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Papers
61,005 resultsShowing papers similar to Identification of polymer types and additives in marine microplastic particles using pyrolysis-GC/MS and scanning electron microscopy
ClearOptimization, performance, and application of a pyrolysis-GC/MS method for the identification of microplastics
Researchers optimized a pyrolysis-GC/MS method for identifying and quantifying microplastics in environmental samples, improving the reliability of polymer identification especially for small particles that are difficult to classify visually. The improved method is particularly valuable for analyzing the smallest microplastic size fractions that dominate by number in marine environments.
Analysis of microplastics in the environment: Identification and quantification of trace levels of common types of plastic polymers using pyrolysis-GC/MS
Researchers developed analytical methods using pyrolysis coupled with gas chromatography-mass spectrometry for identifying and quantifying 12 common plastic polymers in environmental samples. The validated method achieved detection limits as low as 0.1 micrograms and was successfully applied to analyze microplastics collected from three Mediterranean beaches in northeastern Spain.
Quantification of microplastic targets in environmental matrices using pyrolysis-gas chromatography-mass spectrometry
This study developed and validated a pyrolysis-gas chromatography-mass spectrometry protocol for quantifying common microplastic polymer types in complex environmental matrices, providing a reliable thermal analysis method for assessing microplastic pollution.
Methods of analysing chemicals associated with microplastics: a review
This review surveys analytical methods used to identify and quantify chemicals associated with marine microplastics, covering extraction techniques, spectroscopic approaches, and the challenges of characterizing the complex mixture of polymer additives and adsorbed contaminants.
Simultaneous Trace Identification and Quantification of Common Types of Microplastics in Environmental Samples by Pyrolysis-Gas Chromatography–Mass Spectrometry
Researchers developed a method for simultaneous trace identification and quantification of common microplastic types in environmental samples, improving detection efficiency and enabling more accurate monitoring of multiple plastic polymers at once.
Fast identification of microplastics in complex environmental samples by a thermal degradation method
Researchers developed a fast identification method for microplastics in complex environmental samples using thermal analysis, offering a high-throughput alternative to spectroscopic techniques for polymer identification.
An overview of microplastics characterization by thermal analysis
This review explores the potential of thermal analytical techniques - including thermogravimetry and pyrolysis-GC/MS - for identifying and characterizing microplastics in environmental samples, covering both manufactured primary microplastics and degradation-derived secondary ones. Thermal methods offer advantages for bulk quantification and polymer identification that complement spectroscopic approaches.
Methods of the Investigation and Chemical Analysis of Microplastics and the Determination of Associated Compounds
This review surveys the major analytical methods used to identify microplastics and determine their chemical composition, including spectral, chromatographic, microscopic, and thermal techniques. Researchers compare the strengths and limitations of each approach for detecting different polymer types and associated chemical additives. The study serves as a practical guide for selecting appropriate methods for microplastic analysis in environmental and biological samples.
Identification and quantification of additive-derived chemicals in beached micro-mesoplastics and macroplastics.
Researchers screened 261 macro- and micro-mesoplastic debris samples from two beaches for plastic additives, detecting 52 chemicals including antioxidants, phthalates, UV stabilizers, and flame retardants, and finding that antioxidant degradation products served as markers for weathering duration in the marine environment.
Previous successes and untapped potential of pyrolysis–GC/MS for the analysis of plastic pollution
This review highlights the potential of pyrolysis combined with gas chromatography and mass spectrometry as a powerful tool for analyzing plastic pollution. Unlike traditional spectroscopy methods, this technique can determine the mass and chemical composition of microplastics, including additives, which is important for understanding health risks. The authors argue this method is underutilized and could significantly advance microplastic research, particularly for very small particles that are difficult to analyze with other approaches.
Qualitative characterisation and identification of microplastics in a freshwater dam at Gauteng Province, South Africa, using pyrolysis–gas chromatography–time of flight–mass spectrometry (Py–GC–ToF–MS)
Researchers used pyrolysis gas chromatography-time of flight-mass spectrometry (Py-GC-ToF-MS) to characterise microplastics extracted from five locations in Rietvlei Dam, South Africa, identifying five polymer types (PE, PS, PA, PVC, and PET) as well as phthalate and fatty acid additives, with polyamide being the dominant polymer at 52%.
Determination of the microplastic content in Mediterranean benthic macrofauna by pyrolysis-gas chromatography-tandem mass spectrometry
Researchers developed an analytical method combining pyrolysis with gas chromatography-tandem mass spectrometry (Py-GC-MS/MS) for quantifying six common plastic polymers in Mediterranean benthic macrofauna with minimal sample preparation. The method achieved lower detection limits than conventional Py-GC/MS for six polymers including polyethylene and polypropylene, enabling more sensitive monitoring of MP contamination in seafloor organisms.
Microplastics in the environment: Sampling, pretreatment, analysis and occurrence based on current and newly-exploited chromatographic approaches
This review comprehensively examined sampling, pretreatment, and chromatographic analysis methods for microplastics in environmental matrices, evaluating conventional and newly developed approaches and identifying liquid chromatography and pyrolysis-GC/MS as the most promising platforms for chemical characterization of complex microplastic mixtures.
Microplastics Identification by Pyrolysis Gas Chromatography Mass Spectrometry (py-GCMS)
This paper reviews pyrolysis gas chromatography mass spectrometry (Py-GC/MS) as a method for identifying and quantifying microplastics in environmental samples. The technique can identify specific polymer types even in complex environmental matrices where visual identification is difficult.
Characterization of plastic micro particles in the Atlantic Ocean seashore of Cape Town, South Africa and mass spectrometry analysis of pyrolyzate products
Pyrolysis-GC-TOF-MS analysis of marine water samples from Cape Town, South Africa, identified 16 polymer types in microplastics, with polyethylene dominant, along with chemical additives and plasticizers, many of which are classified as irritants or health hazards under international safety standards. The presence of hazardous pyrolysis products highlights concerns about the chemical risks associated with microplastic pollution.
Pyrolysis GC-MS Characterization of Plastic Debris from the Northern Gulf of Alaska Shorelines
Using pyrolysis GC-MS, researchers chemically characterized 115 plastic debris samples collected from shorelines in the northern Gulf of Alaska, identifying polyethylene and polypropylene as the dominant polymers regardless of the debris's physical appearance or degree of weathering. Accurate polymer identification of environmental plastic litter is foundational to understanding degradation pathways and the types of microplastics that eventually enter marine food webs.
Microwave-assisted pretreatments and analytical pyrolysis for the quantification of microplastics and correlated pollutants
Researchers developed and evaluated microwave-assisted pretreatment methods combined with analytical pyrolysis to simultaneously quantify microplastics and associated co-pollutants such as additives and persistent organic pollutants, addressing gaps in understanding how these contaminant classes interact in ecosystems.
Analysis of polyethylene microplastics in environmental samples, using a thermal decomposition method
Researchers developed a thermal analysis method using pyrolysis-GC/MS to identify and quantify polyethylene microplastics in environmental samples without relying on visual sorting or density separation. The approach provides a more objective and automatable way to measure microplastic mass in complex environmental matrices.
Application of multi-step approach for comprehensive identification of microplastic particles in diverse sediment samples
Researchers developed a multi-step analytical approach to comprehensively identify and characterize microplastics in environmental samples, combining visual, spectroscopic, and thermal analysis. A systematic, multi-method approach is needed to capture the full diversity of microplastic types present in complex environmental matrices.
Plastic additives and microplastics as emerging contaminants: Mechanisms and analytical assessment
Researchers reviewed how chemical additives mixed into plastics during manufacturing — including stabilizers, flame retardants, and plasticizers — can leach out throughout a plastic's lifecycle and pose risks to ecosystems and human health, with microplastics acting as carriers that concentrate and transport these hazardous chemicals.
Systematic Development of a Simultaneous Determination of Plastic Particle Identity and Adsorbed Organic Compounds by Thermodesorption–Pyrolysis GC/MS (TD-Pyr-GC/MS)
Researchers developed a new pyrolysis-based analytical method that can simultaneously identify the polymer type and measure adsorbed organic pollutants on plastic particles in a single step. This combined approach removes the need for complex extraction steps and could simplify the detection of plastic-associated chemical contaminants in environmental samples.
Thermogravimetric analysis and kinetic study of marine plastic litter
This study characterized the composition and thermal degradation behavior of collected marine plastic debris, exploring pyrolysis as a method for recovering energy from plastic waste that cannot be recycled. Managing the large volumes of plastic debris in the ocean requires both prevention and end-of-life treatment solutions.
Analytical methods for microplastics in the environment: a review
Researchers reviewed classical and advanced analytical methods for detecting microplastics in the environment. The methods covered include visual analysis, electron microscopy, infrared and Raman spectroscopy, thermal analysis, mass spectrometry, and flow cytometry, providing a comprehensive overview of available tools for microplastic identification and quantification.
Microwave-assisted solvent extraction and double-shot analytical pyrolysis for the quali-quantitation of plasticizers and microplastics in beach sand samples
Researchers developed an analytical method combining microwave-assisted solvent extraction with double-shot pyrolysis-GC-MS for simultaneous quantification of plasticizers and microplastics in beach sand samples. The approach allowed both soluble plastic additives and residual polymer microplastics to be characterized from a single environmental matrix.