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Papers
61,005 resultsShowing papers similar to Micro- and nanoplastic quantification using pyrolysis GC-MS: the hidden complexity
ClearCurrent techniques for identifying, quantifying, and characterizing micro and nanoplastics with emphasis on strengths, limitations, and challenges
Researchers reviewed current analytical techniques for identifying, quantifying, and characterizing micro- and nanoplastics across environmental matrices. The review highlights the strengths and limitations of methods including FTIR, Raman spectroscopy, and pyrolysis-GC/MS, and calls for standardization to improve comparability across studies.
Does particle size affect micro- and nanoplastic quantification by pyrolysis-gas chromatography-mass spectrometry: a study on polystyrene
Researchers investigated whether particle size affects the accuracy of pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) quantification of micro- and nanoplastics, using polystyrene as a model polymer to assess how sample particle dimensions influence analytical results.
Microplastic and Nanoplastic Analysis: From Pyrolysis Gas Chromatography‐Mass Spectrometry to Pyrolysis Two‐dimensional Gas Chromatography‐Mass Spectrometry—A Critical Review
This review traces the evolution of pyrolysis gas chromatography-mass spectrometry for identifying micro- and nanoplastics, and evaluates the newer two-dimensional version that can better separate overlapping chemical signals. Researchers found that while the advanced technique improves detection accuracy, major challenges remain around the lack of standardized methods for sample preparation and calibration. The study calls for unified protocols and better internal standards so that results across different labs can be meaningfully compared.
Microplastics analysis in environmental samples – recent pyrolysis-gas chromatography-mass spectrometry method improvements to increase the reliability of mass-related data
This study improved pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) methods for measuring mass-related microplastic data in environmental samples, enhancing reliability and sensitivity for trace-level analysis. Better analytical methods are essential for accurately quantifying microplastic contamination across diverse environmental matrices.
Quantification of Microplastics by Pyrolysis Coupled with Gas Chromatography and Mass Spectrometry in Sediments: Challenges and Implications
Researchers identified challenges in quantifying microplastics by pyrolysis-GC/MS in sediment samples, finding that incomplete matrix removal during purification can generate interfering pyrolysis products that lead to overestimation of microplastic concentrations.
QuantifyingNanoplastics and Microplastics in Foodand Beverages Using Pyrolysis-Gas Chromatography–Mass Spectrometry:Challenges and Implications
Researchers evaluated pyrolysis-GC/MS for quantifying nanoplastics and microplastics in common foods and beverages, assessing sensitivity and detection limits across polymer types. The method successfully detected multiple polymer types in food samples but showed limitations for nanoplastics at very low concentrations, highlighting gaps in current dietary exposure assessment.
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.
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.
Analytical challenges associated with the determination of microplastics in the environment
This commentary discusses the significant analytical challenges involved in detecting and quantifying microplastics in environmental matrices, highlighting issues of contamination, standardization, and the complexity of characterizing a diverse range of plastic fragments and fibers.
Fully quantitative analysis of nano-plastics in environmental samples using TD-PTR-MS and multivariate standard addition
This study developed a fully quantitative method for analyzing nanoplastics in environmental samples using thermal desorption pyrolysis-GC/MS, addressing the challenge that nanoplastics are often present at low concentrations in complex matrices. The approach advances detection capabilities needed to accurately assess nanoplastic pollution in natural systems.
Quantifying micro- and nanoplastics
This work addresses methodological approaches for quantifying micro- and nanoplastics in environmental samples, examining analytical techniques, sampling strategies, and measurement challenges. The publication is part of the international research literature on standardizing plastic particle detection and quantification methods.
Standardizing pyrolysis gas chromatography mass spectrometry for nanoplastics and microplastics detection to advance environmental research
Researchers proposed four key recommendations for standardizing how pyrolysis gas chromatography-mass spectrometry is used to detect nano- and microplastics in environmental samples. The recommendations cover sample preparation, scalable heating methods, product selection for measurement, and AI-assisted data analysis. Standardizing these techniques is important because inconsistent methods across laboratories make it difficult to compare microplastic pollution data worldwide.
Fully quantitative analysis of nano-plastics in environmental samples using TD-PTR-MS and multivariate standard addition
Researchers developed a fully quantitative analytical method using thermal desorption pyrolysis-GC/MS to measure nanoplastics in environmental samples, addressing the technical challenges of detecting particles present at low concentrations in complex matrices. The method provides quantitative data on nanoplastic mass concentrations in environmental samples, enabling more rigorous risk assessment.
Optimization, 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.
Quantitation of polystyrene by pyrolysis-GC-MS: The impact of polymer standards on micro and nanoplastic analysis
Researchers evaluated how the choice of polystyrene reference standard affects the accuracy of a key method (Pyrolysis-GC-MS) used to detect and measure microplastics and nanoplastics, finding that different standards with varying molecular structures produce substantially different results for the same sample. This highlights an urgent need for standardized reference materials to make microplastic measurement methods more reliable and comparable across labs.
Towards quantitative microplastic analysis using pyrolysis-gas chromatography coupled with mass spectrometry
Researchers worked to improve a lab technique called pyrolysis-GC/MS — which identifies plastics by heating them until they break apart into detectable chemical fragments — and found that mixing certain plastics together (especially PVC with others) produces unexpected reactions that can throw off measurements. Their findings highlight the urgent need for standardized international methods so that microplastic data from different labs can be reliably compared.
Microplastics in the environment: Challenges in analytical chemistry - A review
This review examined the analytical chemistry challenges of detecting and characterizing microplastics in environmental samples, highlighting ongoing issues with standardization, method sensitivity, and comparability across studies.
Promising techniques and open challenges for microplastic identification and quantification in environmental matrices
This review assessed current and emerging techniques for microplastic identification and quantification in environmental matrices, highlighting advantages and limitations of methods including FTIR, Raman spectroscopy, and pyrolysis-GC/MS.
Nanoplastics Identification in Complex Environmental Matrices: Strategies for Polystyrene and Polypropylene
Researchers developed and compared analytical strategies for detecting and identifying polystyrene and polypropylene nanoplastics in complex environmental matrices, evaluating techniques including pyrolysis-GC/MS, Raman spectroscopy, and electron microscopy, and proposing a multi-method workflow for environmental samples.
Nanoplastics: From Separations to Analysis—Challenges and Limitations
This review examines the challenges of analyzing nanoplastics in environmental samples, from sample preparation to identification. Researchers found that techniques commonly used for larger microplastics are often ineffective for nanoplastics, and that isolating these tiny particles from complex environmental samples remains a major technical hurdle. The study summarizes the advantages and limitations of current microscopic, spectroscopic, and thermal analysis methods and calls for standardized approaches.
Methods and challenges in the detection of microplastics and nanoplastics: a mini‐review
This review evaluated the strengths and weaknesses of analytical methods used to detect and identify microplastics and nanoplastics, including microscopy, spectroscopy, and mass spectrometry techniques. Researchers identified key challenges such as distinguishing genuine environmental microplastics from contamination introduced during sample collection and processing. The study provides recommendations for improving data quality and reliability in microplastic research.
Quantification Challenges in Polymer Analysis in Urban Runoff and Wastewater using Pressurized Liquid Extraction and Double-Shot Pyrolysis-Gas Chromatography-Mass Spectrometry
This study developed and validated a pressurized liquid extraction plus pyrolysis-GC/MS method for quantifying PE, PET, PP, and PS microplastics in urban runoff and wastewater, achieving 43–58% recoveries and addressing matrix-specific calibration challenges for standardized environmental analysis.
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.
Challenge for the detection of microplastics in the environment
This review examines the major challenges in detecting and quantifying microplastics across different environmental matrices, including sampling inconsistencies, contamination risks, and limitations of current analytical methods. Addressing these methodological challenges is essential for producing reliable data on microplastic pollution levels worldwide.