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Papers
20 resultsShowing papers similar to Convenient determination of polystyrene microplastics in soils by gel permeation chromatography-ultraviolet detection analysis
ClearDevelopment and validation of simple UV-spectrophotometric method for the estimation of polystyrene plastic/microplastic
Researchers developed a simple UV spectrophotometry method to detect and quantify polystyrene microplastics in samples. Polystyrene is widely used in food packaging and can release styrene — a potential carcinogen — when in contact with hot or fatty foods, making reliable detection methods important for monitoring contamination.
Microplastic analysis using chemical extraction followed by LC-UV analysis: a straightforward approach to determine PET content in environmental samples
Researchers developed a straightforward method for microplastic analysis combining chemical extraction with LC-UV detection to determine PET content in environmental samples including sewage sludge and bio-waste applied to agricultural soils. The study demonstrated that this approach provides quantitative data on terrestrial microplastic contamination via a practical laboratory workflow.
Selective determination of poly(styrene) and polyolefin microplastics in sandy beach sediments by gel permeation chromatography coupled with fluorescence detection
A new analytical method using gel permeation chromatography with fluorescence detection was developed to identify polystyrene and polyolefin microplastics in beach sediment samples. This technique offers a selective and sensitive alternative to spectroscopy-based methods for detecting common plastic types in environmental samples.
Separate determination of polystyrene nanoplastics and microplastics in water by membrane filtration and gel permeation chromatography-ultraviolet detection analysis
Researchers developed a practical laboratory method to separately measure polystyrene nanoplastics and microplastics in water samples using membrane filtration and a specialized chromatography technique. The method was validated in both environmental water and tap water, confirming the presence of nanoplastics through multiple analytical approaches. This represents an important step forward in the ability to accurately distinguish between different sizes of plastic pollution in drinking and environmental water.
A novel and simple method for measuring nano/microplastic concentrations in soil using UV-Vis spectroscopy with optimal wavelength selection
Researchers developed a simple UV-Vis spectroscopy method for measuring nano- and microplastic concentrations in soil, using optimized wavelength combinations to account for interference from soil particles. The study demonstrated a linear relationship between spectroscopic measurements and actual plastic concentrations, offering a potentially practical tool for monitoring plastic contamination across different soil types.
A cost-effective protocol for detecting fluorescent microplastics in arable soils to study redistribution processes
Researchers developed a low-cost, chemical-free method to track how microplastics move through agricultural soil and into waterways by using fluorescent plastic particles as tracers and detecting them under ultraviolet light, achieving over 85% recovery accuracy and providing a practical tool for studying plastic pollution transport in farming landscapes.
Determination of Polystyrene Microplastic in Soil by Pyrolysis – Gas Chromatography – Mass Spectrometry (pyr-GC-MS)
This study developed and validated a pyrolysis-gas chromatography-mass spectrometry (Pyr-GC-MS) method for quantifying polystyrene microplastics in soil samples. The technique offers a sensitive analytical approach for detecting plastic contamination in terrestrial environments.
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.
A practical method for mass quantification of microplastics in soil media using pyrolysis gas chromatography-mass spectrometry
Researchers developed and validated a pyrolysis gas chromatography-mass spectrometry (Py-GC/MS) method for quantifying polyethylene, polypropylene, and polystyrene microplastics in soil, achieving low detection limits (0.02-0.44 microgram), strong linearity, and recovery rates of 86-100% across three soil types. Cryomilling improved homogeneity and accuracy by 3.2%, and FTIR confirmed polymer identities with over 85% spectral match.
Extraction of Polyethylene and Polypropylene Microplastic from Agriculture Soil
Researchers examined methods for extracting polyethylene and polypropylene microplastics from agricultural soil, investigating how microplastic concentrations affect soil properties and crop productivity while evaluating density separation and other extraction protocols to improve detection and quantification of plastic pollution in agroecosystems.
Determination of microplastics in agricultural soil by double‐shot pyrolysis‐gas chromatography combined with two‐step extraction
Researchers developed a pyrolysis-gas chromatography method combining two-step solvent extraction to simultaneously measure five common microplastic polymer types (PC, PS, PP, PE, PET) in agricultural soil samples with good sensitivity and linearity. A reliable, validated method for quantifying microplastics in soil is essential for understanding how agricultural practices and plastic mulch use contribute to soil contamination and potential human dietary exposure.
Microplastic Analysis in Soil Using Ultra-High-Resolution UV–Vis–NIR Spectroscopy and Chemometric Modeling
Researchers tested a new method using UV-visible-near infrared spectroscopy combined with machine learning to identify microplastics in soil samples. They found the technique could rapidly and accurately distinguish between different plastic polymers and natural soil particles. The study offers a promising alternative to current labor-intensive identification methods, potentially making large-scale microplastic soil monitoring more practical.
Screening for microplastics in agricultural soils: Applying green chemistry principles in extraction and analysis
Researchers developed an environmentally friendly method for extracting and analyzing microplastics in agricultural soils using green chemistry principles. The approach achieved recovery rates exceeding 69% for smaller particles and over 91% for larger ones while minimizing reagent use and waste, and detected both mesoplastics and microplastics predominantly composed of polyethylene and polypropylene in tested soil samples.
Quantification of Microplastics in Soils Using Accelerated Solvent Extraction: Comparison with a Visual Sorting Method
Researchers evaluated accelerated solvent extraction as an alternative to visual sorting for quantifying microplastics in soil, finding it recovered similar total amounts but with some differences by polymer type. Improving the accuracy and efficiency of soil microplastic measurement is essential for understanding agricultural and terrestrial plastic contamination.
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.
Upgraded Protocol for Microplastics’ Extraction from the Soil Matrix by Sucrose Density Gradient Centrifugation
Extracting microplastics from soil is technically difficult because soil contains dense organic matter and particles that look similar to plastic under analysis. This study refined a sucrose density gradient centrifugation method to more cleanly separate microplastics from soil, improving recovery rates while reducing contamination from non-plastic material. A reliable soil extraction protocol is essential for accurately measuring how much microplastic pollution has accumulated in agricultural and urban land.
Methodological Approach for Detecting Polypropylene Microplastics in Agricultural Soil in Southern Portugal
A methodological approach was developed specifically for detecting polypropylene microplastics, one of the most common plastics in the environment. Improved polypropylene-specific detection methods help fill a gap in monitoring programs, since this polymer can be challenging to identify with general-purpose techniques.
Separation and Identification of Conventional Microplastics from Farmland Soils
Researchers developed a low-cost, accessible method for extracting and identifying microplastics from farmland soils using density separation, fluorescent staining, and infrared spectroscopy. The protocol achieved recovery rates between 82% and 101% across different soil types and particle sizes. This standardized approach could help scientists worldwide compare results more reliably and give policymakers better data on agricultural microplastic contamination.
An effective method for the rapid detection of microplastics in soil
A rapid and practical method was developed for detecting and identifying microplastics in soil, addressing the need for faster alternatives to existing time-consuming techniques. The method uses a combination of sieving and staining approaches to accelerate microplastic extraction and identification from soil samples.
An efficient, cost-effective, and environmentally friendly protocol for extracting microplastics from soil samples
Researchers developed an efficient, cost-effective, and environmentally friendly protocol for extracting microplastics from soil samples, addressing the lack of standardized methods and evaluating extraction performance across different soil matrices.