Journal cover Journal topic
Ocean Science An interactive open-access journal of the European Geosciences Union
Journal topic

Journal metrics

Journal metrics

  • IF value: 2.289 IF 2.289
  • IF 5-year value: 2.756 IF 5-year
    2.756
  • CiteScore value: 2.76 CiteScore
    2.76
  • SNIP value: 1.050 SNIP 1.050
  • SJR value: 1.554 SJR 1.554
  • IPP value: 2.65 IPP 2.65
  • h5-index value: 30 h5-index 30
  • Scimago H <br class='hide-on-tablet hide-on-mobile'>index value: 41 Scimago H
    index 41
Discussion papers
https://doi.org/10.5194/os-2019-5
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/os-2019-5
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 18 Feb 2019

Research article | 18 Feb 2019

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Ocean Science (OS).

Segmented flow coil equilibrator coupled to a Proton Transfer Reaction Mass Spectrometer for measurements of a broad range of Volatile Organic Compounds in seawater

Charel Wohl1,2, David Capelle3, Anna Jones4, William T. Sturges2, Phillip D. Nightingale1,2, Brent G. T. Else5, and Mingxi Yang1 Charel Wohl et al.
  • 1Plymouth Marine Laboratory, Plymouth, PL1 3DH, United Kingdom
  • 2School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom
  • 3Center for Earth Observation Science, University of Manitoba, Winnipeg, Manitoba, Canada
  • 4British Antarctic Survey, Cambridge, High Cross, Madingley Road, CB3 0ET, United Kingdom
  • 5Department of Geography, University of Calgary, Calgary, T2N 1N4, Canada

Abstract. Here we present a technique that utilises a segmented flow coil equilibrator coupled to a Proton Transfer Reaction-Mass Spectrometer to measure a broad range of dissolved organic gases. Due to its unique design composed of a segmented flow and a headspace-water separator, the equilibrator is highly efficient for gas exchange and has a fast response time (under 1 min). The system allows for both discrete and continuous measurements of volatile organic compounds in seawater due to its ease of changing sample intake and low sample water flow (100 cm3 min-1). The equilibrator setup is both relatively inexpensive and compact. Hence it can be easily reproduced and installed on a variety of oceanic platforms, particularly where space is limited. As a result of its smooth and unreactive surfaces, the segmented flow coil equilibrator is expected to be less sensitive to biofouling and easier to clean than membrane-based equilibration systems. The equilibrator fully equilibrates for gases that are similarly soluble or more soluble than toluene. The method has been successfully deployed in the Canadian Arctic. Here, some example data of underway surface water and Niskin bottle measurements in the sea ice zone are presented to illustrate the efficacy of this measurement system.

Charel Wohl et al.
Interactive discussion
Status: open (until 15 Apr 2019)
Status: open (until 15 Apr 2019)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
[Subscribe to comment alert] Printer-friendly Version - Printer-friendly version Supplement - Supplement
Charel Wohl et al.
Charel Wohl et al.
Viewed  
Total article views: 120 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
91 27 2 120 1 1
  • HTML: 91
  • PDF: 27
  • XML: 2
  • Total: 120
  • BibTeX: 1
  • EndNote: 1
Views and downloads (calculated since 18 Feb 2019)
Cumulative views and downloads (calculated since 18 Feb 2019)
Viewed (geographical distribution)  
Total article views: 76 (including HTML, PDF, and XML) Thereof 75 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 
Cited  
Saved  
No saved metrics found.
Discussed  
No discussed metrics found.
Latest update: 19 Mar 2019
Publications Copernicus
Download
Short summary
In this paper we present a gas equilibrator that can be used to extract gases continuously or in discrete samples from seawater. The head space is analysed by a commercially available Proton Transfer Reaction - Mass Spectrometer. This allows measurement of a broad range of dissolved gases up to a very high solubility in seawater. The main advantage of this equilibrator lies in it's unique design and ease of reproducibility.
In this paper we present a gas equilibrator that can be used to extract gases continuously or in...
Citation