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An improved method for the determination of dissolved nitric oxide (NO) in seawater samples
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lutterbeck, Hannah Bange, Hermann Werner |
| Copyright Year | 2015 |
| Abstract | Nitric oxide (NO) is a short-lived intermediate of the oceanic nitrogen cycle, however, due to its high reactivity, measurements of dissolved NO in seawater are rare. Here we present an improved method to determine NO concentrations in discrete seawater samples. The set-up of our system consisted of a chemiluminescence NO analyser connected to a stripping unit. The limit of detection for our method was 5 pmol NO in aqueous solution which translates into 0.25 nmol L−1 when using a 20 mL seawater sample volume. Our method was applied to measure high resolution depth profiles of dissolved NO during a cruise to the eastern tropical South Pacific Ocean. Our method is fast and comparably easy to handle thus it opens the door for deciphering the distribution of NO in the ocean and it facilitates laboratory studies on NO pathways. |
| Starting Page | 937 |
| Ending Page | 946 |
| Page Count | 10 |
| File Format | PDF HTM / HTML |
| Volume Number | 11 |
| Alternate Webpage(s) | https://www.ocean-sci.net/11/937/2015/os-11-937-2015.pdf |
| Alternate Webpage(s) | http://oceanrep.geomar.de/28952/1/os-11-937-2015.pdf |
| Alternate Webpage(s) | https://doi.org/10.5194/os-11-937-2015 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
