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| Main Authors: | , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Analytical chemistry
2026
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| Subjects: | |
| Online Access: | https://pubmed.ncbi.nlm.nih.gov/41407385/ |
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| _version_ | 1868266111372361729 |
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| author | Gahn, M Bryan Wharton, Marcus Mortuza, Asif Hala, David Marshall, Christopher D Kaiser, Karl |
| author_facet | Gahn, M Bryan Wharton, Marcus Mortuza, Asif Hala, David Marshall, Christopher D Kaiser, Karl Gahn, M Bryan Wharton, Marcus Mortuza, Asif Hala, David Marshall, Christopher D Kaiser, Karl |
| collection | PubMed - marine biology |
| contents | Rapid and Sensitive Quantification of Nano- and Microplastics in Water, Sediment, and Biological Tissue by Pyrolysis-Gas Chromatography Tandem Mass Spectrometry with Dynamic Reaction Monitoring. Gahn, M Bryan Wharton, Marcus Mortuza, Asif Hala, David Marshall, Christopher D Kaiser, Karl Microplastics Geologic Sediments Gas Chromatography-Mass Spectrometry Water Pollutants, Chemical Tandem Mass Spectrometry Pyrolysis Animals Environmental Monitoring A highly sensitive and selective method was developed for the quantification of nano- and microplastics (NMPs) in water, sediments, and biological tissues using pyrolysis gas chromatography coupled with triple quadrupole mass spectrometry (Py-GC-qQq-MS). Dynamic multiple reaction monitoring (DMRM) and internal standard calibration enabled quantification of 12 common polymers at nanogram levels (1-126 ng). Sample preparation and cleanup was matrix-specific, employing filtration, enzymatic digestion, or pressurized liquid extraction. The addition of calcium carbonate (CaCO) enhanced signal intensity for several polymers, while tandem mass spectrometry ensured high specificity and sensitivity. Lipid interference for the major plastics polyethylene, polypropylene and nylon-66 was addressed by developing a rigorous correction procedure. The method was applied to field samples from the Gulf of Mexico and the Texas coast, successfully detecting NMPs in water, sediment, and biota. The presented method enables high-throughput, targeted monitoring of plastic pollution across diverse environmental matrices. |
| format | Artículo científico |
| id | pubmed_41407385 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | Analytical chemistry |
| record_format | pubmed |
| spellingShingle | Rapid and Sensitive Quantification of Nano- and Microplastics in Water, Sediment, and Biological Tissue by Pyrolysis-Gas Chromatography Tandem Mass Spectrometry with Dynamic Reaction Monitoring. Gahn, M Bryan Wharton, Marcus Mortuza, Asif Hala, David Marshall, Christopher D Kaiser, Karl Microplastics Geologic Sediments Gas Chromatography-Mass Spectrometry Water Pollutants, Chemical Tandem Mass Spectrometry Pyrolysis Animals Environmental Monitoring Rapid and Sensitive Quantification of Nano- and Microplastics in Water, Sediment, and Biological Tissue by Pyrolysis-Gas Chromatography Tandem Mass Spectrometry with Dynamic Reaction Monitoring. Gahn, M Bryan Wharton, Marcus Mortuza, Asif Hala, David Marshall, Christopher D Kaiser, Karl Microplastics Geologic Sediments Gas Chromatography-Mass Spectrometry Water Pollutants, Chemical Tandem Mass Spectrometry Pyrolysis Animals Environmental Monitoring A highly sensitive and selective method was developed for the quantification of nano- and microplastics (NMPs) in water, sediments, and biological tissues using pyrolysis gas chromatography coupled with triple quadrupole mass spectrometry (Py-GC-qQq-MS). Dynamic multiple reaction monitoring (DMRM) and internal standard calibration enabled quantification of 12 common polymers at nanogram levels (1-126 ng). Sample preparation and cleanup was matrix-specific, employing filtration, enzymatic digestion, or pressurized liquid extraction. The addition of calcium carbonate (CaCO) enhanced signal intensity for several polymers, while tandem mass spectrometry ensured high specificity and sensitivity. Lipid interference for the major plastics polyethylene, polypropylene and nylon-66 was addressed by developing a rigorous correction procedure. The method was applied to field samples from the Gulf of Mexico and the Texas coast, successfully detecting NMPs in water, sediment, and biota. The presented method enables high-throughput, targeted monitoring of plastic pollution across diverse environmental matrices. |
| title | Rapid and Sensitive Quantification of Nano- and Microplastics in Water, Sediment, and Biological Tissue by Pyrolysis-Gas Chromatography Tandem Mass Spectrometry with Dynamic Reaction Monitoring. |
| topic | Microplastics Geologic Sediments Gas Chromatography-Mass Spectrometry Water Pollutants, Chemical Tandem Mass Spectrometry Pyrolysis Animals Environmental Monitoring |
| url | https://pubmed.ncbi.nlm.nih.gov/41407385/ |