Evaluating the Effect of Chemical Digestion Treatments on Polystyrene Microplastics: Recommended Updates to Chemical Digestion Protocols Article Swipe
Alexandra M. Gulizia
,
Eve Brodie
,
Renee Daumuller
,
Sarah B. Bloom
,
Tayla C. Corbett
,
Marina Santana
,
Cherie A. Motti
,
George Vamvounis
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1002/macp.202100485
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.1002/macp.202100485
Establishing the toxicity and exposure consequences of microplastics (MPs) on marine organisms relies on the nondestructive isolation of plastics from biological matrices. MPs are commonly extracted from these matrices by chemical digestion using alkali (e.g., potassium hydroxide (KOH) and sodium hydroxide (NaOH)), oxidative (e.g., hydrogen peroxide (H 2 O 2 )) and/or acidic (e.g., nitric acid (HNO 3 )) reagents. Although these digestion conditions can be highly effective for MP extraction, they can also react with the plastics. This can attribute an inaccurate representation of plastic contamination by altering MP visual characteristics (size, shape, color), thereby impeding identification and potentially returning erroneous numbers of ingested particles. In this study, the degradative impacts are assessed of the routinely applied digestion reagents (i) KOH, (ii) NaOH, (iii) H 2 O 2 , and (iv) HNO 3 on polystyrene (PS) based MPs sized between 200 µm and 5 mm. Degradation of the PS MPs is evaluated using FT‐IR, gel permeation chromatography, NMR, photoluminescence spectroscopy, and microscopy. These studies reveal HNO 3 to be the most destructive for PS MPs, while the alkali and oxidative reagents result in negligible changes in plastic properties. These results are recommended to be used as a guideline to update current protocols to ensure the nondestructive treatment of MPs.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1002/macp.202100485
- https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/macp.202100485
- OA Status
- hybrid
- Cited By
- 74
- References
- 41
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4220915256
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4220915256Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1002/macp.202100485Digital Object Identifier
- Title
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Evaluating the Effect of Chemical Digestion Treatments on Polystyrene Microplastics: Recommended Updates to Chemical Digestion ProtocolsWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-03-08Full publication date if available
- Authors
-
Alexandra M. Gulizia, Eve Brodie, Renee Daumuller, Sarah B. Bloom, Tayla C. Corbett, Marina Santana, Cherie A. Motti, George VamvounisList of authors in order
- Landing page
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https://doi.org/10.1002/macp.202100485Publisher landing page
- PDF URL
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https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/macp.202100485Direct link to full text PDF
- Open access
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YesWhether a free full text is available
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hybridOpen access status per OpenAlex
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https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/macp.202100485Direct OA link when available
- Concepts
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Chemistry, Microplastics, Polystyrene, Gel permeation chromatography, Potassium hydroxide, Reagent, Nitric acid, Sodium hydroxide, Hydrogen peroxide, Digestion (alchemy), Nuclear chemistry, Chromatography, Environmental chemistry, Organic chemistry, PolymerTop concepts (fields/topics) attached by OpenAlex
- Cited by
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74Total citation count in OpenAlex
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2025: 26, 2024: 30, 2023: 12, 2022: 6Per-year citation counts (last 5 years)
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41Number of works referenced by this work
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10Other works algorithmically related by OpenAlex
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