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Identification of polystyrene microplastics in the presence of algae Chlorella sp. by means of SIMS and XPS spectroscopy
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Researchers demonstrated the use of time-of-flight secondary ion mass spectrometry (ToF-SIMS) and X-ray photoelectron spectroscopy (XPS) for identifying polystyrene microplastics in the presence of Chlorella sp. algae, addressing the challenge of distinguishing synthetic polymers from organic material in environmentally realistic conditions.
Presence of microplastics is responsible for a large part of today’s environmental pollution. At the same time, identification of the MPs in the real environmental conditions (such as presence of organic material, namely algae, in water) is still highly challenging. In this contribution, we demonstrate the application of ToF SIMS and XPS spectroscopy methods for evaluation of the presence of polystyrene microplastics in the absence and in the presence of algae Chlorella sp.
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Researchers used pyrolysis-gas chromatography-mass spectrometry to identify polystyrene nanoplastics in environmental samples containing natural organic matter, developing methods to distinguish nanoplastic signals from complex organic background matrices in water.
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Researchers applied time-of-flight secondary ion mass spectrometry (ToF-SIMS) to characterize microplastics in soil samples, demonstrating the technique's ability to identify polymer types and surface chemical properties at high spatial resolution. The study proposes ToF-SIMS as a valuable complementary tool for microplastic detection in terrestrial environments where current analytical methods remain inconsistent.
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Surface Chemical Analysis of Plastic Materials by X‐Ray Photoelectron Spectroscopy: Understanding Weathering, Fragmentation and Contaminant Uptake in Marine Environments
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This review assesses the application of X-ray Photoelectron Spectroscopy (XPS) as a surface characterisation tool for studying plastic fragmentation, weathering, and hazardous contaminant adsorption in marine environments, arguing that surface-level chemical analysis is essential for predicting plastic degradation behaviour. The authors evaluate the current state of XPS applications for understanding the complex surface chemistry that governs how micro- and nanoplastics interact with environmental pollutants.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.