Technical Note: Comparison of storage strategies of sea surface microlayer samples

Schneider-Zapp, Klaus, Salter, Matthew, Mann, Paul and Upstill-Goddard, Robert (2013) Technical Note: Comparison of storage strategies of sea surface microlayer samples. Biogeosciences, 10 (7). pp. 4927-4936. ISSN 1726-4170

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Official URL: http://dx.doi.org/10.5194/bg-10-4927-2013

Abstract

The sea surface microlayer (SML) is an important biogeochemical system whose physico-chemical analysis often necessitates some degree of sample storage. However, many SML components degrade with time so the development of optimal storage protocols is paramount. We here briefly review some commonly used treatment and storage protocols. Using freshwater and saline SML samples from a river estuary, we investigated temporal changes in surfactant activity (SA) and the absorbance and fluorescence of chromophoric dissolved organic matter (CDOM) over four weeks, following selected sample treatment and storage protocols. Some variability in the effectiveness of individual protocols most likely reflects sample provenance. None of the various protocols examined performed any better than dark storage at 4 °C without pre-treatment. We therefore recommend storing samples refrigerated in the dark.

Item Type: Article
Subjects: C500 Microbiology
F100 Chemistry
F700 Ocean Sciences
F800 Physical and Terrestrial Geographical and Environmental Sciences
Department: Faculties > Engineering and Environment > Geography
Depositing User: Paul Mann
Date Deposited: 29 Jul 2013 14:10
Last Modified: 30 Jan 2016 05:54
URI: http://nrl.northumbria.ac.uk/id/eprint/13303

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