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A review of analytical techniques for quantifying microplastics in sediments

Citation

Hanvey, JS and Lewis, PJ and Lavers, JL and Crosbie, ND and Pozo, K and Clarke, BO, A review of analytical techniques for quantifying microplastics in sediments, Analytical Methods, 2017, (9) pp. 1369-1383. ISSN 1759-9660 (2016) [Refereed Article]

Copyright Statement

Copyright 2017 The Royal Society of Chemistry

DOI: doi:10.1039/c6ay02707e

Abstract

In this review the analytical techniques for measuring microplastics in sediment have been evaluated. Four primary areas of the analytical process have been identified that include (1) sampling, (2) extraction, (3) quantitation and (4) quality assurance/quality control (QAQC). Each of those sections have their own subject specific challenges and require further method development and harmonisation. The most common approach to extracting microplastics from sediments is density separation. Following extraction, visual counting with an optical microscope is the most common technique for quantifying microplastics; a technique that is labour intensive and prone to human error. Spectroscopy (FTIR; Raman) are the most commonly applied techniques for identifying polymers collected through visual sorting. Improvements and harmonisation on size fractions, sampling approaches, extraction protocols and units for reporting plastic abundance would aid comparison of data generated by different research teams. Further, we advocate the development of strong QAQC procedures to be adopted like other fields of analytical chemistry. Finally, inter-laboratory proficiency testing is recommended to give an indication of the variation and reliability in measurements reported in the scientific literature that may be under- or overestimations of environmental burdens.

Item Details

Item Type:Refereed Article
Keywords:marine debris, plastic pollution, sediment sampling methods
Research Division:Environmental Sciences
Research Group:Environmental Science and Management
Research Field:Conservation and Biodiversity
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Marine Flora, Fauna and Biodiversity
Author:Lavers, JL (Dr Jennifer Lavers)
ID Code:113972
Year Published:2016
Web of Science® Times Cited:2
Deposited By:Centre for Ecology and Biodiversity
Deposited On:2017-01-31
Last Modified:2017-11-08
Downloads:0

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