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Papers
61,005 resultsShowing papers similar to Validation of density separation for the rapid recovery of microplastics from sediment
ClearA 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.
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.
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.
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.
Comparison 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.
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.
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
This study developed an affordable, simple technique for separating microplastics from deep-sea sediment samples, using density separation and chemical digestion to achieve reliable extraction of plastic particles from these challenging matrices.
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.
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.
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.
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.
Optimization of elutriation device for filtration of microplastic particles from sediment
Researchers optimized an elutriation device — which uses upward water flow to separate particles by density — achieving high microplastic recovery rates from sediment by adjusting flow rate and column diameter. The optimized device provides a practical, low-cost tool for extracting microplastics from environmental sediment samples in research and monitoring programs.
Efficient and sustainable microplastics analysis for environmental samples using flotation for sample pre-treatment
Researchers developed a greener microplastic extraction method using a hydrophobicity-based flotation cell, offering a faster and less chemically intensive alternative to standard density-separation protocols for analyzing microplastics in soils and sediments.
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.
An efficient extraction device for microplastics in marine sediments and its applications
Researchers developed a new high-efficiency extraction device for separating microplastics from marine sediment samples using air pumps and metal perforated plate fillers. The device demonstrated improved effectiveness and efficiency compared to conventional density flotation methods for isolating plastic particles. The study suggests this tool could enhance the accuracy of quantitative microplastic detection in marine environments where sediments serve as significant pollution sinks.
A new small device made of glass for separating microplastics from marine and freshwater sediments
Researchers developed a new compact glass device for extracting microplastics from marine and freshwater sediments via density separation, addressing shortcomings of existing apparatus such as poor recovery rates and time inefficiency.
Canola oil extraction in conjunction with a plastic free separation unit optimises microplastics monitoring in water and sediment
A canola oil extraction method was validated across 19 different plastic polymer types with densities ranging widely, achieving effective microplastic separation from environmental matrices. The method is fast, plastic-free, and works regardless of particle density, making it suitable for comprehensive microplastic analysis.
The extraction of microplastics from sediments: An overview of existing methods and the proposal of a new and green alternative
This review assessed existing methods for extracting microplastics from sediment samples — including density separation, chemical digestion, and filtration — and proposed a green alternative extraction protocol using only salt solutions and enzymatic digestion, reducing chemical waste while achieving comparable recovery rates.
Influence of sediment texture on HDPE microplastics recovery by density separation
This study examined how sediment texture — specifically grain size — affects the recovery of high-density polyethylene microplastics from sediment samples using density separation. Finer sediments retained more microplastics and reduced extraction efficiency. Matching extraction protocols to sediment type is essential for accurate microplastic quantification in environmental samples.
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 novel, density-independent and FTIR-compatible approach for the rapid extraction of microplastics from aquatic sediments
Researchers developed a novel extraction method for microplastics from aquatic sediments that does not rely on density separation, making it compatible with FTIR spectroscopy without requiring additional processing steps. The approach could simplify and speed up microplastic analysis in environmental samples.
Optimized microplastic analysis based on size fractionation, density separation and μ-FTIR
Researchers optimized a multi-step method for extracting and identifying microplastics from soil and sediment, combining grain size separation, density flotation, and infrared microscopy. The validated method achieved high recovery rates for eight common plastic polymers, contributing to more reliable monitoring of soil microplastic contamination.