We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Identification and quantification of polystyrene microplastics in marine sediments facing a river mouth through NMR spectroscopy
AI summary Read the abstract
Researchers explored the use of nuclear magnetic resonance spectroscopy to identify and quantify polystyrene microplastics in marine sediments near a river mouth. The study demonstrated that NMR can serve as a complementary analytical tool for microplastic detection, offering advantages in polymer identification accuracy compared to some conventional methods.
Accurate identification and quantification of microplastic pollution in marine sediments are crucial for assessing their ecological impact. In this study, we explored the potential of Nuclear Magnetic Resonance (NMR) spectroscopy as an analytical tool for the analysis of microplastics in complex environmental matrices such as marine sediments. Two common plastic polymers, polystyrene (PS) and acrylonitrile butadiene styrene (ABS), were investigated. The marine sediments facing the Tiber River mouth (Italy) were collected according to a bathymetric gradient. Results demonstrated the successful detection and quantification of PS in all sediment samples (within a range of 12.3-64.6 μg/L), while no ABS significant signals were found. An increment trend with depth was observed in the PS signal, relatable to its physicochemical properties and the Tiber River plume hydrodynamic characteristics. The NMR's non-destructive nature and minimal sample preparation represent a promising avenue for standardizing protocols to assess the microplastic distribution and impact in marine sediments.
More Papers Like This
High-resolution NMR spectroscopic approaches to quantify PET microplastics pollution in environmental freshwater samples
AI summary Read the abstract
Researchers developed a workflow using high-resolution nuclear magnetic resonance spectroscopy to detect and quantify polyethylene terephthalate microplastic contamination in environmental water samples. The NMR-based approach enables unambiguous identification and precise measurement of PET particles in surface waters. The study offers a promising new analytical tool for monitoring microplastic pollution that complements existing detection methods.
Unlocking the potential of NMR spectroscopy for precise and efficient quantification of microplastics
AI summary Read the abstract
Researchers demonstrated that nuclear magnetic resonance (NMR) spectroscopy can precisely identify and quantify six common plastic polymer types — including polystyrene and PVC — at concentrations as low as 0.2 micrograms per milliliter, outperforming traditional methods. This advance offers a faster, more accurate tool for measuring microplastic contamination in environmental samples.
M. Sc
AI summary Read the abstract
Researchers proposed a workflow for examining microplastic contamination in environmental surface water samples using high-resolution nuclear magnetic resonance (NMR) spectroscopy, enabling simultaneous unambiguous polymer identification and precise quantification at atomic resolution independent of particle size. The NMR-based approach offered advantages over conventional spectroscopy methods by providing structural-level chemical characterization without size-based detection thresholds.
M. Sc
AI summary Read the abstract
Researchers developed a workflow using high-resolution nuclear magnetic resonance (NMR) spectroscopy to identify and quantify microplastics in environmental surface water samples, enabling unambiguous polymer identification and precise mass quantification at atomic resolution independent of particle size.
Overcoming the challenge of quantifying aged microplastic by qNMR spectroscopy
AI summary Read the abstract
Researchers evaluated quantitative nuclear magnetic resonance spectroscopy for analyzing environmentally aged microplastics made of polystyrene, polyvinyl chloride, and polyethylene terephthalate. The study found that UV exposure and elevated temperatures during aging altered the spectral properties of these polymers, and developed approaches to overcome the quantification challenges posed by environmental weathering.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.