE(48.583,48.583,-66.733,-66.733) |
geographic |
White Island |
geographic_facet |
White Island |
genre |
White Island |
genre_facet |
White Island |
op_source |
Frontiers in Earth Science |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.3389/feart.2019.00026 http://hdl.handle.net/21.11116/0000-0003-EA9B-7 |
op_doi |
https://doi.org/10.3389/feart.2019.00026 |
container_title |
Frontiers in Earth Science |
container_volume |
7 |
_version_ |
1774724407459053568 |