The use of potassium hydroxide (KOH) solution as a suitable approach to isolate plastics ingested by marine organisms.
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van Werven, Bernike
van Oyenc, Albert
Bravo Rebolledo, Elisa L.
van Franeker, Jan A.
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In studies of plastic ingestion by marine wildlife, visual separation of plastic particles from gastrointestinal tracts or their dietary content can be challenging. Earlier studies have used solutions to dissolve organic materials leaving synthetic particles unaffected. However, insufficient tests have been conducted to ensure that different categories of consumer products partly degraded in the environment and/or in gastrointestinal tracts were not affected. In this study 63 synthetic materials and 11 other dietary items and non-plastic marine debris were tested. Irrespective of shape or preceding environmental history, most polymers resisted potassium hydroxide (KOH) solution, with the exceptions of cellulose acetate from cigarette filters, some biodegradable plastics and a single polyethylene sheet. Exposure of hard diet components and other marine debris showed variable results. In conclusion, the results confirm that usage of KOH solutions can be a useful approach in gener.....
JournalMarine Pollution Bulletin
Sustainable Development Goals (SDG)14.1
Maturity LevelTRL 9 Actual system "mission proven" through successful mission operations (ground or space)
Best Practice TypeManual (incl. handbook, guide, cookbook etc)
CitationKühn, S.; van Werven, B.; van Oyenc, A.; Meijboom, A.; Bravo Rebolledo, E.L. and van Franeker, J.A. (2017) The use of potassium hydroxide (KOH) solution as a suitable approach to isolate plastics ingested by marine organisms. Marine Pollution Bulletin, 115, pp.86-90. DOI: http://dx.doi.org/10.1016/j.marpolbul.2016.11.034
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