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Fenton's reagent for the rapid and efficient isolation of microplastics from wastewater
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Researchers showed that Fenton's reagent — a low-cost oxidizing chemical — can efficiently remove organic matter from wastewater samples to isolate microplastics without damaging the particles or altering their chemical identity. The method reduces sample preparation time significantly compared to existing techniques and is compatible with downstream FT-IR analysis.
Fenton's reagent was used to isolate microplastics from organic-rich wastewater. The catalytic reaction did not affect microplastic chemistry or size, enabling its use as a pre-treatment method for focal plane array-based micro-FT-IR imaging. Compared with previously described microplastic treatment methods, Fenton's reagent offers a considerable reduction in sample preparation times.
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Enhancing wastewater pretreatment for microplastic detection: optimization of Fenton’s reagent for organic matter removal
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Researchers optimized Fenton's reagent—a hydrogen peroxide and iron ion mixture—for removing organic matter from wastewater samples prior to microplastic detection. They found that higher H2O2 dosage and longer reaction times (up to 48 hours) drove the greatest organic matter removal (up to 70%), while iron dosage had less influence, and developed a predictive model for estimating removal efficiency.
Isolating micro/nanoplastics from organic-rich wastewater: Co/PMS outweighs Fenton system
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Researchers compared two chemical systems for isolating microplastics from organic-rich wastewater and found that a cobalt-based system was far faster and more effective than the traditional Fenton method. The cobalt system completed the isolation of micro- and nanoplastics in just 30 minutes, compared to over 5 hours for the older approach. The study offers a more practical laboratory method for accurately measuring microplastic contamination in complex water samples.
Validation of a Method for Extracting Microplastics from Complex, Organic-Rich, Environmental Matrices
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Researchers tested four common laboratory methods for extracting microplastics from complex samples like soil and sewage sludge to determine which best preserves the plastic particles during analysis. They found that Fenton's reagent was the most effective approach, successfully removing organic matter without damaging the plastic particles. The study provides important methodological guidance for standardizing microplastic research in challenging sample types.
Effects and Impacts of Different Oxidative Digestion Treatments on Virgin and Aged Microplastic Particles
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Researchers evaluated Fenton reagent oxidative digestion pretreatments for extracting microplastics from environmental matrices, comparing recovery efficiency and particle damage across different temperatures and reagent volumes. PVC and PET particles showed the greatest sensitivity to treatment conditions, with morphological and spectral changes confirmed by SEM and FTIR analysis.
Oil-based extraction as an efficient method for the quantification of microplastics in environmental samples
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Researchers validated an oil-based extraction method for pulling microplastics out of sewage sludge and organic-rich soils, finding that pre-treating samples with Fenton's reagent (which destroys organic matter) improved recovery rates to nearly 100% for some plastic types. The study advances efforts to standardize microplastic measurement in complex environmental samples where current methods vary widely.
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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.