Validation of density separation for the rapid recovery of microplastics from sediment

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DOI

  • Brian Quinn, Univ West Scotland, University of West Scotland, Sch Sci & Sport, IBEHR
  • ,
  • Fionn Murphy
  • Ciaran Ewins, Univ West Scotland, University of West Scotland, Sch Sci & Sport, IBEHR

Several density separation techniques using numerous brine solutions have been developed for the separation of microplastics from sediment. The aim of this study was to validate the use of various brine solutions in a relatively rapid, reproducible, low cost single stage method that can deliver consistently high recoveries for different microplastic polymers <1 mm appropriate for monitoring programmes. The recovery of environmentally relevant microplastics ( 200- 400 mu m and 800- 1000 mu m) from post- consumer products was tested against tap water and brine solutions of varying density including sodium chloride ( NaCl), sodium bromide ( NaBr), sodium iodide ( NaI) and zinc bromide ( ZnBr2). As expected a general trend of increasing microplastic recovery with increasing solution density was observed, with NaI and ZnBr2 having significantly ( p

Original languageEnglish
JournalAnalytical Methods
Volume9
Issue9
Pages (from-to)1491-1498
Number of pages8
ISSN1759-9660
DOIs
Publication statusPublished - 7 Mar 2017
Externally publishedYes

    Research areas

  • SMALL-PLASTIC DEBRIS, QUANTITATIVE-ANALYSIS, SPATIAL-DISTRIBUTION, MARINE-ENVIRONMENT, BEACH SEDIMENTS, POLLUTION, CHINA, WATER, PARTICLES, SEA

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