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Representative Test Material for Validation of Density Separation as Part of Microplastic Quantification in Drinking Water
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Researchers developed and characterized a PVC-based representative test material for validating density separation procedures used in microplastic quantification in drinking water, in line with EU Drinking Water Directive requirements. The material's physicochemical characterization and application in validation protocols provides a practical reference for standardizing analytical methods for drinking water MP monitoring.
The evolving regulatory landscape for microplastics-including the European Union's Drinking Water Directive-underscores the importance of addressing the analytics of emerging contaminants in water, ensuring public health protection, and fostering scientific advancements in environmental monitoring. This work aims to contribute to these advancements by sharing the strategy of test material selection and characterisation for the validation of sample treatment protocols. The article describes a PVC-based representative test material of industrial origin, its physicochemical characterisation, and its application in density separation procedure evaluation, compatibly with the European Commission's recommendations for quantifying microplastics in water for human consumption. The work shares our protocol for the durable fluorescent labelling of microplastic particles and for the centrifugal density separation of microplastics from other particulate contaminants in drinking water samples. It reports density and viscosity values for the zinc chloride solutions used to feed the theoretical calculations and recovery values achieved with the presented density separation protocol.
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Representative Test Material for Validation of Density Separation as Part of Microplastic Quantification in Drinking Water
AI summary Read the abstract
This technical paper described a PVC-based representative test material of industrial origin for validating density separation procedures used to quantify microplastics in drinking water, compatible with European Commission recommendations under the EU Drinking Water Directive. The material enables standardized method validation for regulatory compliance monitoring of microplastics in water intended for human consumption.
Preparation of a reference material for microplastics in water—evaluation of homogeneity
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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.
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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.
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Researchers developed and validated a standardized sample preparation method for extracting microplastics from freshwater samples, testing enzymatic digestion and density separation steps to improve recovery rates and reduce measurement uncertainty across different particle types.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.