Identification and quantification of microplastics using Nile Red staining
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Title
- Identification and quantification of microplastics using Nile Red staining
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Author(s)
- Shim, Won Joon; Song, Young Kyoung; Hong, Sang Hee; Jang, Mi
- KIOST Author(s)
- Shim, Won Joon(심원준); Hong, Sang Hee(홍상희); Jang, Mi(장미)
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Alternative Author(s)
- 심원준; 송영경; 홍상희; 장미
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Publication Year
- 2016-12
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Abstract
- We investigated the applicability of Nile Red (NR), a fluorescent dye, for microplastic analysis, and determined the optimal staining conditions. Five mg/L NR solution in n-hexane effectively stained plastics, and they were easily recognized in green fluorescence. The NR staining method was successfully applied to micro-sized polyethylene, polypropylene, polystyrene, polycarbonate, polyurethane, and poly(ethylene-vinyl acetate), except for polyvinylchloride, polyamide and polyester. The recovery rate of polyethylene (100-300 pm) spiked to pretreated natural sand was 98% in the NR stating method, which was not significantly (p < 0.05) different with FT-IR identification. The NR staining method was suitable for discriminating fragmented polypropylene particles from large numbers of sand particles in laboratory weathering test samples. The method is straightforward and quick for identifying and quantifying polymer particles in the laboratory controlled samples. Further studies, however, are necessary to investigate the application of NR staining to field samples with organic remnants. (C) 2016 Elsevier Ltd. All rights reserved.
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ISSN
- 0025-326X
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/1374
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DOI
- 10.1016/j.marpolbul.2016.10.049
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Bibliographic Citation
- MARINE POLLUTION BULLETIN, v.113, no.1-2, pp.469 - 476, 2016
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Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
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Keywords
- Nile Red; staining; identification; microplastics
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Type
- Article
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Language
- English
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Document Type
- Article
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