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Development and Validation of an Efficient Method for Processing Microplastics in Biota Samples
Environmental toxicology and chemistry, 2019-07, Vol.38 (7), p.1400-1408
Yu, Zimin
Peng, Bo
Liu, Liang‐Ying
Wong, Charles S.
Zeng, Eddy Y.
2019
Volltextzugriff (PDF)
Details
Autor(en) / Beteiligte
Yu, Zimin
Peng, Bo
Liu, Liang‐Ying
Wong, Charles S.
Zeng, Eddy Y.
Titel
Development and Validation of an Efficient Method for Processing Microplastics in Biota Samples
Ist Teil von
Environmental toxicology and chemistry, 2019-07, Vol.38 (7), p.1400-1408
Ort / Verlag
United States: Blackwell Publishing Ltd
Erscheinungsjahr
2019
Quelle
Wiley Online Library Journals Frontfile Complete
Beschreibungen/Notizen
The impacts of microplastics on aquatic ecosystems and biota are gaining attention globally. Although microplastics have been widely detected in biota, there currently are few standardized detection and identification methods. The present study developed a novel one‐step digestion method which was evaluated with mussel and fish samples. This method employed nitric acid and hydrogen peroxide (HNO3:H2O2 = 4:1 by volume) as digestion reagents, which completely digested biota samples <5 g weight within 30 min at 50 °C. A density separation step was subsequently used to remove organic residues as necessary. The efficiency and suitability of this method were tested by spiking microplastics of 7 different types and of various sizes (1000, 900, 675, 300, 250, and 150 μm) into mussel and gastrointestinal tracts of fish. The recoveries of microplastics ranged from 90 to 100%. No significant changes in weight, surface area, and particle size (t test, p > 0.05) were observed for all tested polymers. Fourier transform infrared spectral analyses demonstrated that the method did not degrade any of the polymers except for polyethylene terephthalate. The method was demonstrated with mussel and fish samples collected from the Pearl River delta, south China, and was able to recover microplastics effectively. Overall, the present method is time‐saving and easy to operate, with low procedural cross‐contamination. The properties of microplastics recovered by the present method remained largely intact, greatly benefiting subsequent qualitative and quantitative analyses. Environ Toxicol Chem 2019;38:1400–1408. © 2019 SETAC Development and validation of an efficient method for processing microplastics in biota samples
Sprache
Englisch
Identifikatoren
ISSN: 0730-7268
eISSN: 1552-8618
DOI: 10.1002/etc.4416
Titel-ID: cdi_proquest_journals_2248438294
Format
–
Schlagworte
Animals
,
Aquatic biota
,
Aquatic ecosystems
,
Biodegradation, Environmental
,
Biota
,
Bivalvia - metabolism
,
Contamination
,
Digestion
,
Environmental changes
,
Environmental Monitoring - methods
,
Fish
,
Fishes - metabolism
,
Fourier transforms
,
Gastrointestinal Tract - metabolism
,
Hydrogen peroxide
,
Hydrogen Peroxide - chemistry
,
Identification methods
,
Infrared analysis
,
Microplastics
,
Microplastics - chemistry
,
Microplastics - metabolism
,
Mollusks
,
Nitric acid
,
Nitric Acid - chemistry
,
Particle Size
,
Polyethylene
,
Polyethylene terephthalate
,
Polymers
,
Qualitative analysis
,
Reagents
,
Rivers
,
Water Pollutants, Chemical - chemistry
,
Water Pollutants, Chemical - metabolism
,
Weight
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