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Papers
20 resultsShowing papers similar to Validated method for polystyrene nanoplastic separation in aqueous matrices by asymmetric-flow field flow fraction coupled to MALS and UV–Vis detectors
ClearA method for efficient separation of polystyrene nanoplastics and its application in natural freshwater
Researchers developed a method using asymmetrical flow field-flow fractionation (AF4) coupled with multiple detectors to efficiently separate and characterize polystyrene nanoplastics by particle size in freshwater environments, demonstrating its applicability for analysing nanoplastic environmental behaviour in natural freshwater samples.
In-house validation of AF4-MALS-UV for polystyrene nanoplastic analysis
Researchers validated an asymmetric flow field-flow fractionation method coupled with multi-angle light scattering and UV detection for simultaneously sizing and quantifying polystyrene nanoplastics from 20 to 200 nm, achieving greater than 90% recovery and detection limits of 15–33 µg/mL across a polydisperse nanoplastic mixture.
Separate determination of polystyrene nanoplastics and microplastics in water by membrane filtration and gel permeation chromatography-ultraviolet detection analysis
Researchers developed a practical laboratory method to separately measure polystyrene nanoplastics and microplastics in water samples using membrane filtration and a specialized chromatography technique. The method was validated in both environmental water and tap water, confirming the presence of nanoplastics through multiple analytical approaches. This represents an important step forward in the ability to accurately distinguish between different sizes of plastic pollution in drinking and environmental water.
New method for separating and online detecting polydisperse mixed nanoplastics
Researchers optimized an asymmetric flow field-flow fractionation method coupled with UV detection to separate and quantify mixed nanoplastics between 20 and 200 nm in a single run, achieving high recovery rates and low detection limits across multiple polymer types and real water sample conditions.
An effective solution to simultaneously analyze size, mass and number concentration of polydisperse nanoplastics in a biological matrix: asymmetrical flow field fractionation coupled with a diode array detector and multiangle light scattering
Researchers developed an asymmetrical flow field-flow fractionation method coupled with a diode array detector and multiangle light scattering to simultaneously measure the size, mass, and number concentration of polydisperse nanoplastics in biological matrices, providing a more accurate tool for assessing nanoplastic pollution levels.
Characterization of Nanoparticles in Drinking Water Using Field-Flow Fractionation Coupled with Multi-Angle Light Scattering and Inductively Coupled Plasma Mass Spectrometry
Researchers developed methods using field-flow fractionation coupled with multi-angle light scattering and mass spectrometry to characterize nanoparticles in drinking water. The study addresses the lack of standardized techniques for detecting submicrometer particles, including nanoplastics, highlighting the need for better analytical tools to monitor emerging water contaminants.
Matrix Overloading Effects on Size-Resolved Quantification of Low-Concentration Nanoplastics in Complex Environmental Matrices Using Asymmetric Flow Field-Flow Fractionation
Researchers developed a size-resolved method for quantifying nanoplastics in the 20-200 nm range in environmental water samples using asymmetric flow field-flow fractionation. The study identified important analytical artifacts from matrix overloading effects that can occur when measuring low-concentration nanoplastics in complex environmental samples, providing guidance for more accurate quantification methods.
An optimized multi-technique based analytical platform for identification, characterization and quantification of nanoplastics in water
Researchers developed an analytical platform combining flow fractionation, light scattering, and pyrolysis-GC/MS to simultaneously identify polymer type, measure particle size distribution, and quantify nanoplastics in water samples down to 0.01 ppm, filling a key gap in nanoplastic monitoring tools.
Matrix OverloadingEffects on Size-Resolved Quantificationof Low-Concentration Nanoplastics in Complex Environmental MatricesUsing Asymmetric Flow Field-Flow Fractionation
Researchers developed a size-resolved nanoplastic quantification method using asymmetric flow field-flow fractionation with on-channel preconcentration, identifying and characterizing matrix overloading effects that cause analytical artifacts when measuring nanoplastics in complex environmental water samples.
Detection of nanoplastics in food by asymmetric flow field-flow fractionation coupled to multi-angle light scattering: possibilities, challenges and analytical limitations
Researchers tested whether asymmetric flow field-flow fractionation coupled to light-scattering detection could identify nanoplastics in fish tissue, successfully detecting 100 nm polystyrene particles at a limit of 52 µg/g after enzymatic digestion, but found the method could not be directly transferred to polyethylene particles without further adjustment.
Particle Size and Pre-Treatment Effects on Polystyrene Microplastic Settlement in Water: Implications for Environmental Behavior and Ecotoxicological Tests
How polystyrene microplastics are prepared for lab tests — including shaking or ultrasonic treatment — significantly affects particle size distributions and thus experimental outcomes. Standardizing sample preparation is critical for producing reproducible and comparable microplastic research results.
High sensitivity in quantitative analysis of mixed-size polystyrene micro/nanoplastics in one step
Scientists developed a new method using filtration combined with surface-enhanced Raman spectroscopy to separate and identify mixed-size micro- and nanoplastics in a single step. The technique achieved detection limits as low as parts-per-billion concentration levels and was successfully tested in real-world tap water samples. Reliable methods for detecting nanoplastics in drinking water are crucial for understanding the extent of human exposure through water consumption.
IntegratingAF4 and Py-GC-MS for Combined Size-ResolvedPolymer-Compositional Analysis of Nanoplastics with Application toWastewater
Researchers developed a novel workflow for nanoplastic characterization in environmental water samples by integrating asymmetric flow field-flow fractionation with multiangle light scattering (AF4-MALS) and pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) in an offline combination. This approach enables simultaneous size-resolved and polymer-compositional analysis of nanoplastics in wastewater, addressing the lack of standardized methods for this challenging contaminant class.
Integrating AF4 and Py-GC-MS for Combined Size-Resolved Polymer-Compositional Analysis of Nanoplastics with Application to Wastewater
This study combined asymmetric flow field-flow fractionation with multiangle light scattering and pyrolysis-GC-MS in an offline workflow to simultaneously characterize nanoplastic size distribution (down to ~1 nm) and polymer composition in wastewater, offering a new standard-compatible approach for environmental nanoplastic analysis.
Trace analysis of polystyrene microplastics in natural waters
Researchers developed and evaluated analytical methods for trace-level quantification of polystyrene microplastics and nanoplastics in natural water samples, addressing key challenges in sensitivity and accuracy that limit realistic environmental risk assessment.
Effects of size and surface charge on the sedimentation of nanoplastics in freshwater
Researchers investigated how size and surface charge of polystyrene nanoplastics affect their sedimentation behavior in freshwater, finding that both properties significantly influence aggregation dynamics and settling rates, with implications for predicting nanoplastic fate in aquatic environments.
Asymmetrical flow field flow fractionation methods to characterize submicron particles: application to carbon-based aggregates and nanoplastics
Researchers developed and validated an asymmetrical flow field-flow fractionation (AF4) strategy capable of rapidly sizing and separating submicron particles — including nanoplastics — across the full colloidal range from 10 to 800 nm using a single programmed method with four high-resolution sub-fractionation windows.
Detection and Identification of Non-Labeled Polystyrene Nanoplastics in Rodent Tissues Using Asymmetric Flow Field-Flow Fractionation (AF4) Combined with UV–Vis, Dynamic Light Scattering (DLS) Detectors and Offline Pyrolysis–GCMS (Pyro-GCMS)
Researchers developed a multi-platform analytical method combining field-flow fractionation, light scattering, and pyrolysis-based mass spectrometry to detect and quantify non-labeled polystyrene nanoplastics in rodent tissues. They created tissue-specific digestion protocols for intestine, kidney, and liver that maximize particle recovery while preventing loss of submicron particles. The method provides a standardized approach for tracking nanoplastics in biological samples, which is essential for evaluating potential health risks.
Size-Resolved SERS Detection of Trace Polystyrene Nanoplastics via Selective Electrosorption
Researchers developed a new method that combines electrical attraction with laser-based detection to identify polystyrene nanoplastics as small as 20 nanometers in water samples. The technique can detect extremely low concentrations and can distinguish between different sizes of nanoplastic particles. This kind of sensitive detection tool is important because it could help scientists better measure the tiny plastic particles in drinking water and food that may pose risks to human health.
Defining the size ranges of polystyrene nanoplastics according to their ability to cross biological barriers
Researchers systematically examined polystyrene nanoplastics of different sizes to define the size ranges at which they can cross biological barriers, providing a more precise definition of nanoplastic dimensions relevant to toxicological assessment.