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Papers
61,005 resultsShowing papers similar to A new approach in separating microplastics from environmental samples based on their electrostatic behavior
ClearEvaluation of Electrostatic Separation of Microplastics From Mineral-Rich Environmental Samples
This study evaluated electrostatic separation as a technique for extracting microplastics from mineral-rich environmental samples like soil and sediment, finding that recovery rates varied significantly by polymer type. Electrostatic separation shows promise for processing large sample volumes but requires further optimization before it can be reliably used for routine microplastic monitoring.
Study of Micro-Plastics Separation From Sea Water With Electro-Magnetic Force
Researchers developed a method to remove microplastics from seawater using electromagnetic force, exploiting differences in electrical properties between plastics and water. The technique shows potential as a physical removal approach that avoids adding chemical agents to the marine environment.
Recent Advances on Density Separation Techniques for Microplastic Recovery from Sediments
This review summarises recent advances in density separation techniques for extracting microplastics from sediments, evaluating the effectiveness of different salt solutions and comparing novel approaches such as electrostatic separation and pressurised fluid extraction against conventional methods.
Not all microplastics are created equal. Quantifying efficacy bias and validation of density separation methods
Researchers evaluated and validated density separation methods for extracting microplastics from environmental matrices, quantifying efficacy bias across different polymer types with varying densities. They found that recovery rates differ substantially depending on polymer density relative to the separation solution, introducing systematic bias in microplastic concentration estimates across studies.
Methods for separating microplastics from complex solid matrices: Comparative analysis
Separation methods for extracting microplastics from complex solid matrices including soil, sediment, and sludge were systematically compared, evaluating density separation, oil extraction, electrostatic separation, and other approaches. The review provides guidance for choosing appropriate separation methods depending on matrix composition and target microplastic characteristics.
Microplastics everywhere: A review on existing methods of extraction
This review compiled and evaluated existing methods for extracting microplastics from environmental samples, including density separation, oil extraction, and other techniques, assessing their advantages and limitations across different environmental matrices.
Hydrophobicity–water/air–based enrichment cell for microplastics analysis within environmental samples: A proof of concept
Researchers developed a new microplastic separation device that uses the hydrophobic properties of plastic particles combined with fine air bubbles to quickly and effectively extract microplastics from sediment and soil samples. The new method avoids harsh solvents that can degrade microplastic particles and offers a faster alternative to existing separation techniques.
Tribo-Electrostatic Separation Analysis of a Beneficial Solution in the Recycling of Mixed Poly(Ethylene Terephthalate) and High-Density Polyethylene
Researchers optimized an electrostatic separation process for sorting PET and HDPE plastic particles, testing how different parameters affect separation efficiency for recycling. Improving plastic sorting technology is key to increasing recycling rates and reducing the amount of plastic waste that ultimately degrades into environmental microplastics.
An optimized density-based approach for extracting microplastics from soil and sediment samples
Researchers optimized a density-based extraction method for isolating microplastics from soil and sediment samples, testing different density solutions and separation steps to maximize recovery efficiency. The improved protocol reduces contamination risks and particle loss, enabling more accurate quantification of microplastics in terrestrial and freshwater sediment matrices.
Filtering and continuously separating microplastics from water using electric field gradients formed electrochemically in the absence of buffer
Scientists developed a microfluidic system that uses electric fields to continuously separate particles — including microplastics — from water flow without chemical additives. Electric field-based separation could offer a low-energy, chemical-free approach to removing microplastics from water streams.
Non-Destructive Extraction and Separation of Nano- and Microplastics from Environmental Samples by Density Gradient Ultracentrifugation
Researchers developed a non-destructive method using density gradient ultracentrifugation to extract and separate different types of nano- and microplastics from environmental samples. The study demonstrates that this approach can effectively separate various plastic polymer types from complex environmental matrices based on their density differences, offering a promising new tool for microplastic analysis.
A novel, highly efficient method for the separation and quantification of plastic particles in sediments of aquatic environments
Researchers improved a density separation method for isolating microplastics from aquatic sediments, achieving higher recovery rates and reducing processing time compared to earlier approaches. The validated method was designed to be reproducible and cost-effective, addressing the need for reliable standardized protocols in microplastic monitoring.
Assessment of the Electrostatic Separation Effectiveness of Plastic Waste Using a Vision System
Researchers developed an electrostatic separation method for sorting mixed plastic waste by polymer type, providing a faster way to assess the quality of plastic separation in recycling processes. Improved plastic sorting and recycling efficiency is key to reducing the amount of mixed plastic waste that eventually breaks down into microplastics.
Validation of density separation for the rapid recovery of microplastics from sediment
Researchers validated a density separation method for rapidly recovering microplastics from sediment samples, confirming it as a reliable and efficient approach for routine environmental monitoring.
Environmentally safe and cost-effective microplastic isolation using a salt–sugar flotation approach
Researchers developed an environmentally safe and cost-effective microplastic isolation method using a salt-sugar flotation approach as an alternative to conventional expensive salt-based density separation. The technique effectively separates microplastics from environmental matrices while minimizing the chemical burden of the remediation process itself.
Utilizing Electrosorptionfor Efficient Removal ofPolyethylene Microplastics from Water: Critical Factors and MechanisticInsights
An electrosorption method was developed to remove polyethylene microplastics from wastewater, demonstrating improved removal efficiency compared to conventional treatment, especially for smaller particles that typically escape standard wastewater treatment plants.
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.
Removal of Microplastics from Wastewater by Methods of Electrocoagulation and Adsorption
This review examines electrocoagulation and adsorption methods for removing microplastics from wastewater, comparing them against conventional physical, chemical, and biological approaches in terms of removal efficiency, cost, and practical scalability.
Focusing, sorting, and separating microplastics by serial faradaic ion concentration polarization
Researchers demonstrated a microfluidic technique that uses electric fields to continuously separate two types of microplastic particles in flowing water. This lab-on-chip approach could be developed into tools for monitoring or removing specific microplastic types from water treatment systems.
Not all microplastics are created equal. Quantifying efficacy bias and validation of density separation methods
Researchers systematically evaluated density separation methods used to extract microplastics from environmental matrices (water, soil, sediment), investigating whether efficacy varies by polymer density and identifying potential sources of bias in current approaches. The study highlighted risks from lack of methodological standardisation and called for detailed reporting to improve reproducibility across microplastics research.
A modified methodology for extraction and quantification of microplastics in soil
Researchers developed and validated an improved methodology for extracting and quantifying microplastics from soil samples using optimized density separation with different salt solutions. The method achieved high recovery rates for various polymer types and particle sizes while minimizing organic matter interference. The study provides a standardized and reproducible analytical approach that could help address inconsistencies in how microplastics are measured across different soil studies.
Bidimensional Dynamic Magnetic Levitation: Sequential Separation of Microplastics by Density and Size
Researchers developed a two-dimensional dynamic magnetic levitation technique that simultaneously separates microplastics by both material density and particle size in a single step. The 2D-MagLev method addresses a key gap in microplastic sample preparation by resolving mixtures of plastics that differ in both polymer type and particle dimensions.
A novel approach to extract, purify, and fractionate microplastics from environmental matrices by isopycnic ultracentrifugation
Researchers developed a novel isopycnic ultracentrifugation method for simultaneously extracting and fractionating microplastics from complex environmental matrices such as soil, demonstrating that diffusion-based density gradients enable separation of mixed polymer types according to their specific buoyant densities, overcoming limitations of conventional saturated salt density extraction.
Extraction of microplastics from sediment matrices: Experimental comparative analysis
Extraction efficiencies of four methods for separating microplastics from sediment matrices were experimentally compared using spiked samples, finding that density separation with saturated NaCl was adequate for most polymer types but underperformed for high-density polymers, and that no single method achieved complete recovery across all particle sizes and shapes.