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Papers
61,005 resultsShowing papers similar to Comparison between two methods for microplastic separation from sandy sediments
ClearComparison of Different Procedures for Separating Microplastics from Sediments
Researchers compared three different methodologies for separating dense microplastics from fine sediments, finding significant differences in recovery rates and identifying contamination risks during the separation procedures.
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.
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.
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.
Extraction of microplastic from marine sediments: A comparison between pressurized solvent extraction and density separation
Researchers compared pressurized solvent extraction against density separation for extracting microplastics from marine sediments, evaluating the efficiency, accuracy, and practicality of each method to help establish consensus analytical protocols for deep-sea and coastal sediment samples.
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.
Density-Based Multi-Stage Flotation Sorting of Microplastics in Beach Sand
Researchers developed a density-based multi-stage flotation sorting method for separating microplastics from beach sand, achieving high separation efficiency across multiple polymer types with different densities using sequential salt solutions of increasing concentration.
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.
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.
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.
Microplastic extraction from sediments established? – A critical evaluation from a trace recovery experiment with a custom-made density separator
Scientists evaluated the accuracy of a custom density separator for extracting small microplastic particles from sediment, finding variable recovery rates across different polymer types. Standardized and validated extraction methods are essential for accurate measurements of microplastic contamination in sediment environments.
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.
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.
Research Progress on Separation and Detection Methods of Microplastics in Soil Environment
This review summarizes methods for separating and detecting microplastics in soil environments, identifying the most effective analytical approaches and highlighting the need for standardization to improve comparability across studies.
Comparison of different salt solutions for density separation of conventional and biodegradable microplastic from solid sample matrices
Researchers compared different salt solutions for separating microplastics from solid environmental samples like sand, soil, and compost. Sodium bromide achieved the highest recovery rates of 87 to 100% for conventional plastics and 38 to 78% for biodegradable plastics, and the study highlights that sample matrix type significantly influences recovery and must be considered when choosing analytical methods.
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.
Comparison of pre-treatment methods and heavy density liquids to optimize microplastic extraction from natural marine sediments
Researchers compared multiple pre-treatment methods and density separation liquids for extracting microplastics from marine sediments, identifying optimised protocols that improved recovery rates and reduced contamination, supporting the development of more standardised monitoring approaches.
Comparing methods for optimising microplastic extraction in sediment through density separation
Researchers compared six density separation solutions and two transfer methods for extracting microplastics from marine sediment. CaCl2-saturated solution with decantation achieved 90% recovery regardless of polymer type, size, or shape, and was safer and cheaper than the next-best option (ZnCl2), recommending it as a standardized method.
Efficacy of Microplastic Separation Techniques on Seawater Samples: Testing Accuracy Using High-Density Polyethylene
Scientists tested four common methods for separating microplastics from seawater samples and found that each method recovered different amounts and types of particles. Standardizing separation methods is critical for making microplastic concentration data comparable across different studies.
Rapid extraction of high- and low-density microplastics from soil using high-gradient magnetic separation
High-gradient magnetic separation was developed as a method to extract both high- and low-density microplastics from soil, overcoming the limitation of conventional density-based separation that often misses heavier plastic types. The approach improved overall microplastic recovery and offers a more complete picture of soil contamination.
Upgraded Protocol for Microplastics’ Extraction from the Soil Matrix by Sucrose Density Gradient Centrifugation
Extracting microplastics from soil is technically difficult because soil contains dense organic matter and particles that look similar to plastic under analysis. This study refined a sucrose density gradient centrifugation method to more cleanly separate microplastics from soil, improving recovery rates while reducing contamination from non-plastic material. A reliable soil extraction protocol is essential for accurately measuring how much microplastic pollution has accumulated in agricultural and urban land.
A simple method for the extraction and identification of light density microplastics from soil
This study developed and validated a simple method for extracting and identifying low-density microplastics from sediment samples, offering a practical and cost-effective approach for environmental monitoring.
Separation of microplastics from deep-sea sediment using an affordable, simple to use, and easily accessible density separation device
Researchers developed an affordable, simple, and accessible density separation device for extracting microplastics from deep-sea sediment, addressing the lack of accuracy and reproducibility in existing extraction methods. The study included spike-recovery experiments as positive controls to validate extraction performance across different sediment matrices.
Assessing the efficiency of microplastics extraction methods for tropical beach sediments and matrix preparation for experimental controls
Researchers tested and compared multiple methods for extracting microplastics from tropical beach sediment samples and evaluated how to prepare reliable experimental controls, finding that method choice significantly affects both recovery efficiency and particle counts. Standardizing extraction protocols is essential for generating comparable baseline data across study sites — a prerequisite for designing evidence-based policies to address microplastic pollution on beaches.