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Papers
20 resultsShowing papers similar to A novel approach for the quantification of the mass of micro and nanoplastic particles from filter samples
ClearAn Accurate Size-Probability Distribution Method for Converting Microplastic Counts to Mass
Researchers developed a size-probability distribution method to convert microplastic particle counts into mass estimates without requiring detailed morphological measurements for every particle, addressing a key gap in environmental monitoring where mass-based reporting is needed but count-based data is more commonly generated.
A membrane cascade for size-based separation and concentration of nanoplastics in environmental waters
Researchers developed a cascade system of membrane filters that can separate and concentrate nanoplastics from environmental water samples by size. They demonstrated that the system effectively isolates nanoplastic particles while tracking recovery rates using fluorescent markers. The technology addresses a major challenge in nanoplastic research by providing a reliable method to extract these extremely small particles from water for accurate measurement and analysis.
A simple method for mapping microplastics filter collectors for microscopic analyses
Researchers developed a simple mapping method for microplastic filter collectors that improves the efficiency and accuracy of microscopic analysis. The technique uses a systematic grid approach to scan filter membranes, reducing the time and effort needed to locate and identify microplastic particles. The method offers a practical improvement for laboratories conducting routine microplastic quantification from environmental samples.
Efficient Prediction of Microplastic Counts from Mass Measurements
Scientists developed machine learning models to estimate the number of microplastic particles from aggregate weight measurements, potentially offering a faster and cheaper alternative to manual counting. Efficient quantification methods are critical for large-scale monitoring of microplastic contamination in environmental samples.
A new filtration system for extraction and accurate quantification of microplastics
Researchers developed a new filtration system for extracting and accurately quantifying microplastics from solution media, addressing the problem of microplastic particle adsorption onto glassware surfaces that compromises conventional quantification methods. The system improves upon standard density separation and solvent extraction pretreatments to enable more reliable microplastic abundance measurements.
A comprehensive toolkit for micro- to nanoplastic analysis
This review presents a unified analytical toolkit integrating mass-based, particle-based, and morphology-based approaches to enable reliable detection, quantification, and standardization of micro- and nanoplastics across diverse environmental matrices. The framework is intended to improve comparability across studies and support robust monitoring of plastic pollution.
A Novel Application of Filtration for the Collection of Microplastics in Waterways
Researchers developed a novel filtration system for collecting microplastics from waterways, demonstrating its effectiveness as a scalable and practical tool for environmental monitoring and plastic pollution assessment.
Separation and Analysis of Microplastics and Nanoplastics in Complex Environmental Samples
This review examined separation and analysis methods for microplastics and nanoplastics in complex environmental samples, covering density separation, filtration, spectroscopic identification, and emerging approaches for sub-micron particles. The authors identify detection of nanoplastics as a critical unresolved methodological challenge for understanding full plastic contamination in the environment.
Nanoporous membrane filter cascade for size‐selective analysis of nano‐ and microplastic particles
Researchers developed a nanoporous membrane filter cascade system capable of size-selective analysis of plastic particles spanning from microplastic dimensions down to 10 nm nanoparticle dimensions, addressing the challenge of analyzing nano- and microplastics across several orders of magnitude in particle size for drinking water and food chain health impact studies.
Development and testing of a fractionated filtration for sampling of microplastics in water
Researchers developed and tested a fractionated filtration system for sampling microplastics in water bodies, proposing a standardized sampling concept that accounts for plastic-specific properties to improve comparability of microplastic data across different studies and 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.
Quantifying micro- and nanoplastics
This work addresses methodological approaches for quantifying micro- and nanoplastics in environmental samples, examining analytical techniques, sampling strategies, and measurement challenges. The publication is part of the international research literature on standardizing plastic particle detection and quantification methods.
Systematic quantitation for microplastics and nanoplastics based on size-fractionated filtration hyphenated to Raman/SERS and slope-matching strategy
Researchers developed a systematic method for accurately measuring micro- and nanoplastics using size-fractionated filtration combined with Raman and surface-enhanced Raman spectroscopy. The approach addresses the challenge of quantifying plastic particles with heterogeneous size distributions, offering a more reliable strategy for environmental monitoring.
Microplastic and nanoplastic analysis methods, tests and reference materials
Researchers examined current microplastic analysis methods, reference tests, and reference materials, highlighting the limitations of manual counting approaches and evaluating alternatives to enable more scalable, consistent, and cost-effective monitoring of plastic litter accumulation in ocean environments.
Platinum vaporization-deposition coated polycarbonate membranes for comprehensive, multimodal, and correlative microscopic analysis of micro-and nanoplastics and other environmental particles
This study developed a platinum-coated polycarbonate membrane system for comprehensive sampling and analysis of anthropogenic particles including microplastics from diverse environmental matrices. Standardized sampling and analysis methods are urgently needed to make microplastic contamination data comparable across studies and environments.
Expanding sample volume for microscopical detection of nanoplastics
Scientists developed a new method that can detect nanoplastics in much larger water samples than was previously possible, scaling up from tiny droplets to full liters of seawater. The technique combines specialized membrane filters with enhanced Raman spectroscopy to identify individual nanoplastic particles. This advancement addresses a major technical barrier in understanding how widespread nanoplastic contamination really is in ocean environments.
Mass concentration of plastic particles from two-dimensional images
Researchers developed methods to estimate the mass of microplastic particles from two-dimensional images, which is important because toxicity studies need mass-based exposure data rather than just particle counts. They found that reasonable mass estimates are possible but require additional information about particle thickness, especially for flat or elongated shapes. This methodological advance could improve the accuracy of microplastic exposure assessments used to evaluate human health risks.
New Analytical Approaches for Effective Quantification and Identification of Nanoplastics in Environmental Samples
This review assessed new analytical approaches for quantifying and identifying nanoplastics in environmental samples, highlighting fundamental challenges in detection due to their small size and the need for improved methods to understand nanoplastic contamination levels.
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.
Separation of microplastics from mass-limited samples by an effective adsorption technique
Researchers compared adsorption-based separation techniques for extracting microplastics from mass-limited environmental samples, evaluating efficacy and potential degradative effects on polymer integrity. The optimized method improved recovery rates and comparability of results across different sample matrices.