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61,005 resultsShowing papers similar to Targeted and non-targeted analysis of microplastics exposure using pyrolysis gas chromatography ion mobility mass spectrometry
ClearInto the Nanograms─Sensitive Detection of Microplastics in Passively Sampled Indoor Air Using F-Splitless Pyrolysis Gas Chromatography Mass Spectrometry
Researchers developed a highly sensitive method for detecting airborne microplastics in indoor air at the nanogram level using advanced pyrolysis gas chromatography. The study suggests this technique can rapidly identify and quantify microplastics on air sampling filters with minimal preparation, making it easier for scientists to measure the scale of indoor microplastic exposure.
Simultaneous determination of six microplastics in drinking water by pyrolysis-gas chromatography/mass spectrometry
Scientists developed an analytical method using pyrolysis-gas chromatography/mass spectrometry that can simultaneously detect and quantify six common types of microplastic in drinking water — including polyethylene, polypropylene, polystyrene, PET, PMMA, and PVC — with high sensitivity across a wide concentration range. Having a reliable, multi-polymer detection method is essential for monitoring drinking water safety and setting evidence-based regulatory limits.
Routine method for the analysis of microplastics in natural and drinking water by pyrolysis coupled to gas chromatography-mass spectrometry
Researchers developed a standardized method to measure microplastics in drinking water using a technique called pyrolysis gas chromatography-mass spectrometry. They tested the method on river water, reclaimed water, and tap water in Barcelona, finding microplastic concentrations ranging from 11 to 77 micrograms per liter. Reliable detection methods like this are essential for understanding how much microplastic people are actually consuming through their drinking water.
Size-resolved identification and quantification of micro/nano-plastics in indoor air using pyrolysis gas chromatography-ion mobility mass spectrometry
A novel pyrolysis gas chromatographic cyclic ion mobility mass spectrometer method was developed to identify and quantify micro- and nanoplastics smaller than 1 micrometer in indoor air, finding four common plastic types in tested samples.
Detection of trace sub-micron (nano) plastics in water samples using pyrolysis-gas chromatography time of flight mass spectrometry (PY-GCToF).
Researchers evaluated pyrolysis-gas chromatography/mass spectrometry combined with thermal extraction-desorption for detecting sub-micron and nano-sized plastics in water samples, finding it could identify plastic polymers at low concentrations. The method addresses a key gap in detecting the smallest plastic particles in aqueous environments.
Monitoring Poly(methyl methacrylate) and Polyvinyl Dichloride Micro/Nanoplastics in Water by Direct Solid-Phase Microextraction Coupled to Gas Chromatography–Mass Spectrometry
Researchers developed a novel method for detecting and quantifying micro- and nanoplastics in water using solid-phase microextraction coupled with gas chromatography-mass spectrometry. The technique successfully identified poly(methyl methacrylate) and polyvinyl dichloride particles at low concentrations without requiring extensive sample preparation. The study offers a simpler, more sustainable, and more sensitive approach for monitoring plastic particle contamination in aqueous environments.
Microplastics in the drinking water supply system: analysis of water from the source to the tap by pyrolysis-GC-MS
Researchers analyzed microplastic concentrations in raw, treated, and tap water from the Amsterdam drinking water supply system over six months using pyrolysis-GC-MS, targeting six common polymers including PE, PP, PS, PET, PVC, and PMMA. PE and PVC were frequently detected in tap water, contributing new data on MP levels throughout the full drinking water supply chain and their implications for human exposure estimation.
Pyr-GC-Orbitrap-MS method for the target/untargeted analysis of microplastics in air
Researchers developed a pyrolysis-gas chromatography method coupled with Orbitrap mass spectrometry for detecting microplastics in air samples. The technique was optimized for ten common plastic polymers and achieved detection limits in the low microgram range. The study demonstrates that this analytical approach can identify both known and unknown plastic polymers in airborne particulate matter.
Microplastics in drinking water: quantitative analysis of microplastics from source to tap by pyrolysis–gas chromatography-mass spectrometry
Researchers used pyrolysis–GC-MS to quantify microplastics by mass concentration at each stage of Amsterdam's drinking water supply—from raw surface water through two treatment plants to household tap water—providing rare mass-based data on MP fate during treatment.
Size-Resolved Identification and Quantification of Micro/Nanoplastics in Indoor Air Using Pyrolysis Gas Chromatography–Ion Mobility Mass Spectrometry
Scientists developed a new method to measure micro and nanoplastics in indoor air down to 56 nanometers in size, using advanced mass spectrometry techniques. They found significant concentrations of plastic particles in both a laboratory and a private home, with polystyrene being the most common type, and also detected flame retardant chemicals associated with plastic furniture foam. This study provides some of the first evidence that people are breathing in substantial amounts of nanoscale plastic particles indoors, where most people spend the majority of their time.
Identification of Microplastics in Drinking Water Using Pyrolysis-GC/MS
Researchers used pyrolysis-GC/MS to identify and quantify microplastics by polymer mass (rather than particle count) in drinking water samples. The method detected multiple polymer types and provided mass-based metrics that are more toxicologically relevant than particle counts commonly reported in water quality studies.
A straightforward Py-GC/MS methodology for quantification of microplastics in tap water
Researchers developed a simpler, more affordable method for detecting and measuring microplastics in tap water using pyrolysis gas chromatography-mass spectrometry without needing expensive custom databases. The method successfully identified seven common polymer types in drinking water samples, making it easier for labs to monitor microplastic contamination in the water supply.
Application of GCMS-pyrolysis to estimate the levels of microplastics in a drinking water supply system
Researchers developed a filtering device to test for microplastics at different stages of a Norwegian city's drinking water supply and found plastic particles present throughout the system. Raw water sources contained the highest levels, but water treatment processes reduced microplastic concentrations by 43% to 100% depending on the polymer type. Polyethylene, polyamide, and polyester were the most commonly detected plastics, highlighting that drinking water is a measurable route of human microplastic exposure.
Quantitative analysis of nanoplastics in environmental and potable waters by pyrolysis-gas chromatography–mass spectrometry
Scientists developed and validated a new method to detect and measure nine types of nanoplastics in drinking and environmental water at very low concentrations. They found nanoplastics in every water sample tested, with polyethylene, PET, polypropylene, and polystyrene being the most common at levels up to 1.17 micrograms per liter. This is one of the first studies to quantify nanoplastics in drinking water, confirming that people are regularly exposed through their tap water.
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.
Identification and Quantification of Nanoplastics in Surface Water and Groundwater by Pyrolysis Gas Chromatography–Mass Spectrometry
Researchers developed a method combining ultrafiltration and pyrolysis gas chromatography-mass spectrometry to identify and quantify nanoplastics in surface water and groundwater. The study successfully detected six types of plastic polymers at the nanoscale in environmental water samples, providing much-needed quantitative data on nanoplastic pollution in real-world water sources.
Cloud-Point Extraction Combined with Thermal Degradation for Nanoplastic Analysis Using Pyrolysis Gas Chromatography–Mass Spectrometry
Researchers developed a cloud-point extraction method combined with pyrolysis GC-MS to detect and quantify nanoplastics in aqueous samples, achieving detection of particles smaller than those typically measurable with conventional microplastic methods. The technique addresses a critical analytical gap in understanding nanoplastic contamination in water environments.
A Novel Strategy to Directly Quantify Polyethylene Microplastics in PM2.5 Based on Pyrolysis-Gas Chromatography–Tandem Mass Spectrometry
Researchers developed a new method using pyrolysis gas chromatography-tandem mass spectrometry to directly measure polyethylene microplastics in fine airborne particulate matter (PM2.5). This technique overcomes limitations of visual and spectroscopic methods that struggle to detect very small plastic particles in air samples. The study provides one of the first tools for accurately quantifying microplastics in PM2.5, helping researchers better understand the extent of airborne plastic pollution.
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.
Enrichment of Nanoplastics in Waters Using Magnetic Solid Phase Extraction With Magnetic Biochar Adsorbents and Their Determination by Pyrolysis Gas Chromatography‐Mass Spectrometry
Researchers developed a method combining magnetic biochar with pyrolysis gas chromatography to detect and measure nanoplastics in water at very low concentrations. The magnetic biochar efficiently captured polystyrene nanoplastics from both tap and river water, achieving detection limits below 1 microgram per liter. The approach offers a practical and sensitive tool for monitoring nanoplastic contamination in drinking water sources.
Standard Test Method for Identification of Polymer Type and Quantity of Microplastic Particles and Fibers in Waters with High to Low Suspended Solids Using Pyrolysis-Gas Chromatography/Mass Spectrometry
Researchers developed and standardized a pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) test method for identifying and quantifying microplastic polymer types and quantities across waters with varying suspended solids levels. The standard addresses the growing recognition of polymeric organic compounds as contaminants in drinking water, wastewater, surface water, groundwater, and marine waters.
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.
Polymers of micro(nano) plastic in household tap water of the Barcelona Metropolitan Area
Researchers developed a workflow using toluene extraction and advanced polymer chromatography coupled to high-resolution mass spectrometry to identify and quantify micro and nanoplastic polymers between 0.7 and 20 micrometers in tap water. Applying the method to samples from 42 postal codes in the Barcelona Metropolitan Area detected polyethylene, polypropylene, polyisoprene, and polybutadiene in drinking water.
Standard Test Method for Identification of Polymer Type and Quantity of Microplastic Particles and Fibers in Waters with High to Low Suspended Solids Using Pyrolysis-Gas Chromatography/Mass Spectrometry
This paper describes the development of an ASTM standard test method using pyrolysis–gas chromatography/mass spectrometry (Py-GC/MS) to identify and quantify specific polymer types in microplastic particles and fibers across a wide range of water types, from drinking water to marine water. Standardizing how microplastics are measured is a critical step toward producing comparable data across studies and enabling consistent regulatory monitoring. A validated, accepted method like this helps close the large gaps in microplastic data that currently hinder risk assessment and policy-making.