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Coupling single particle ICP-MS with field-flow fractionation for characterizing metal nanoparticles contained in nanoplastic colloids
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A combination of field-flow fractionation and single-particle ICP-MS was used to characterize composite particles containing metal nanoparticles in a polymer matrix, simulating what happens when plastic particles age in the environment and accumulate metals. This analytical approach helps reveal the complex chemical nature of weathered microplastics.
Composite particles containing metallic nanoparticles in a polymer matrix, which simulate environmentally-transformed nanoparticles, are effectively characterized by combining field-flow fractionation with single particle ICP-MS.
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Metal-tagged micro- and nanoplastic particles were used with single-particle ICP-MS to study transport and retention of plastic particles through saturated porous media, providing a sensitive method for tracking environmentally representative particles in soil.
Application of Single-Particle ICP-MS to Determine the Mass Distribution and Number Concentrations of Environmental Nanoparticles and Colloids
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Researchers applied single-particle ICP-MS to characterize elemental composition and size distributions of nanoparticles, colloids, and their aggregates in environmental samples. The study demonstrates that spICP-MS can effectively analyze homoaggregation and heteroaggregation of natural and anthropogenic nanoparticles including plastic-associated metal contaminants.
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Researchers combined single-particle ICP-MS and optofluidic force induction Raman spectroscopy to detect and characterize secondary micro- and nanoplastics generated during aging of larger plastic fragments, demonstrating that the combined approach can analyze particles across a wide size range.
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Researchers developed an innovative coupling of microfluidic systems with spectrometry to study nanoplastic and trace metal interactions under controlled flow conditions, examining how oxygenated surface functional groups on degraded plastic particles influence metal speciation and transport in aquatic matrices. The study demonstrated that nanoplastics with carboxylic surface groups formed under environmental degradation conditions can significantly alter trace metal behaviour, with implications for combined toxicity and metal cycling in natural waters.
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