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Papers
61,005 resultsShowing papers similar to Separation of microplastics from mass-limited samples by an effective adsorption technique
ClearMicroplastics 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.
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.
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.
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.
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.
Microplastics in seawater: a study of pretreatment, separation, and recovery.
Researchers developed and compared pretreatment, separation, and recovery methods for isolating microplastics from seawater samples, addressing the methodological diversity that limits comparability across marine monitoring studies. The study identified optimal combinations of techniques that improve microplastic recovery efficiency while minimizing contamination and sample loss.
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.
Critical comparison of rapid methods for the extraction of microplastics from wastewater and investigation of a facile alternative
Researchers critically compared rapid extraction methods for microplastics from wastewater samples and investigated a facile alternative approach, evaluating how well established protocols perform on environmental samples relative to their original optimization conditions.
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.
Evaluation 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.
Binary Solvent Extraction of Microplastics from Complex Environmental Matrix.
Researchers tested a two-solvent extraction method for isolating microplastics from complex environmental matrices. An efficient extraction technique is important for accurately detecting and quantifying microplastics in samples like sediment and biological tissue that contain many other organic and inorganic compounds.
A new approach in separating microplastics from environmental samples based on their electrostatic behavior
Researchers developed a novel electrostatic separation method to isolate microplastics from environmental matrices based on differences in electrostatic behavior between plastic particles and natural materials. The technique offers a low-cost, chemical-free approach to microplastic extraction that could complement or replace existing density separation methods in some applications.
Development of Standardized Methods to Extract and Digest Microplastics in Environmental Samples
Researchers tested 72 combinations of chemical extraction and digestion methods to find approaches that accurately recover microplastics from environmental samples without damaging them. They found that different density separation solutions and digestion reagents can significantly alter the physical and chemical properties of certain plastic types, particularly PET and polystyrene. The study provides practical guidance for selecting methods that preserve microplastic integrity during laboratory analysis.
Separation and characterization of microplastic and nanoplastic particles in marine environment
This review examined methods for separating and characterizing microplastics and nanoplastics in marine environments, addressing challenges posed by their tiny size, diverse properties, and ability to adsorb pollutants.
Comparison of microplastic isolation and extraction procedures from marine sediments
Researchers compared five methods for extracting microplastics (40-710 μm) from marine sediments by spiking known MP quantities into sediment matrices and measuring percent recovery across extraction approaches. Results showed that sediment matrix composition, MP properties including size and polymer type, and extraction method all significantly influenced recovery efficiency, underscoring the need for standardized extraction protocols to enable cross-study comparisons.
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.
Optimized ExtractionMethods for Pristine and AgedMicroplastics from Complex Water Samples
Researchers optimized extraction protocols for recovering both pristine and UV-aged microplastics from complex water matrices including seawater, wastewater, and drinking water, finding that aged MPs require different treatment conditions than pristine particles to achieve reliable recovery.
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.
Extracting and characterizing microplastics and nanoplastics from environmental samples
Researchers developed a standardized four-step extraction method for isolating and characterizing microplastics and nanoplastics from diverse environmental samples, encompassing predigestion, density separation, postdigestion, and postdensity separation steps to improve cross-study comparability.
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.
A novel approach for the quantification of the mass of micro and nanoplastic particles from filter samples
Researchers developed a novel gravimetric approach to quantify the mass of micro- and nanoplastic particles collected on filter membranes, complementing existing count-based spectroscopic methods. The method enabled mass estimation from filter samples without requiring individual particle analysis, providing a faster approach for tracking microplastic mass loads in environmental monitoring.
Microplastics in seawater: a study of pretreatment, separation, and recovery.
Researchers developed and compared pretreatment, separation, and recovery methods for extracting microplastics from seawater samples, evaluating each step for efficiency and contamination risk. The optimized workflow improved particle recovery and reduced matrix interference, supporting more accurate seawater microplastic quantification.
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.
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.