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Papers
61,005 resultsShowing papers similar to Standard Practice for Development of Microplastic Reference Samples for Calibration and Proficiency Evaluation in All Types of Water Matrices with High to Low Levels of Suspended Solids
ClearStandard Practice for Development of Microplastic Reference Samples for Calibration and Proficiency Evaluation in All Types of Water Matrices with High to Low Levels of Suspended Solids
This ASTM standard practice describes procedures for creating reference microplastic samples to calibrate and validate detection methods in water matrices with varying levels of suspended solids. Standardized reference materials are essential for ensuring that different labs and methods produce comparable, reliable results. Consistent calibration tools are a prerequisite for building a credible global dataset on microplastic contamination in water.
Preparation of a reference material for microplastics in water—evaluation of homogeneity
Researchers developed a candidate reference material for microplastics in water and evaluated its homogeneity, finding it suitable for use in laboratory intercomparison studies and as a tool for validating microplastic analytical methods.
Reference materials for microplastics in environmental matrices
This paper discussed the development and use of reference materials for microplastic analysis in environmental matrices, addressing the urgent need for calibration standards to ensure comparable and reliable measurements across different laboratories. Standardized reference materials are a foundational requirement for credible, policy-relevant microplastic monitoring.
Innovative reference materials for method validation in microplastic analysis including interlaboratory comparison exercises
Researchers developed innovative reference materials for validating microplastic analysis methods, presenting interlaboratory comparison results that support quality assurance and standardization in the growing field of microplastic detection.
The use of reference material in microplastic research: general aspects
This paper discussed general considerations for using certified reference materials in microplastic research, arguing that standardized reference materials are essential for ensuring that measurements are reproducible and comparable across different laboratories and studies. The lack of such standards remains a major limitation in the field.
Test Method for Determination of Microplastics Particle and Fiber Size, Distribution, Shape, and Concentration in Waters with High to Low Suspended Solids Using a Dynamic Image Particle Size and Shape Analyzer
This ASTM standard describes a test method using dynamic image particle analysis to measure microplastic particle size, shape, and concentration in water samples with varying levels of suspended solids. The method provides quantitative characterization of microplastic physical properties. Standardized test methods are essential for producing comparable microplastic data across laboratories and monitoring programs.
Development of new microplastic reference particles for usage in pre-defined numbers
This study developed new microplastic reference particles with defined numbers of particles per unit, addressing the lack of standardized reference materials that has hampered comparability across microplastic research studies and analytical methods.
Assessment of microplastic content in natural waters and sediments: sampling and sample preparation
Researchers reviewed and evaluated sampling and analytical methods for measuring microplastic content in natural waters and sediments, assessing sources of error and variability in current approaches. The review recommended a standardized protocol to improve cross-study comparability.
A novel proof of concept approach towards generating reference microplastic particles
This paper presented a proof-of-concept approach for generating standardized reference microplastic particles to improve comparability across analytical methods. The lack of consistent reference materials has been a key barrier to producing reliable and comparable microplastic research data.
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.
A novel proof of concept approach towards generating reference microplastic particles
Researchers developed a new method for creating standardized reference microplastic particles that can be embedded in a dissolvable matrix in precise, known quantities. Current microplastic research suffers from a lack of consistent reference standards, making it difficult to compare results across different laboratories and methods. The approach could significantly improve the quality and comparability of microplastic measurements in environmental studies.
Water quality � Analysis of microplastic in water
This entry presents a British Standard for water quality analysis of microplastics, providing standardized methodology for detecting and quantifying microplastic particles in water samples, available through the BSI Knowledge platform to support consistent laboratory analysis practices.
Assessment of the Microplastics Content in Natural Waters and Sediments: Sampling and Sample Preparation
This review examines the challenges of sampling and preparing water and sediment samples for microplastic analysis, highlighting the lack of standardized methods. Researchers found that differences in collection techniques, sample volumes, and processing steps make it difficult to compare results across studies. The study calls for an internationally agreed-upon analytical framework to improve the reliability and consistency of microplastic monitoring worldwide.
Standard Test Method for Identification of Polymer Type and Quantity of Microplastic Particles and Fibers in Waters with High to Low Suspended Solids Using Pyrolysis-Gas Chromatography/Mass Spectrometry
Researchers developed and standardized a pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) test method for identifying and quantifying microplastic polymer types and quantities across waters with varying suspended solids levels. The standard addresses the growing recognition of polymeric organic compounds as contaminants in drinking water, wastewater, surface water, groundwater, and marine waters.
Validation of Sample Preparation Methods for Microplastic Analysis in Wastewater Matrices—Reproducibility and Standardization
Sample preparation methods for microplastic analysis in wastewater were validated against reference standards to assess recovery rates and reproducibility. The validation study identified methods that reliably extract microplastics from complex wastewater matrices, supporting more consistent environmental monitoring of microplastic discharge from treatment plants.
A reference methodology for microplastic particle size distribution analysis: Sampling, filtration, and detection by optical microscopy and image processing
This study developed a reference methodology for measuring microplastic particle size distributions in natural water, covering sampling, filtration, optical microscopy, and image processing. The authors showed that sample preparation steps and filtration materials significantly affect size distribution measurements across multiple orders of magnitude.
A review of methods for measuring microplastics in aquatic environments
This review critically evaluates methods used to measure microplastics in aquatic environments, covering sampling design, sample processing, and spectroscopic identification, and identifies the most significant sources of methodological variation. Standardizing these methods is essential for generating comparable data across studies and enabling robust environmental risk assessment.
Standard Test Method for Identification of Polymer Type and Quantity of Microplastic Particles and Fibers in Waters with High to Low Suspended Solids Using Pyrolysis-Gas Chromatography/Mass Spectrometry
This paper describes the development of an ASTM standard test method using pyrolysis–gas chromatography/mass spectrometry (Py-GC/MS) to identify and quantify specific polymer types in microplastic particles and fibers across a wide range of water types, from drinking water to marine water. Standardizing how microplastics are measured is a critical step toward producing comparable data across studies and enabling consistent regulatory monitoring. A validated, accepted method like this helps close the large gaps in microplastic data that currently hinder risk assessment and policy-making.
Microplastics in freshwater sediment: A review on methods, occurrence, and sources
This review synthesizes methods, occurrence data, and sources of microplastics in freshwater sediments, comparing approaches and providing recommendations for standardized sampling and analysis to fill knowledge gaps relative to marine research.
Test Method for Determination of Microplastics Particle and Fiber Size, Distribution, Shape, and Concentration in Waters with High to Low Suspended Solids Using a Dynamic Image Particle Size and Shape Analyzer
This ASTM standard test method (duplicate of 45524 and 45915) describes how to measure microplastic particle size, shape, fiber dimensions, and concentration in water using a dynamic image particle analyzer. The method is applicable to water samples with high to low suspended solids content. Standardized test methods are critical for generating comparable microplastic data across different monitoring programs.
Selection of an appropriate fluorescent reference material to assess microplastic recovery in natural waters
Researchers developed a standardized fluorescent reference material for validating methods used to detect microplastics in drinking water samples. The material was designed to closely mimic the size, shape, and composition of real environmental microplastics, enabling more accurate spike-and-recovery testing. The work addresses a key gap in microplastic monitoring by providing a reliable benchmark for ensuring that sampling and analysis methods are capturing particles accurately.
Microplastics in Natural Water: Sources and Determination
This paper reviews the sources of microplastic pollution in aquatic environments and the analytical methods used to characterize and quantify microplastic particles, covering sampling, extraction, and identification techniques relevant to freshwater and marine monitoring.
Method development for microplastic analysis in wastewater
This book chapter describes methods developed to detect and measure microplastics in wastewater samples, addressing the lack of standardized analytical protocols. Reliable detection methods are essential because wastewater treatment plants are a major pathway through which land-based microplastics enter aquatic environments.
A systematic protocol of microplastics analysis from their identification to quantification in water environment: A comprehensive review
This review provides a systematic protocol for identifying and quantifying microplastics in water environments, covering sampling, extraction, and analytical techniques. Researchers evaluate the strengths and limitations of methods including visual sorting, spectroscopic analysis, and thermal techniques for characterizing microplastic pollution. The study emphasizes the urgent need for standardized methodologies to enable meaningful comparisons across different microplastic research studies.