phosphate in oligotrophic seawater
To study nutrient dynamics and cycling in oligotrophic open ocean environments, continuous measurements of nanomolar nitrate, nitrite, and phosphate are valuable. However, such studies are usually impeded by the detection limits of conventional nutrient-sensors and analyzers. Here, we developed a sh...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.391.8968 2023-05-15T17:31:52+02:00 phosphate in oligotrophic seawater Qian P. Li Dennis A. Hansell Jia-zhong Zhang The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.8968 http://yyy.rsmas.miami.edu/groups/biogeochem/Hansell pdfs/70 Hansell.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.8968 http://yyy.rsmas.miami.edu/groups/biogeochem/Hansell pdfs/70 Hansell.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://yyy.rsmas.miami.edu/groups/biogeochem/Hansell pdfs/70 Hansell.pdf text ftciteseerx 2016-01-08T02:17:41Z To study nutrient dynamics and cycling in oligotrophic open ocean environments, continuous measurements of nanomolar nitrate, nitrite, and phosphate are valuable. However, such studies are usually impeded by the detection limits of conventional nutrient-sensors and analyzers. Here, we developed a shipboard deployable underway system for simultaneously monitoring nitrate plus nitrite and phosphate at nanomolar concentrations by the coupling of an optimized flow injection analytical system with two long-path liquid waveguide capillary cells (LWCC). The detection limits are ~2 nM for nitrate plus nitrite and ~1.5 nM for phosphate, respectively. Results from realtime surveys of waters over the west Florida continental shelf and the oligotrophic Sargasso Sea are presented. This system has also been successfully used to analyze more than 1000 discrete seawater samples manually during 2 cruises in the North Atlantic. Text North Atlantic Unknown |
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ftciteseerx |
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English |
description |
To study nutrient dynamics and cycling in oligotrophic open ocean environments, continuous measurements of nanomolar nitrate, nitrite, and phosphate are valuable. However, such studies are usually impeded by the detection limits of conventional nutrient-sensors and analyzers. Here, we developed a shipboard deployable underway system for simultaneously monitoring nitrate plus nitrite and phosphate at nanomolar concentrations by the coupling of an optimized flow injection analytical system with two long-path liquid waveguide capillary cells (LWCC). The detection limits are ~2 nM for nitrate plus nitrite and ~1.5 nM for phosphate, respectively. Results from realtime surveys of waters over the west Florida continental shelf and the oligotrophic Sargasso Sea are presented. This system has also been successfully used to analyze more than 1000 discrete seawater samples manually during 2 cruises in the North Atlantic. |
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The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Qian P. Li Dennis A. Hansell Jia-zhong Zhang |
spellingShingle |
Qian P. Li Dennis A. Hansell Jia-zhong Zhang phosphate in oligotrophic seawater |
author_facet |
Qian P. Li Dennis A. Hansell Jia-zhong Zhang |
author_sort |
Qian P. Li |
title |
phosphate in oligotrophic seawater |
title_short |
phosphate in oligotrophic seawater |
title_full |
phosphate in oligotrophic seawater |
title_fullStr |
phosphate in oligotrophic seawater |
title_full_unstemmed |
phosphate in oligotrophic seawater |
title_sort |
phosphate in oligotrophic seawater |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.8968 http://yyy.rsmas.miami.edu/groups/biogeochem/Hansell pdfs/70 Hansell.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
http://yyy.rsmas.miami.edu/groups/biogeochem/Hansell pdfs/70 Hansell.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.391.8968 http://yyy.rsmas.miami.edu/groups/biogeochem/Hansell pdfs/70 Hansell.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766129684866662400 |