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61,005 resultsShowing papers similar to ACFs-NH2 developed for dispersive solid phase extraction combined with Py-GC/MS for nanoplastic analysis in ambient water samples
ClearAminated Carbon Nanofiber-Mediated Nanoconfined Liquid Phase Nanoextraction Coupled with Py-GC/MS for Sensitive Determination of Polystyrene Nanoplastics
Researchers developed a novel method combining aminated carbon nanofiber-based nanoextraction with pyrolysis-gas chromatography-mass spectrometry for detecting polystyrene nanoplastics in water. The technique achieved highly sensitive detection of nanoplastics at trace levels, offering a promising tool for monitoring nanoplastic contamination in environmental water samples.
Identification of polystyrene nanoplastics from natural organic matter in complex environmental matrices by pyrolysis–gas chromatography–mass spectrometry
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.
Evaluating the Occurrence of Polystyrene Nanoparticles in Environmental Waters by Agglomeration with Alkylated Ferroferric Oxide Followed by Micropore Membrane Filtration Collection and Py-GC/MS Analysis
Researchers developed a sensitive detection method using alkylated iron oxide nanoparticles to capture nanoplastics from water for analysis by pyrolysis-GC/MS, achieving detection limits of 0.02-0.03 micrograms per liter. Polystyrene nanoplastics were detected in 11 of 15 environmental water samples at concentrations up to 0.73 micrograms per liter, confirming their widespread presence.
Enrichment of Nanoplastics in Waters Using Magnetic Solid Phase Extraction With Magnetic Biochar Adsorbents and Their Determination by Pyrolysis Gas Chromatography‐Mass Spectrometry
Researchers developed a method combining magnetic biochar with pyrolysis gas chromatography to detect and measure nanoplastics in water at very low concentrations. The magnetic biochar efficiently captured polystyrene nanoplastics from both tap and river water, achieving detection limits below 1 microgram per liter. The approach offers a practical and sensitive tool for monitoring nanoplastic contamination in drinking water sources.
Monitoring Poly(methyl methacrylate) and Polyvinyl Dichloride Micro/Nanoplastics in Water by Direct Solid-Phase Microextraction Coupled to Gas Chromatography–Mass Spectrometry
Researchers developed a novel method for detecting and quantifying micro- and nanoplastics in water using solid-phase microextraction coupled with gas chromatography-mass spectrometry. The technique successfully identified poly(methyl methacrylate) and polyvinyl dichloride particles at low concentrations without requiring extensive sample preparation. The study offers a simpler, more sustainable, and more sensitive approach for monitoring plastic particle contamination in aqueous environments.
Nanoplastics Identification in Complex Environmental Matrices: Strategies for Polystyrene and Polypropylene
Researchers developed and compared analytical strategies for detecting and identifying polystyrene and polypropylene nanoplastics in complex environmental matrices, evaluating techniques including pyrolysis-GC/MS, Raman spectroscopy, and electron microscopy, and proposing a multi-method workflow for environmental samples.
Detection of trace sub-micron (nano) plastics in water samples using pyrolysis-gas chromatography time of flight mass spectrometry (PY-GCToF).
Researchers evaluated pyrolysis-gas chromatography/mass spectrometry combined with thermal extraction-desorption for detecting sub-micron and nano-sized plastics in water samples, finding it could identify plastic polymers at low concentrations. The method addresses a key gap in detecting the smallest plastic particles in aqueous environments.
Protein Corona-Mediated Extraction for Quantitative Analysis of Nanoplastics in Environmental Waters by Pyrolysis Gas Chromatography/Mass Spectrometry
Scientists developed a new method for detecting and measuring nanoplastics in environmental water samples using a protein-based extraction technique paired with specialized mass spectrometry. The approach works by adding a protein that naturally coats nanoplastic particles, which can then be separated from the water and analyzed. Using this method, researchers detected nanoplastics in both river water and wastewater treatment plant samples, demonstrating a practical tool for monitoring these tiny but potentially harmful contaminants.
Analysis of microplastics in the environment: Identification and quantification of trace levels of common types of plastic polymers using pyrolysis-GC/MS
Researchers developed analytical methods using pyrolysis coupled with gas chromatography-mass spectrometry for identifying and quantifying 12 common plastic polymers in environmental samples. The validated method achieved detection limits as low as 0.1 micrograms and was successfully applied to analyze microplastics collected from three Mediterranean beaches in northeastern Spain.
Quantitation of Atmospheric Suspended Polystyrene Nanoplastics by Active Sampling Prior to Pyrolysis–Gas Chromatography–Mass Spectrometry
Scientists developed a method to measure polystyrene nanoplastics suspended in outdoor air using active air sampling and a specialized chemical analysis technique. They detected nanoplastics at multiple locations, confirming that these ultra-small plastic particles are present in the air we breathe. Since nanoplastics are small enough to penetrate deep into the lungs and potentially enter the bloodstream, reliable measurement methods like this are critical for understanding airborne exposure risks.
Optimization, performance, and application of a pyrolysis-GC/MS method for the identification of microplastics
Researchers optimized a pyrolysis-GC/MS method for identifying and quantifying microplastics in environmental samples, improving the reliability of polymer identification especially for small particles that are difficult to classify visually. The improved method is particularly valuable for analyzing the smallest microplastic size fractions that dominate by number in marine environments.
Determination of the microplastic content in Mediterranean benthic macrofauna by pyrolysis-gas chromatography-tandem mass spectrometry
Researchers developed an analytical method combining pyrolysis with gas chromatography-tandem mass spectrometry (Py-GC-MS/MS) for quantifying six common plastic polymers in Mediterranean benthic macrofauna with minimal sample preparation. The method achieved lower detection limits than conventional Py-GC/MS for six polymers including polyethylene and polypropylene, enabling more sensitive monitoring of MP contamination in seafloor organisms.
Analysis of Microplastics in Aquatic Shellfish by Pyrolysis–Gas Chromatography/Mass Spectrometry after Alkali Digestion and Solvent Extraction
Researchers developed a pyrolysis-gas chromatography/mass spectrometry method for detecting trace microplastics in aquatic shellfish, achieving 74-102% recovery rates for nylon microplastics after alkali digestion and solvent extraction.
Identification and Quantification of Nanoplastics in Surface Water and Groundwater by Pyrolysis Gas Chromatography–Mass Spectrometry
Researchers developed a method combining ultrafiltration and pyrolysis gas chromatography-mass spectrometry to identify and quantify nanoplastics in surface water and groundwater. The study successfully detected six types of plastic polymers at the nanoscale in environmental water samples, providing much-needed quantitative data on nanoplastic pollution in real-world water sources.
Size-classifiable quantification of nanoplastic by rate zonal centrifugation coupled with pyrolysis-gas chromatography-mass spectrometry
Researchers combined rate-zonal centrifugation with pyrolysis-GC-MS to separately quantify nanoplastics of three distinct size classes (100, 300, and 600 nm) in water samples with high recovery rates (81–89%), providing a scalable analytical method for size-resolved environmental nanoplastic monitoring.
Preparation of environmentally relevant nanoplastics (e-NPs), benefit for fate, behavior and ecotoxicology studies
Researchers developed a method to produce environmentally relevant model nanoplastics by extracting particles from weathered plastic debris collected from the North Pacific garbage patch through agitation, sonication, and sequential filtration. The resulting nanoplastics were characterized using pyrolysis-GCMS, ATR-FTIR, and potentiometric titrations, showing mainly anisotropic particle shapes with surface properties closer to real environmental nanoplastics than commercial polystyrene beads.
Cloud-Point Extraction Combined with Thermal Degradation for Nanoplastic Analysis Using Pyrolysis Gas Chromatography–Mass Spectrometry
Researchers developed a cloud-point extraction method combined with pyrolysis GC-MS to detect and quantify nanoplastics in aqueous samples, achieving detection of particles smaller than those typically measurable with conventional microplastic methods. The technique addresses a critical analytical gap in understanding nanoplastic contamination in water environments.
Hetero-charge-based surface enhanced Raman spectroscopy: An in situ rapid detection strategy for real marine nanoplastics
Researchers developed an in situ SERS detection method using oppositely charged gold nanoparticles to capture and identify nanoplastics directly in seawater without filtration or drying, achieving a detection limit of 0.1 µg/mL in artificial seawater and successfully identifying polystyrene in a real marine sample.
Concentration analysis of metal-labeled nanoplastics in different water samples using electrochemistry
Researchers developed a low-cost electrochemical method to quantify polystyrene nanoplastics in water by attaching silver ions to their surfaces, reducing the silver to metal, and measuring the resulting signal via voltammetry, achieving 93–112% recovery rates across nanoplastic sizes in lake water and seawater.
The Emerging of Microplastic and Nanoplastic as Pollutants and their Characterization and Analysis
This review presents an integrated approach to sampling, sample preparation, and analytical methods for detecting microplastics and nanoplastics in solid and aqueous environmental samples, discussing current challenges and emerging methodologies for more accurate characterization.
Contact-Accessible Silver Nanoparticle-Decorated Electrospun Carbon Fibers for Microplastics Detection by SERS
Scientists developed a new way to detect microplastics (tiny plastic particles) using special silver-coated carbon fibers that can spot these particles much better than current methods. This technology works best on extremely small plastic particles and could help us better identify microplastic contamination in our environment. Better detection of microplastics is important because these particles are increasingly found in our food, water, and air, but we still don't fully understand their health effects.
A rapid method to quantify sub-micrometer polystyrene particles in aqueous model systems by TOC analysis
Researchers developed a fast and inexpensive method to measure the concentration of tiny polystyrene microplastic particles (0.5–6 microns) in water using a standard carbon analyzer, finding that adding metal hydroxides to samples significantly improved detection accuracy. The technique offers labs a practical alternative to expensive equipment for quantifying microplastics in controlled experiments.
A 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.
Efficient extraction of polystyrene nanoplastics from water using an ionic liquid
Researchers developed an ionic liquid-based extraction method for efficiently removing polystyrene nanoplastics from water samples. The technique achieved high recovery rates and demonstrated effectiveness for capturing particles at environmentally relevant concentrations. The study offers a promising analytical and remediation tool for addressing nanoplastic contamination in aquatic environments.